Hacker News Reader

Anyone knows what they mean by "For instance, we have an internal board that serves as a useful I2C debugging probe and has 8 kiB of RAM and 32 kiB of flash.".

What could that interesting thing be? An inline-I2C sniffer perhaps? Or an interface board to inject i2c commands? Or something else?

View on HN

I believe this is referring to a little board with an STM32G031 part that exposes a PMOD i2c interface and we use it for programming serial numbers into FRUID EEPROMs on the manufacturing line. It runs hubris, can be controlled by humility via SWD, and has just enough space to do this function. We have other dev boards using larger STM32 parts and didn't want to consume those for our manufacturing line stations.

Given the size of the part on here, and the limited I/O, it's not very useful outside of this use-case but works great here.

Reply on news.ycombinator.com