BIT4 is a 4Bit microcontroller – fully programmable with only three buttons.

https://www.electronics-lab.com/bit4-is-a-4bit-microcontroller-fully-programmable-with-only-three-buttons/

BIT4 is a 4Bit microcontroller – fully programmable with only three buttons. The BIT4 microcontroller has 256 Bytes of programm memory, split in 16 pages with each 16 instructions. A instruction is 8bit wide and consists of an command and data: To enter the programming mode, hold BTN2 down, press the RESET button once and […]