Author Archives: Willem Aandewiel

Controlling Lots of Relays with only 2 GPIO pins

Posted on 1 May 2020 by Willem Aandewiel

Piggyback board for 8- or 16-relays boards to control with I2C Continue reading →

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Posted in Arduino, Computer, ESP8266, Hardware, WiFi | Tagged , , , , , , | 1 Comment

restAPI’s zijn hip! (nieuwe firmware voor de DSMR-logger)

Posted on 28 February 2020 by Willem Aandewiel

Nieuwe, op restAPI’s gebaseerde firmware voor de DSMR-logger
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Posted in Arduino, ESP8266, WiFi | Tagged , , , , | 137 Comments

I2C Rotary Encoder

Posted on 3 October 2019 by Willem Aandewiel

3,143 views I will address two topics in this post. The first one is about Rotary Encoders and what you can do with them. The second is about the Inter-Integrated Circuit protocol (I²C), developed by Philips. Een in het Nederlands … Continue reading →

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Posted in Arduino, Computer, ESP8266, Hardware, KiCAD | Tagged , , | 4 Comments

Universal InfraRed IoT Learning Remote

Posted on 15 July 2019 by Willem Aandewiel

[ ] 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). I will use the affordable and … Continue reading →

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Posted in Arduino, Computer, ESP8266, Hardware, KiCAD, WiFi | 1 Comment

Always wanted to own a PDP-11? Now you can!

Posted on 22 May 2019 by Willem Aandewiel

[ ] Some time ago I wrote a post about my trip down memory lane. I visited the Apple Museum Nederland and wrote how that brought me to the micro-KIM computer. A replica of my very first computer: the KIM-1. … Continue reading →

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Posted in Computer, Hardware | Tagged , , , | 2 Comments

DSMR-logger V4 (Slimme Meter uitlezer)

Posted on 9 April 2019 by Willem Aandewiel

[ ] In augustus 2018 publiceerde ik een project voor het uitlezen van de Slimme Meter. Aan de hand van de vele reacties van de mensen die het project hebben nagebouwd en mijn eigen ervaring met versie 3 van de … Continue reading →

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Posted in Arduino, Computer, ESP8266, Hardware, Uncategorised, WiFi | 415 Comments

1of! Platform for developing ESP8266 devices

Posted on 20 February 2019 by Willem Aandewiel

[ ]         Je kunt een Nederlandse versie van deze post hier vinden.   Developing hardware almost always run through the same stages: It starts with an idea You design a concept on paper or in your … Continue reading →

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Posted in Arduino, Computer, ESP8266, Hardware, WiFi | Tagged , , , , , | 3 Comments