Category Archives: Computer

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 , , , , | 6 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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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

I2C Rotary Encoder

5,691 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

Posted in Arduino, Computer, ESP8266, Hardware, KiCAD | Tagged , , | 7 Comments

Universal InfraRed IoT Learning Remote

[ ] 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

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

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

[ ] 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

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

DSMR-logger V4 (Slimme Meter uitlezer)

[ ] 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

Posted in Arduino, Computer, ESP8266, Hardware, WiFi | 449 Comments