PiDGC v2

Raspberry Pi based Digital Gauge Cluster by Josh Ellis / josh@ellis.sh

Please Note: This library is designed for the Raspberry Pi 3B, a custom built PCB, and a 1280x480 display. It will look weird on other displays and won't function without those components.

Update Information

This repository is a total rewrite of the PiDGC codebase. The kotlin hardware interface has been removed, and all code is now in either the microcontroller (Teensy 4.1) or the Qt application running on the RPi. These changes were made to simplify the system and significantly shorten the boot time.

Acknowledgements

In order to reduce the boot time significantly, this version of the gauge cluster uses buildroot. A fork of the configuration made by Furkan Tokaç is the basis of this build, so many thanks for the reduced boot time go to him! Please go and check out his work, it's great.

Software Steps

Since this is a buildroot build and no binaries are provided, you must build the image for the Raspberry Pi 3 yourself. This isn't a complicated process, but does require either a Linux system or WSL2.

These are high level steps only. If you have questions about how to do any step, please Google it.

1. cd into the buildroot directory
2. make pidgc_defconfig
3. make -j8
4. ./build-rpi3-qt.sh
5. Setup Qt Creator to use the qmake found in buildroot/output/qt/qt-everywhere-src-*/aaaout/bin/qmake and compile for the Raspberyr Pi 3.
6. Open source/display in Qt Creator and compile for RPi3.
7. Run make -j8 again. This should pull in the rpi3-display/display binary and create the sdcard.img in buildroot/output/images/sdcard.img.
8. Burn the image file to a micro SD card.
9. All done!

Custom PCB

The PCB was designed in EAGLE, and is located in files/PiDGCv2-pcb