Here is all you need to mine bitcoins with just using cgminer.exe that comes standard with most Linux Operating Systems. You can additionally download it and use it with Microsoft Windows. A Raspberry Pi would be the easiest. Just plug in the USB Power Supply. Plug in the USB Mining Sticks run one Fan and Go!
Thes run for 3 Hours on Battery Power. USB C Cable is lightning Fast To Recharge only 2 Hours. Runs at 3.4 GHZ with 12 GB DDR Ram 512 GB SSD Har Drive.