The Radio Programmer is a black-box unit that automatically uploads a firmware to a device (radio) when connected.

This unit is based on a Raspberry Pi and a USB hub which connects to the devices. It detects the device connected and starts the firmware upload immediately.

Udev is used to auto detect the devices when connected.

Put this file in /etc/udev/rules.d/90-compass.rules

# Run script when ESP device is connected
ACTION=="add", SUBSYSTEM=="tty", KERNEL=="ttyUSB*", RUN+="/opt/CG3/udev.sh $kernel"

Put this file in /opt/CG3/udev.sh

#!/bin/sh

esptool.py -p /dev/$1 chip_id >> /tmp/udev.log
#esptool.py -p /dev/ttyUSB0 --baud 460800 write_flash -fm dio -fs 16m 0x00000 /opt/CG3/firmware.bin

Remember to make the file executable chmod +x /opt/CG3/udev.sh