razer.93 wrote: ↑
Tue Dec 05, 2017 2:31 pm
Here I'm showing my second build based on a raspberry pi 3 and a DPI screen. I have already built a GBZero with a standard composite screen I have never been satisfied of, so while designing this mk3 (yes, it's just for the raspi3) a dpi screen was kinda a must-have feature.
With the idea of building all around the screen I had to sacrifice some feature from the previous version such as the GPIO buttons, I2C and serial.
Here's a list of feature I'd like to implement in this build:
- A powerful RPi3
- DPI 18bit (unless I figure out an alternative way to the graceful shutdown pin necessity)
- Arduino PRO micro keyboard/peripherals managment
- Still include RTC support via I2C
- Battery meter of course
- Adjustable backlight intensity via key shortcut (still problems on that)
- Fancy status led(s)
I would need help to figure out how to driver a boost-converter with a digital potentiometer since I burned two boost converters last night with a trivial trimmer->digital pot replacement
Any suggestion would be appreciated!
I have almost all the pieces I need, I'm just waiting for the LCD, the audio amp and the 3D-printed frame, this is the progress so far:
I cut the case, flattened the rpi3 and setup the graceful shutdown mechanism, wired the pro micro to the keypad and to the rpi itself; figured out how manage the DPI and the serial communication.
Updates as soon as the LCD and the boost converter replacement arrive!
Here it is:
Completed with adapded/modified OSD, key shortcuts and automatic/hot-plug HDMI clone script (automatically detects when cabe is inserted).
If someone is interested here it's the sketch I'm using on the ProMicro
If someone is interested I published a little guide for display mirroring
If someone is interested I made and published the SUPER free OSD
Thank you all for the support!test.pngtest1.png