[Andrew] writes in with his Z80 single-board computer made from scratch, using the Arduino standard headers for its ... mimicking the pins found in an Arduino Uno. The code, available on GitHub ...

Then, an Arduino board might be exactly what you're looking for. This open-source hardware platform comes in a multitude of versions, from the classic Uno ... pins (the Wi-Fi shield to the SPI ...

Microcontroller demo boards such as the Arduino UNO are ubiquitous on Hackaday as ... position due to a custom jig which means a standard shield will fit right into place. The Arduino started ...