Alan numitron clock
SNES Pi Webserver
USB Volume/USB toys
SNES Arcade cabinet
Game boy projects
Home Presence Detector
Rand Nerd Tut
Carnet du maker (fr)
ATmel blog (defunct)
retropie arcade controllerMy pal Sev' is building an arcade controller with a Retropie Raspi 3 inside for his daughter (for him really but hey, who hasn't used that excuse among the makers in the world ?). So I'm lending my workshop and modest expertise. Here's the lessons learnt.
Edit: it ended up being an afternoon project that closed on a big session of high-fives and some good old Metal Slug on the TV \(^_^)/
PrincipleA Raspi 3, a scavenged big ass USB arcade controller from Yahoo auction, Retropie, a couple of Li-Ion scavenged from an old PC and here we go!
Points of interrest
The power requirements of the RaspiApparently, something like 720mA at 5v with HDMI and 4 cores loaded is the mark. That means roughly 1A to source from a Li-Ion at 3.7v, which is doable totally. One 2200mAh should give us 30 mins of power under load, with 2 of them it's 1h+ (finger in the air estimation ⓒ) ...
Edit: after the testing, depending on what you do it might be enough power or not: we often have the "yellow lightening bolt" in the top right corner", but in the menus of Emustation, not while playing Arcade of SNES games (I guess that N64 would make it appear but did not test).
The power management of the RaspiWe just wnat the "raw power" of the Raspi 3, not the wifi or ethernet. So we need to cut all that is useless to save the batteries. So we want to stop:
in /etc/modprobe.d/raspi-blacklist.conf #wifi blacklist brcmfmac blacklist brcmutil #bt blacklist btbcm blacklist hci_uartFor ethernet Internet says this:
ip link set eth0 down
Bill of materials
PicturesSee here : https://seburan.wordpress.com/2017/07/03/retropie-wireless-arcade-box/
All content on this site is shared under the MIT licence (do what u want, don't sue me, hat tip appreciated)
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