Martin Ancher's starred repositories
ATTINY85-SIMULTANEOUSLY-USING-I2C-AND-SPI-PROTOCOLS
Performing both SPI and I2C protocols simultaneously on the ATTiny85
Relatively-Universal-ROM-Programmer
Hardware to program W27C512 EEPROM or any 24/28/32 pin ROM requiring from 5V to 27V programming voltage.
fpcupdeluxe
A GUI based installer for FPC and Lazarus
zx81-keyboard
ZX81 Mechanical Keyboard
struct-z80
Structured Programming in Z80 Assembly
ch55xduino
An Arduino-like programming API for the CH55X
zx-iot-video
ESP32-based Tape/WLAN file server for ZX81, with VGA and/or LCD display support