inspired by the build of @banjokazooie i build my own retropie console based on a Wii U Gamepad case. I was able to source a faulty Zelda unit from ebay. not in best condition, but acceptable.
Most details can be found at banjokazooie thread. only minor changes at my mod. i use a 6.2" display from aliexpress. this fits nearly perfect with the original frame. i use 3 x 2800mAh lipo battery on the back of the display, helders retropsu and the powerboard made at osh park.
sourcing the parts took quie a while. today i would chosse a better display. maybe a 2k display. the contrast will be much better. also viewing anlge. and the most important part: they are much thinner! the inner look very ugly, i made better mods at past. but this one is "grown" and everthing fits inside.
i had a Ultimems HD301-A2 laying arround from a other project. Goal was to include it in this mod. the space was just enough. bigger problem was switching between the internal display and the beamer. but you can setup a different resolution for each port at the config.txt:
Code: Select all
#Internal Display on HDMI Port 0
[HDMI:0]
hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
# MEMS-Beamer on HDMI Port 1
[HDMI:1]
hdmi_group=2
hdmi_mode=85
the ultimems beamer is not razor sharp, but good enough for playing retro games. it have one unique advantage: you never have to refocus the screen. it is always sharp, no matter what distance you are using. this is a true laser beamer. the light beam of three laser diodes are projected to a mems device (very similar to a dlp devices but 2d and not 1d capable). more to read here:
http://www.ultimems.com/en/index.html#aboutus
Some hints:
- when using helder retropsu internal charge unit, the pi will be powered while charging. not very good, but with an external charging board no problem
- minty battery monitor or helders onefor all software is not running out of the box solution can found here:
viewtopic.php?t=9693
- i use the internal audio from the pi 4. i´m quite happy with this, but i also have to use a small amp
one question to all: i use the teensy as keyboard/joystick. this one is mapped to the first player. is it possible that a map my sn30 pro also to the first player so i can use both parallel?
as i know at the moment i can re-configure the input for player one at the retroarch input configuration menu. but i can only switch between teensy and sn30, but not for use both at the same time for player1 !
Finnished inside:
And now with the ultimems laser beamer in action. Picture size is about 40 inches. room was darken a little bit: