[User Documentation](https://github.com/rusefi/rusefi/wiki/GDI4)

https://rusefi.com/forum/viewtopic.php?f=4&t=1337


![x](https://github.com/rusefi/rusefi/wiki/Hardware/GDI/rusefi-gdi4-rev-a.jpg)


## HOWTO Update Firmware

UART route https://www.adafruit.com/product/954