It’s open source, and the only thing you need to update your oven is a TTL/UART interface ... required to update the firmware is a serial/USB/UART converter. A much better solution than ...

Before parts like the ultra cheap CH340 and CP2102 became common, if you needed to turn a USB cable into a TTL UART device, “an FTDI” (probably an FT232RL) was the way to make that happen.

It can be connected through UART (TTL, RS232), USB, as well as Ethernet, and is available as a PCB module and with Desktop housing. TWN4 MultiTech 2 is also compatible with over 60 of the most common ...