01/15/2021 at 18:22 •
We came up with a simple and rather generic PCB design, produced a prototype set - and assembled one to test the whole concept. We never dealt with this kind of sensors before, so most likely we'll change a lot as we go - possibly the whole approach - but the first step was made.
Unfortunately we didn't have soldering paste at hand, so had to put solder on each pad, then cover them with flux again, and then place components - even without paste, hotplate is still more convenient than soldering them one by one.
Anyway, here is a video of the process: