You will need:
- a GCC ARM cross-compilation toolchain
- dfu-util (or equivalent)
Convert your image to a 24x24 GIF/lossless image. Run ./graphics/convert_gif_to_colour_array.py picklerick.gif picklerick > Inc/picklerick.h, which will give you an include file containing the picklerick array of pixels suitable for the display.
Add #include "picklerick.h" to a header file such as Inc/welcome_smileys.h and then point to the array in the code. Good examples (including the easter egg animation) are in Src/welcome.c.
make clean && make
- Connect the USB port on the badge to your PC
- Power off the badge
- HOLD THE BOOT BUTTON WHILE POWERING UP THE BADGE
dfu-suffix -a build/round1.bin && sudo dfu-util -a 0 -d 0483:df11 -D build/round1.bin --dfuse-address 0x8000000
Feel free to submit PRs! I will respond as soon as I am able.
The hardware repo can be found here