Firmware
Write a new image, or find out why the bus is silent.
STM32 DFU Tool
Write a .dfu image to a Melexis IO board over WebUSB
ESP32 ESP Tool
Write a merged image to an ESP32 over its own USB
WiFi
Put an ESP32 board on a network and keep it there
I2C Debug
Scan the bus, drive the lines, trigger a scope
A board written here keeps nothing of what it had: an image carries its own bootloader and
partition table. The images that ship with the site are in bin/, and a file of
your own is just as welcome.
The other two are here because they belong to the same half-hour: a board that has just been written is the one about to be put on a network, and the one most likely to be asked why a sensor says nothing — where the answer is usually the wiring, the address or the bus speed rather than the firmware.