Hardware for Soil Sensor
The STEMMA soil sensor is secured to the sensor plate using 2 x M2.5 x 10mm long screws and hex nuts.
Install Soil Sensor
Place the STEMMA soil sensor over the sensor plate. Line up the two mounting holes on the PCB with the holes on the plate. Insert two M2.5 x 10mm long screws through the mounting holes.
Secure Soil Sensor
Insert and fasten an M2.5 hexnut onto the threads of the screws. Finger tighten the two hex nuts.