Before I worked with computers, I was interested in electronic circuits and the construction of all kinds of electronic devices. Over the past few years I’ve rediscovered this interest and occasionally explore both old and new hardware.

Blog posts

Brymen BM257s

Velleman K8055N – interface board for USB

LED display HDSP-211x

LED display DL-2614, HDLO-2614

Assignment of the pins of the ATmega 328P in the Arduino Uno

Shift register 74HC595

Port expander MCP23017

Other sources

List of 4000-series integrated circuits (Wikipedia)

List of 7400-series integrated circuits (Wikipedia)

LOGIC Pocket Data Book (Rev. B, 7400 series Texas Instruments)