What we want to do
Record Coqui sensor measurements.
How to add the jack
We've used the Thonkiconn 3.5mm jack you can find on the internet an soldered two wires to facilitate it's introduction in the protoboard.
Plug the wires as the speaker is plugged:
·Red wire to Pin#3
·Green wire to Ground.
Questions and next steps
Test the recording using a known conductivity product to have a stable value that can be used as a sort of calibration.
Do it with kids this summer ;D