Typically I use select as my hotkey, so pressing select + L will load a save game, while select + R will save a game, select + start will exit a game. Yeah, i'm not sure how often SD cards actually corrupt, but it had happened once to my brother in law, so that is why I implement some type of safe shutdown button usually (my nieces and nephew would always just pull the plug and never shut it down properly ever).Īs for the hotkey button, it is for special functions in game. Oh and rodocop, do you know what the 'hotkey' is for in retropie? maybe I could repgram the tactile witch for that if it's usefull.ītw eleven GBZ?! That's amazing! keep up the good work! But I could re-use the button for different functions as well. Well I heard from ETA prime that cutting the power off without a save shutdown, rarely causes a corrupted SD card. So I completely changed my design and here is the result: Veterangamer helped me out and let me realize that a using a battery would be absurd sinds the controller will be pluged into a TV so you're wired anyway.

So I went to the forums and asked around. After a week of waiting I realized that I didn't check if there was a 5V booster inside of the TP4056!!! This is as most of you know mandatory for the rpi to function. Sinds the capacity of my battery that I was going to use was 500Mah, there would be a 'slight' overkill.Īfter a lot of research I found out that is was possible to change resistor 3 with a 2,2K resistor so the battery would be charged at 540Mah, which would be acceptable. This seemd right to me at first, but later I found out that you should never charge a battery at a higher rate than its capacity. I was going to use the TP4056 charger, which charges a battery at 5V at 1AMP. However there where a lot of problems with the battery charger. So I went to aliexpress and found all the parts that would be able to replace everything that Anthony (from the guide linked above) uses.

I started by figuring out how to make it very cheap.

I was browsing on the internet latey and I found a cool RPI powerd project:

Connect a snes usb controller