Look, [lord feistel] is doing glitching attacks on an ATMega328P! All you need is an Arduino board with its few SMD capacitors removed or a bare 328P chip, a FET, and some sort of MCU to drive it.

With a little experimentation, [Kevin] found he could fit a TQFP32 ATMega328p – the same ... involved taking Adafruit and Sparkfun breakout boards, and modifying the individual circuits ...