The Atmega32A uses the Arduino bootloader with programming through the ICSP port, and full instructions are given in the hackaday.io project page alongside all the files required to build your own ...

While it will gall the anti-Arduino crowd, [Just4Fun] uses an Arduino (well, an ATmega32A with the Arduino bootloader) to stand in for a host of Z80 peripheral devices. You can see a video of the ...

Alternatively, you can use the Protostack Development board in the same way you would an Arduino, and "stack" additional development boards or prototyping boards on top. Protostack's ATmega32A ...