The question for the battery life was already raised below - and answered. It lasts for 4,5 hours.
Did you installed Teensyduino next to Arduino? If so check the configuration (see picture)
Certainly you could use other battery packs. The only thing you have to keep in mind is that the min. output current should be 2A. Most of the cheaper/smaller packs only have around 1A or 500mA. This one ( https://www.amazon.com/dp/B071NP9PGR ) should power the Pi properly. Unfortunately the electronics of different packs won't fit the 4 holes for the "battery load indicator lights" on the back of the GamePi.
thanks for the appreciation. The 3D printer sits in an self-build 50x50x50 enclosure. When printing ABS you need a constant ambient temperature of around 40°C or the printed object will warp and crack. The foam is some cheap acoustic isolation foam. The printer is cheap so it's also noisy. I added the foam inside the enclosure to keep it quiet. I am already 3D printing (sometimes selling) parts to friends and colleagues ;)
Check out the picture of "Step 12: Wiring: Power". The top left micro USB jack i where you plug in the charger (5V micro USB, e.g. the same as you use to charge your phone)
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Good point. I have an arduino pro somewhere around - gonna use it in the next version.
OK so I measured battery life using a camera filming the Pi while running a SNES game. The GamePi died after 4,5 hours.
easiest way is to swap the used HDMI display with a display which is using the composite video output of the Pi. So you could use the HDMI port to connected the Pi to your TV.
I tried acetone vapor on another version of the case - but it went horribly wrong. So I stayed with spray paint and sanding.
oh, man. I should have googled the name before :D
Thanks for the critics. This build wasn't really much about saving costs. Good point using a rear view cam monitor - gonna try it in the next (cost effective) build. I was thinking about a pi zero w in the first place but in another build ( https://www.thingiverse.com/thing:2790453 ) I noticed that PSX game are not running that well - so I went the the Pi 3.
Thanks. You can check the list of supported platforms here:https://github.com/retropie/retropie-setup/wiki/Supported-Systems
yep, that's the right - somewhere around $160. As I said you can safe a good amount of money if you get the parts from ebay, aliexpress, or somewhere cheap.
GamePi - the Handheld Emula...View Instructable »