Category Archives: Uncategorised

External Hardware Watchdog with ATtiny85

Posted on 18 March 2022 by Willem Aandewiel

This post has 398 views Sometimes the internal Watchdog Timer (WDT) of a MCU is working more against you than that it ‘helps’ you. Also an internal WDT is not always up to the task of resetting the main MCU … Continue reading →

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Simple Challenge/Response sketch

Posted on 30 May 2021 by Willem Aandewiel

[ ]For a project I’m working on with Jelmer (JDJelectronics) we have to communicate with a SIMCOM GPRS modem. I wrote an interactive sketch that can handle the communication (with so called “AT” commands) with a GPRS modem. Parts of … Continue reading →

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Slimme Meter Poort Extender

Posted on 16 April 2021 by Willem Aandewiel

[ ] Bijna alle Nederlandse huishoudens zijn inmiddels uitgerust met een zgn. “Slimme meter”. Deze meter stelt de energie leveranciers in staat om op afstand de meterstanden op te vragen. Om ook de eindgebruiker te bedienen hebben de Slimme Meters … Continue reading →

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digital Tape Recorder for the KIM-1 (and clones)

Posted on 20 February 2021 by Willem Aandewiel

[ ]In October 2017 I wrote a post with the title “Solid State Tape Device for the (micro)KIM“. Recently one of the makers (Dirk Dral) wanted to adapt the device for use with a genuine KIM-1 and ran into some … Continue reading →

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Posted in Arduino, Computer, ESP8266, Firmware, Hardware, KiCAD, KIM, Uncategorised, WiFi | Tagged , , , , | 17 Comments

Hurghada 2013

Posted on 22 September 2013 by Willem Aandewiel

Vakantie 2013

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Posted in Uncategorised | 2 Comments