Devlog #05

The design step is finished!

I fully designed the PCB. The precision section is separated from the rest, PSU is far away and everything looks nice.

Digital section

I added an STM32, it tracks uptime, manages calibration data, measures temperature, measures heater current and all 15V rails. It can be connection to a PCB via USB.

Silkscreen

I left a few text fields on the silkscreen in order to write down initial LM399 voltage and other stuff: temperature during calibration, date and Serial Number.