As you know, assembling the Waveshare Game-HAT is quite simple if it is one of the models that are fully compatible with the design, be it the Raspberry Pi 2/3 / 3A + / 3B / 3B + /, I personally prefer that the game console can be handled with a Raspberry Pi Zero SBC, since it has a lower energy consumption, is cheaper and for my use is ideal.
I exclusively intend to play 8-bit and 16-bit games and have a battery performance that is greater than 2 hours that Raspberry Pi 3B usually gives me (which I used in the Game-HAT since I acquired it), together with a battery 18650 Samsung 2600mAh. Another objective is to reduce the overheating experienced by 3B (around 55-60° Celsius degrees), with said Raspberry Pi Zero that in my experience of use remained within the range marked between 35° to 45° Celsius degrees. Finally, I require that the changes that I will make to the Game-HAT be completely reversible, so that you can use any of the compatible SBCs, with minimal work involved in modifying the HAT.
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