Category Archives: Hardware

Yet Another Parametric Projectbox generator

[ ] Een Nederlandse vertaling van deze post kun je hier vinden. With every electronic circuit I make, there comes a moment when the project is “finished”…. almost! The last step is always to find a suitable projectbox and even … Continue reading

Posted in 3D printing, Arduino, Computer, ESP8266, Hardware, Scripts | 35 Comments

Nog een geparametriseerde projectbox generator

[ ] Yet Another Parametric Projectbox generator Here you can find an English version of this post. Bij iedere elektronische schakeling die ik maak komt er een moment dat het project “af” is …. bijna! De laatste stap is altijd … Continue reading

Posted in 3D printing, Arduino, Computer, ESP8266, Hardware, Scripts | Tagged , , , , | 16 Comments

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

[ ]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

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

A 32kb Memory Expansion Board for the microKIM

[ ] As you may know, I own a microKIM (KIM-1 clone) Single Board Computer (SBC).  It is a trip down memory lane to work with the incredible simplicity of what was once “top of the bill” technology. The original … Continue reading

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Extending GPIO pins on your Micro Processor

[ ]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. For a recent project I switched from the ESP8266 to the ESP32 … Continue reading

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An ESP8266 Ticker

[ ] INTRODUCTION From the moment I saw the MAX7219 Dot matrix modules I wanted to build a news ticker. I wanted the option to enter my own messages without having to install special Apps on my phone or tablet. … Continue reading

Posted in Arduino, ESP8266, Hardware, WiFi | Tagged , , , , , , , | 60 Comments

Controlling Lots of Relays with only 2 GPIO pins

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

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