His pump had an expired controller board, so he’s created an open-source controller of his own centred upon an STM32. Intriguingly he mentions its potential use as “I want to do more stuff ...

These devices have key drawbacks. Water level indicators require manual pump operation and often waste power as multiple LEDs ...

The pump and controller user manuals offered only sketchy ... he implemented it on a 128 element FPGA board. Considering how expensive the TMP was, he wisely decided to first try out his driver ...