{"id":2191,"date":"2020-02-26T15:14:47","date_gmt":"2020-02-26T14:14:47","guid":{"rendered":"https:\/\/willem.aandewiel.nl\/?page_id=2191"},"modified":"2026-04-10T14:46:48","modified_gmt":"2026-04-10T12:46:48","slug":"recent-projects","status":"publish","type":"page","link":"https:\/\/willem.aandewiel.nl\/","title":{"rendered":"Recent Projects"},"content":{"rendered":"\n<p>[ 449,676 keer bekeken \/ views ]  <div id=\"metaslider-id-6410\" style=\"max-width: 300px; margin: 0 auto;\" class=\"ml-slider-3-107-0 metaslider metaslider-flex metaslider-6410 ml-slider ms-theme-default nav-hidden\" role=\"region\" aria-label=\"My Projects\" data-height=\"180\" data-width=\"300\">\n    <div id=\"metaslider_container_6410\">\n        <div id=\"metaslider_6410\">\n            <ul class='slides'>\n                <li style=\"display: block; width: 100%;\" class=\"slide-7752 ms-image \" aria-roledescription=\"slide\" data-date=\"2023-04-08 12:35:51\" data-filename=\"WireTraces-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/04\/06\/rgd-led-strip-controller\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/04\/WireTraces-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-7752 msDefaultImage\" title=\"WireTraces\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">RGB LED strip Controller<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6433 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"20210104_202627-300x180.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/06\/09\/an-esp8266-ticker\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/06\/20210104_202627-300x180.jpg\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6433 msDefaultImage\" title=\"20210104_202627\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">News &amp; Weather Ticker<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-7323 ms-image \" aria-roledescription=\"slide\" data-date=\"2022-10-19 14:46:23\" data-filename=\"ESP32-WROOM-PIC-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/10\/19\/experimenteren-met-micro-controllers\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-7323 msDefaultImage\" title=\"ESP32-WROOM-PIC\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Universele Experimenteer Bordjes<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6431 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"ADW0720-T2a-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/08\/10\/extending-gpio-pins-on-your-micro-processor\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/08\/ADW0720-T2a-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6431 msDefaultImage\" title=\"ADW0720-T2a\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">I2C Leds Multiplexer<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6443 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-07 11:25:55\" data-filename=\"DSMR-logger_Case-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/11\/15\/crisis-what-crisis\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/12\/DSMR-logger_Case-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6443 msDefaultImage\" title=\"DSMR-logger_Case\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Smart Meter Logger ESP32<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6428 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"I2CRM_Top_3D-thump-250x150.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/05\/01\/controlling-lots-of-relays-with-only-2-gpio-pins\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_Top_3D-thump-250x150.jpg\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6428 msDefaultImage\" title=\"I2CRM_Top_3D-thump\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">I2C 16 Relay Multiplexer<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6429 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"I2C_PiggyBack-e1588499972565-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/05\/01\/controlling-lots-of-relays-with-only-2-gpio-pins\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/05\/I2C_PiggyBack-e1588499972565-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6429 msDefaultImage\" title=\"I2C_PiggyBack\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">I2C 16 Relay Multiplexer<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6658 ms-image \" aria-roledescription=\"slide\" data-date=\"2022-01-01 15:59:10\" data-filename=\"YAPP_stands-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/01\/01\/nog-een-geparameteriseerde-projectbox-generator\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/12\/YAPP_stands-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6658 msDefaultImage\" title=\"YAPP_stands\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Yet Another Parametric Projectbox generator<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6427 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"I2C_RotaryEncoder_v22-PCB_top-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2019\/10\/03\/i2c-rotary-encoder\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6427 msDefaultImage\" title=\"I2C_RotaryEncoder_v22-PCB_top\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">I2C Rotary Encoder<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6473 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-04-16 16:59:52\" data-filename=\"P1_HUB_v3_top-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/04\/16\/slimme-meter-poort-extender\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/04\/P1_HUB_v3_top-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6473 msDefaultImage\" title=\"P1_HUB_v3_top\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Slimme Meter P1 HUB<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-7180 ms-image \" aria-roledescription=\"slide\" data-date=\"2022-09-17 13:46:33\" data-filename=\"ZDDportal-a-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/09\/17\/detectie-illegale-bijzet-bij-ondergrondse-containers\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/ZDDportal-a-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-7180 msDefaultImage\" title=\"ZDDportal-a\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Zwerfafval Portal<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6442 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-07 11:22:38\" data-filename=\"BijenSchans-300x180.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2017\/05\/03\/beehave\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans-300x180.jpg\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6442 msDefaultImage\" title=\"BijenSchans\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">a beehive data logger<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6435 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"dTR_top-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/02\/20\/digital-tape-recorder-for-the-kim-1-and-clones\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/02\/dTR_top-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6435 msDefaultImage\" title=\"dTR_top\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">digital Tape Recorder for the KIM-1 and clones<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6423 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 09:56:01\" data-filename=\"DONOFF_3Db-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2018\/12\/03\/donoff-wifi-enabled-light-dimmer\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/12\/DONOFF_3Db-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6423 msDefaultImage\" title=\"DONOFF_3Db\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">LED Light Dimmer<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-7037 ms-image \" aria-roledescription=\"slide\" data-date=\"2022-09-07 16:33:18\" data-filename=\"CubeInCubeInlay-300x180.png\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/09\/07\/spotify-muziek-speler-met-intuitieve-bediening\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/CubeInCubeInlay-300x180.png\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-7037 msDefaultImage\" title=\"CubeInCubeInlay\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">Een \u00e1ndere manier om naar muziek te luisteren<\/div><\/div><\/li>\n                <li style=\"display: none; width: 100%;\" class=\"slide-6426 ms-image \" aria-roledescription=\"slide\" data-date=\"2021-03-01 10:03:35\" data-filename=\"1of-Enclosure-b-300x180.jpg\" data-slide-type=\"image\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2019\/07\/15\/universal-infrared-iot-learning-remote\/\" target=\"_self\" aria-label=\"View Slide Details\" class=\"metaslider_image_link\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Enclosure-b-300x180.jpg\" height=\"180\" width=\"300\" alt=\"\" class=\"slider-6410 slide-6426 msDefaultImage\" title=\"1of!-Enclosure-b\" \/><\/a><div class=\"caption-wrap\"><div class=\"caption\">IR IoT Learning Remote<\/div><\/div><\/li>\n            <\/ul>\n        <\/div>\n        \n    <\/div>\n<\/div><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Desktop Luchtkwaliteit Meter<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"720\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/displayMetingen.png\" alt=\"\" class=\"wp-image-8892\" style=\"width:176px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/displayMetingen.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/displayMetingen-300x211.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/displayMetingen-768x540.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Dit is derde en laatste post in het kader van het meten van de luchtkwaliteit. Dit keer beschrijf ik een meter die in je woonkamer, slaapkamer, keuken of kantoor kunt neerzetten en die constant de luchtkwaliteit van de ruimte meet en op een scherm zichtbaar maakt.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2026\/04\/10\/desktop-luchtkwaliteit-meter\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:3px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Soft Power Latch Circuit<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/softPowerLatch_3D-1024x689.png\" alt=\"\" class=\"wp-image-8785\" style=\"aspect-ratio:1.4862569754947836;width:190px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/softPowerLatch_3D-1024x689.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/softPowerLatch_3D-300x202.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/softPowerLatch_3D-768x516.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/04\/softPowerLatch_3D.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>With this design, you create an extremely efficient circuit that allows you to power a project with a single push-button and turn it off again using that same button, while consuming virtually no current in the \u201coff\u201d state. Ideal for battery-powered projects!<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2026\/04\/07\/soft-power-latch-2\/\">Continue Reading<\/a> \u2026<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Vakverdeling voor lades en dozen<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"910\" height=\"692\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/myLadeInlay_3D.png\" alt=\"\" class=\"wp-image-8738\" style=\"width:222px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/myLadeInlay_3D.png 910w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/myLadeInlay_3D-300x228.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/myLadeInlay_3D-768x584.png 768w\" sizes=\"auto, (max-width: 910px) 100vw, 910px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post presenteer ik twee (python) programma&#8217;s die dit eenvoudig(er) maken.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2026\/03\/29\/vakverdeling-genereren-voor-laden-en-dozen\/\">Continue Readin<\/a>g &#8230;<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Draagbare Fijnstofmeter<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/ePaper_Data-1024x768.jpg\" alt=\"\" class=\"wp-image-8644\" style=\"width:219px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/ePaper_Data-1024x768.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/ePaper_Data-300x225.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/ePaper_Data-768x576.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/03\/ePaper_Data.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Dit ontwerp bouwt voort op de eerder ontwikkelde stofdeeltjesmeter (Particulate Matter meter).<br>In deze post maak ik een draagbare fijnstof meter die overal gebruikt kan worden om de concentratie fijnstof te meten.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2026\/03\/16\/draagbare-fijnstofmeter-op-batterijen\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:7px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Stofdeeltjes (Particulate Matter) meter<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/02\/particulateMatter.png\" alt=\"\" class=\"wp-image-8547\" style=\"width:135px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/02\/particulateMatter.png 500w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/02\/particulateMatter-300x300.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2026\/02\/particulateMatter-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post beschrijf ik hoe je eenvoudig een stofdeeltjes (particulate matter) sensor kunt maken.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2026\/01\/28\/fijnstof-meten-voor-makers-esp32-pms5003\/\">Continue Reading<\/a> &#8230;<br><\/p>\n\n\n\n<div style=\"height:23px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Pulse Catcher voor gasmeter<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"676\" height=\"1200\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/gasMeterWithMirror.png\" alt=\"\" class=\"wp-image-8404\" style=\"width:101px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/gasMeterWithMirror.png 676w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/gasMeterWithMirror-169x300.png 169w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/gasMeterWithMirror-577x1024.png 577w\" sizes=\"auto, (max-width: 676px) 100vw, 676px\" \/><\/figure>\n<\/div>\n\n\n<p>Hoe kun je een Pulse Catcher maken om het gasverbruik te meten?<br><br>Er zijn gebruikers van de verschillende DSMR-loggers die ik heb ontworpen die een gasmeter hebben die niet op de Slimme Meter is aangesloten.&nbsp;<br>De oplossing is een apparaatje dat de pulsen van de gasmeter opvangt en doorstuurt naar de DSMR-logger.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2025\/03\/28\/gasmeter-pulse-catcher\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:28px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Hoe bibliotheken het leven makkelijker maken<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/Screenshot-2025-03-15-at-16.03.32.png\"><img decoding=\"async\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2025\/03\/basicSPA.webp\" alt=\"\" style=\"width:240px;height:auto\"\/><\/a><\/figure>\n<\/div>\n\n\n<p>In een serie van drie posts beschrijf ik het gebruik van een door mij geschreven bibliotheek. <\/p>\n\n\n\n<p>Deel 1: <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2025\/03\/15\/bibliotheken-om-het-leven-makkelijker-te-maken\/\">Networking<\/a><br>Deel 2: <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2025\/03\/17\/bibliotheken-om-het-leven-makkelijker-te-maken-part-2\/\">Single Page Application Manager<\/a><br>Deel 3: <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2025\/03\/25\/bibliotheken-om-het-leven-makkelijker-te-maken-part-3\/\">Filesystem Manager<\/a><br><br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2025\/03\/15\/bibliotheken-om-het-leven-makkelijker-te-maken\/\">Continue Reading &#8230;<\/a><\/p>\n\n\n\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Slimme Meter Uitlezer &#8211; Nieuwe Functionaliteit<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"930\" height=\"680\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/11\/blockDiagram-2.png\" alt=\"\" class=\"wp-image-7417\" style=\"width:236px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/11\/blockDiagram-2.png 930w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/11\/blockDiagram-2-300x219.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/11\/blockDiagram-2-768x562.png 768w\" sizes=\"auto, (max-width: 930px) 100vw, 930px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post beschrijf ik nieuwe functionaliteit van de DSMRlogger32.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2024\/09\/24\/slimme-meter-uitlezer-nieuwe-functionaliteit\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Overstappen naar PlatformIO (part 1)<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"621\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-1024x621.png\" alt=\"\" class=\"wp-image-8016\" style=\"width:236px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-1024x621.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-300x182.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-768x466.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post beschrijf ik een programma waarmee eenvoudig een Arduino IDE project omgezet kan worden naar PlatformIO<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2024\/08\/14\/conversie-arduino-naar-platformio-project\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:8px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Overstappen naar PlatformIO (part 2)<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"660\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Install_PIO-1024x660.png\" alt=\"\" class=\"wp-image-8055\" style=\"width:236px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Install_PIO-1024x660.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Install_PIO-300x193.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Install_PIO-768x495.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Install_PIO.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post geef ik een korte introductie van de PlatformIO IDE<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2024\/08\/18\/starten-met-platformio\/\">Continue Reading &#8230;<\/a><\/p>\n\n\n\n<div style=\"height:7px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Universal Prototyping Board<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"907\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/04\/Universal_Proto_Front-1024x907.png\" alt=\"\" class=\"wp-image-7967\" style=\"width:236px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/04\/Universal_Proto_Front-1024x907.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/04\/Universal_Proto_Front-300x266.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/04\/Universal_Proto_Front-768x680.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/04\/Universal_Proto_Front.png 1087w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>In the intricate world of microcontroller unit (MCU) development, versatility is often sacrificed for specificity. However, imagine a single solution that transcends these limitations \u2013 the&nbsp;<em>Universal Prototyping Board<\/em>.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2024\/04\/03\/a-universal-prototyping-board\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<div style=\"height:14px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Virtuele P1 Kabel<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/07\/31\/virtuele-p1-kabel\/\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/07\/vP1Receiver.png\" alt=\"\" class=\"wp-image-7828\" style=\"width:250px;height:188px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/07\/vP1Receiver.png 1000w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/07\/vP1Receiver-300x225.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/07\/vP1Receiver-768x576.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p>Deze post beschrijft hoe je een &#8220;Virtuele P1 Kabel&#8221; kunt maken.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/04\/06\/rgd-led-strip-controller\/\">Continue<\/a><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/07\/31\/virtuele-p1-kabel\/\"> Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:14px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">RGB LED strip controller<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/04\/LedLights-768x1024.png\" alt=\"\" class=\"wp-image-7708\" style=\"width:192px;height:256px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/04\/LedLights-768x1024.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/04\/LedLights-225x300.png 225w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/04\/LedLights.png 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<p>This project describes the design of a RGB LED strip controller board with an ESP32 processor board (ESP-DevKitC).<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/04\/06\/rgd-led-strip-controller\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Crisis? What crisis? (nieuwe <em>Slimme Meter reader<\/em>)<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/02\/IMG_0207-768x1024.jpg\" alt=\"\" class=\"wp-image-6960\" style=\"width:213px;height:160px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/02\/IMG_0207-768x1024.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/02\/IMG_0207-225x300.jpg 225w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/02\/IMG_0207.jpg 900w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n<\/div>\n\n\n<p>Met een energiecrises die iedereen raakt wordt het \u201c<em>in de gaten houden<\/em>\u201d van je energie verbruik steeds belangrijker. Daarom is het, na bijna vier jaar, hoog tijd om een nieuwe DSMR-logger te ontwikkelen.&nbsp;<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/11\/15\/crisis-what-crisis\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Porting Tasmota naar de DSMR-logger32<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"598\" height=\"578\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/12\/DSMR-logger_Case.png\" alt=\"\" class=\"wp-image-7521\" style=\"width:213px;height:200px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/12\/DSMR-logger_Case.png 598w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/12\/DSMR-logger_Case-300x290.png 300w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><\/figure>\n<\/div>\n\n\n<p>Omdat ik (Davy) thuis reeds heel wat esp8266 modules draaien heb met Tasmota, wenste ik de DSMR-logger32 ook te flashen met Tasmota.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/11\/21\/tasmota-voor-de-dsmr-logger32\/\">Continue Reading<\/a> &#8230;<\/p>\n\n\n\n<div style=\"height:12px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Switch to PlatformIO (part 1)<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"621\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-1024x621.png\" alt=\"\" class=\"wp-image-8016\" style=\"width:236px;height:auto\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-1024x621.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-300x182.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer-768x466.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2024\/08\/PIO_Explorer.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>In this post I describe a program that can be used to convert an Arduino IDE project to PlatformIO<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2024\/08\/16\/arduino-to-platformio-project-conversion\/\">Continue Reading<\/a><br><\/p>\n\n\n\n<div style=\"height:4px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">MIDI Drum Machine<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1006\" height=\"655\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/02\/drumKit_Side_View1.png\" alt=\"\" class=\"wp-image-7601\" style=\"width:252px;height:164px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/02\/drumKit_Side_View1.png 1006w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/02\/drumKit_Side_View1-300x195.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2023\/02\/drumKit_Side_View1-768x500.png 768w\" sizes=\"auto, (max-width: 1006px) 100vw, 1006px\" \/><\/figure>\n<\/div>\n\n\n<p>Een MIDI Drum Machine gebaseerd op een project van <em>Peter Balch<\/em>. Het is een \u00e9\u00e9n-op-\u00e9\u00e9n kopie van wat Peter Balch heeft gemaakt met alleen een door mij ontwikkelde PCB. Het is een leuke puzzel om alle onderdelen op een zo klein mogelijke printplaat te groeperen en dan ook nog zodanig dat je ze ook nog kunt solderen.&nbsp;<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2023\/02\/19\/midi-drum-machine\/\">Continue Reading<\/a><\/p>\n\n\n\n<div style=\"height:3px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Experimenteren met Micro Controllers<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC-1024x768.png\" alt=\"\" class=\"wp-image-7287\" style=\"width:256px;height:192px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC-1024x768.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC-300x225.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC-768x576.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/10\/ESP32-WROOM-PIC.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Ik heb twee nieuwe universeel toepasbare experimenteer printplaten ontworpen. E\u00e9n voor de ESP32 WROOM module en \u00e9\u00e9n voor de ESP32WROVER module. Op veler verzoek en voor het gebruiksgemak hebben beide bordjes een CH340C aan boord waarmee je de ESP32 eenvoudig via de USB poort kunt flashen. Als extra hebben ze ook een NeoPixel aan boord (gewoon, omdat het k\u00e1n)..<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/10\/19\/experimenteren-met-micro-controllers\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Zwerfafval detectie bij ondergrondse containers<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/Afval-a-1024x768.jpg\" alt=\"\" class=\"wp-image-7093\" style=\"width:240px;height:180px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/Afval-a-1024x768.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/Afval-a-300x225.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/Afval-a-768x576.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/Afval-a.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Deze post beschrijft de ontwikkeling van een Zwerfafval Detectie en Meldingen Systeem voor ondergrondse containers .. <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/09\/17\/detectie-illegale-bijzet-bij-ondergrondse-containers\/\">Continue Reading<\/a> .. <\/p>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Spotify Muziekspeler met Intu\u00eftieve bediening<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"680\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/ESPotify-Echo.png\" alt=\"\" class=\"wp-image-6980\" style=\"width:240px;height:170px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/ESPotify-Echo.png 960w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/ESPotify-Echo-300x213.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/09\/ESPotify-Echo-768x544.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n<\/div>\n\n\n<p>In deze post presenteer ik een project waarmee op een \u00e1ndere manier muziek afgespeeld kan worden<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/09\/07\/spotify-muziek-speler-met-intuitieve-bediening\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">External Watchdog Timer<\/h3>\n\n\n\n<p>In this post I describe how to make an External Watchdog Timer to monitor, for instance, an ESP8266 or ESP32.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/03\/18\/external-hardware-watchdog-with-attiny85\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Nog een geparametriseerde projectbox generator (YAPP)<\/h3>\n\n\n<div class=\"wp-block-image is-style-default\">\n<figure class=\"alignright size-medium is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/01\/YAPP_Arduino_box-300x225.jpg\" alt=\"\" class=\"wp-image-6640\" style=\"width:206px;height:155px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/01\/YAPP_Arduino_box-300x225.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/01\/YAPP_Arduino_box-1024x768.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/01\/YAPP_Arduino_box-768x576.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2022\/01\/YAPP_Arduino_box.jpg 1200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n\n\n<p><strong><em>Yet Another <strong>Parametric<\/strong> Projectbox Generator<\/em><\/strong><\/p>\n\n\n\n<p>In deze post leg ik uit wat de uitgangspunten van deze YAPP generator zijn en hoe je hem kunt gebruiken om mooie projectboxen te 3D-printen!<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/01\/01\/nog-een-geparameteriseerde-projectbox-generator\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AT tester (Challenge\/Response)<\/h3>\n\n\n\n<p>For a project I\u2019m working on with Jelmer (JDJelectronics) we have to communicate with a SIMCOM GPRS modem.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/05\/30\/simple-challenge-response-sketch\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">P1 Poort Extender (HUB)<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"887\" height=\"656\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/04\/P1_HUB_v3_3D-a.png\" alt=\"\" class=\"wp-image-6461\" style=\"width:216px;height:160px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/04\/P1_HUB_v3_3D-a.png 887w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/04\/P1_HUB_v3_3D-a-300x222.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2021\/04\/P1_HUB_v3_3D-a-768x568.png 768w\" sizes=\"auto, (max-width: 887px) 100vw, 887px\" \/><\/figure>\n<\/div>\n\n\n<p>Omdat er steeds meer Slimme meter uitlees kastjes op de markt komen is \u00e9\u00e9n P1 poort niet altijd genoeg, maar door de opzet van de P1 poort is het niet zonder meer mogelijk om twee (of meer) uitlees kastjes parallel op de P1 poort aan te sluiten. Deze post beschrijft hoe je dat toch voor elkaar kunt krijgen.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/04\/16\/slimme-meter-poort-extender\/\">Continue Reading<\/a> ..<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Extending GPIO pins on your Micro Processor<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/08\/ADW0720-T1a-150x150.png\" alt=\"\" class=\"wp-image-6131\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/08\/ADW0720-T1a-150x150.png 150w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/08\/ADW0720-T1a-50x50.png 50w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n<p>Somehow, no matter what micro processor I choose, I end up with too few GPIO pins for the projects needs or for what I want to do.<\/p>\n\n\n\n<p>To end this run for GPIO pins for once and for all I decided I needed a cheep extension board that could be configured for Switches (input) and LED\u2019s or other stuff (output). And while at it I thought some extra logic would be nice.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/08\/10\/extending-gpio-pins-on-your-micro-processor\/\">Continue Reading <\/a>..<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ESP8266 ticker<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"398\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/06\/MAX7219module.png\" alt=\"\" class=\"wp-image-2578\" style=\"width:131px;height:100px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/06\/MAX7219module.png 525w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/06\/MAX7219module-300x227.png 300w\" sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/figure>\n<\/div>\n\n\n<p>From the moment I saw the MAX7219 Dot matrix modules I wanted to build a news ticker. In addition to the messages to be entered by myself, I want the ticker to display the current weather and news items from the Internet and, of course, the time must also be shown!<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/06\/09\/an-esp8266-ticker\/\">Continue Reading<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Controlling lots of relays with only two GPIO pins<\/h3>\n\n\n\n<p>I recently worked on a project that needed to control a lot of relays. There are these nice boards with 8 or 16 relays that are well suited for my purpose. <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"794\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_16-Relay-Module-1024x794.jpg\" alt=\"\" class=\"wp-image-2388\" style=\"width:256px;height:199px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_16-Relay-Module-1024x794.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_16-Relay-Module-300x233.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_16-Relay-Module-768x595.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/04\/I2CRM_16-Relay-Module.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>But you need a lot of wires and GPIO pins to control all those relays. So I came up with a piggyback board that uses I2C to control the relays. <\/p>\n\n\n\n<p>You can now control as many of these boards as you like (well, there is a maximum address range of 127 I2C devices, but still 2000 relays with only two GPIO pins .. wauw!) <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/05\/01\/controlling-lots-of-relays-with-only-2-gpio-pins\/\">Continue Reading<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">I2C Rotary Encoder<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"848\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top-1024x848.png\" alt=\"\" class=\"wp-image-2129\" style=\"width:256px;height:212px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top-1024x848.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top-300x248.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top-768x636.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/10\/I2C_RotaryEncoder_v22-PCB_top.png 1123w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>A Rotary Encoder is a device that looks (physically) like a potentiometer but it does not vary the resistance between two\/three connectors. Instead it gives pulses when the axle is rotated. Another difference with the potentiometer is that you can rotate the axle over 360\u00b0 (in fact, there is no limit in how many degrees you can rotate the axle). <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2019\/10\/03\/i2c-rotary-encoder\/\">Continue Reading<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Universal InfraRed Learning IoT Remote<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"715\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Proto_Finished2-1024x715.png\" alt=\"\" class=\"wp-image-2023\" style=\"width:256px;height:179px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Proto_Finished2-1024x715.png 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Proto_Finished2-300x210.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Proto_Finished2-768x536.png 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/07\/1of-Proto_Finished2.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>In this post I will guide you through the process of building a device that can capture Infrared-messages from an Infrared remote controller (learning mode), and resend the captured Infrared-messages (sending mode). <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2019\/07\/15\/universal-infrared-iot-learning-remote\/\">Continue Reading<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\"\/>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Slimme Meter Uitlezer<\/h2>\n\n\n\n<p>Zo langzamerhand zijn alle huizen in Nederland uitgerust met een \u201c<em>Slimme Meter<\/em>\u201d. Hoog tijd dus om een project te starten om deze Slimme Meter thuis uit te kunnen lezen en de gegevens op een door jouw gewenst formaat te presenteren.<\/p>\n\n\n\n<p class=\"has-light-green-cyan-to-vivid-green-cyan-gradient-background has-background\"><strong>Dit project wordt niet meer actief ontwikkelt. De vervanger is de DSMR-logger32 met de ESP32 processor (zie de post &#8220;<a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2022\/11\/15\/crisis-what-crisis\/\">Crisis? What crisis? (nieuwe <em>Slimme Meter reader<\/em>)<\/a>&#8220;.<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-background\" style=\"color:#fa2302;background-color:#cdecf9\">Op 15 juni 2021 is v3.0.1 van de DSMRloggerAPI firmware gereleased! <br>Deze zgn. &#8220;<em><strong>One Fits All<\/strong><\/em>&#8221; release maakt het overbodig om voor verschillende soorten Slimme Meters (DSMR 2+, 3+, 4+ 5+ en de Belgische varianten hiervan) aangepaste firmware te gebruiken. Alle (mij bekende) Slimme Meters kunnen met deze \u00e9ne release uitgelezen worden.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&gt;    DSMR-logger v4<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"803\" height=\"670\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/04\/DSMR-logger_V4-3D-a.png\" alt=\"\" class=\"wp-image-1880\" style=\"width:201px;height:168px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/04\/DSMR-logger_V4-3D-a.png 803w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/04\/DSMR-logger_V4-3D-a-300x250.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2019\/04\/DSMR-logger_V4-3D-a-768x641.png 768w\" sizes=\"auto, (max-width: 803px) 100vw, 803px\" \/><\/figure>\n<\/div>\n\n\n<p>Aan de hand van de vele reacties van de mensen die het project hebben nagebouwd en mijn eigen ervaring met versie 3 van de DSMR-logger vond ik het tijd worden om een nieuwe versie van de hardware en de firmware te ontwikkelen.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2019\/04\/09\/dsmr-logger-v4-slimme-meter-uitlezer\/\">Lees verder<\/a>.<\/p>\n\n\n\n<div style=\"height:3px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">&gt;    Nieuwe firmware voor de DSMR-logger v4<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"984\" height=\"836\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/03\/DSMRloggerAPI-start.png\" alt=\"\" class=\"wp-image-2310\" style=\"width:246px;height:209px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/03\/DSMRloggerAPI-start.png 984w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/03\/DSMRloggerAPI-start-300x255.png 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2020\/03\/DSMRloggerAPI-start-768x652.png 768w\" sizes=\"auto, (max-width: 984px) 100vw, 984px\" \/><\/figure>\n<\/div>\n\n\n<p>De nieuwe firmware voor de DSMR-logger is &#8220;<em>helemaal into<\/em>&#8221; <a rel=\"noreferrer noopener\" aria-label=\"restAPI (opens in a new tab)\" href=\"https:\/\/restfulapi.net\/\" target=\"_blank\">restAPI<\/a>&#8216;s. Dit is een eenvoudig protocol waarmee gegevens uit de DSMR-logger kunnen worden opgevraagd.<br>De nieuwe firmware laat het hele idee dat het &#8220;<em>alles zelf moet doen<\/em>&#8221; los en laat ingewikkelde- en tijdrovende taken (bijvoorbeeld het opbouwen en tonen van een GUI) aan anderen over. Hierdoor is de firmware compacter en sneller geworden. Uiteraard zorgt de nieuwe firmware wel voor het opbouwen van historische bestanden maar doet dit nu in zgn. <em>RING<\/em>-bestanden die veel robuuster en sneller zijn dan de sequenti\u00eble (<em>PRD<\/em>) bestanden die in vorige versies van de firmware worden gebruikt. Wat is gebleven is de intergratie met MQTT.<br><a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2020\/02\/28\/restapis-zijn-hip-nieuwe-firmware-voor-de-dsmr-logger\/\">Lees verder<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Aan de slag met de ESP8266<\/h3>\n\n\n\n<p>In deze post beschrijf ik hoe je de&nbsp;<em>Arduino IDE<\/em>&nbsp;voor de populaire ESP8266 processor-bordjes geschikt kunt maken. Hoewel al deze informatie gewoon van internet af te halen is blijkt het voor veel mensen, die de Arduino IDE of de ESP8266 bordjes net ontdekt hebben, overweldigend. <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2018\/09\/27\/aan-de-slag-met-de-esp8266\/\">Lees verder<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Solid State Tape Device for the (micro) KIM<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"831\" height=\"1024\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/10\/MOS_KIM-1_IMG_4211_cropped_scale-831x1024.jpg\" alt=\"\" class=\"wp-image-1398\" style=\"width:208px;height:256px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/10\/MOS_KIM-1_IMG_4211_cropped_scale-831x1024.jpg 831w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/10\/MOS_KIM-1_IMG_4211_cropped_scale-243x300.jpg 243w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/10\/MOS_KIM-1_IMG_4211_cropped_scale-768x947.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/10\/MOS_KIM-1_IMG_4211_cropped_scale.jpg 924w\" sizes=\"auto, (max-width: 831px) 100vw, 831px\" \/><\/figure>\n<\/div>\n\n\n<p>In 1976 I bought my first computer. That was at a time when there was no internet, there where no PC or Apple\u2019s! Computers where meant for big company\u2019s like insurance compagnies and multi nationals. No one had a computer at home. It was the time of the Homebrew Cmputer Club and Byte magazine. I had a Byte magazine subscription and at a certain point there was an advertisement in it from MOS-Technology for a single board computer called the KIM-1. <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2017\/10\/17\/kim_tapedevice\/\">Continue Reading<\/a>.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-blue-color has-light-gray-background-color has-text-color has-background\">NEW IMPROVED <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/02\/20\/digital-tape-recorder-for-the-kim-1-and-clones\/\">VERSION 2.0<\/a>! Faster, Better, Nicer! Read all about it.<br>There is also a <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2021\/02\/19\/a-32kb-memory-expansion-board-for-the-microkim\/\">32kb Memory Expansion Board<\/a>!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">BeeHave &#8211; a beehive data logger<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans-1024x768.jpg\" alt=\"\" class=\"wp-image-1388\" style=\"width:256px;height:192px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans-1024x768.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans-300x225.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans-768x576.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2017\/05\/BijenSchans.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>The objective of this project is to create a device that will measure the temperature inside the beehive at certain intervals, for instance every one, two, three, four or six hours. <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2017\/05\/03\/beehave\/\">Continue Reading.<\/a><\/p>\n\n\n\n<div style=\"height:4px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Eenvoudige Programmer voor de ESP-01 (ESP8266)<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/08\/ESP-01andProgrammer-1024x768.jpg\" alt=\"\" class=\"wp-image-1420\" style=\"width:256px;height:192px\" srcset=\"https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/08\/ESP-01andProgrammer-1024x768.jpg 1024w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/08\/ESP-01andProgrammer-300x225.jpg 300w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/08\/ESP-01andProgrammer-768x576.jpg 768w, https:\/\/willem.aandewiel.nl\/wp-content\/uploads\/2018\/08\/ESP-01andProgrammer.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p>Om de ESP-01 te kunnen programmeren heb je een programmer nodig. Een andere, goedkope oplossing is, als je al een Arduino hebt, een speciaal programma in een Arduino-UNO te laden en dan met losse draadjes een aantal aansluitingen te maken tussen de Arduino en het ESP-01 bordje.<br>Het is makkelijker om een \u201cESP-01 to USB Adapter\u201d te kopen en hier een kleine modificatie op aan te brengen. <a href=\"https:\/\/willem.aandewiel.nl\/index.php\/2018\/08\/27\/eenvoudige-programmer-voor-de-esp-01-esp8266\/\">Lees verder<\/a>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\"\/>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-wide\"\/>\n","protected":false},"excerpt":{"rendered":"<p>[ ] Desktop Luchtkwaliteit Meter Dit is derde en laatste post in het kader van het meten van de luchtkwaliteit. Dit keer beschrijf ik een meter die in je woonkamer, slaapkamer, keuken of kantoor kunt neerzetten en die constant de &hellip; <a href=\"https:\/\/willem.aandewiel.nl\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2191","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/pages\/2191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/comments?post=2191"}],"version-history":[{"count":119,"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/pages\/2191\/revisions"}],"predecessor-version":[{"id":8912,"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/pages\/2191\/revisions\/8912"}],"wp:attachment":[{"href":"https:\/\/willem.aandewiel.nl\/index.php\/wp-json\/wp\/v2\/media?parent=2191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}