Connecting a controller to the PRONAMIC tipping bucket
The PRONAMIC PCB has a terminal strip with four connection (two outlets). The two outlets are marked as 1-2 and 3-4. The outlet 1-2 is connected by a reed switch and the state is Normally Closed (NC). The outlet 3-4 is connected by another reed switch and the state is Normally Open (NO). When the tipping bucket tips, then the reed switches changes state.
See the following guide for connecting the PCB to a IoT Device/Microcontroller
Connect your IoT Device/Microcontroller with wires to the following screw terminals:
Screw terminal 1-2 (Red arrow in Figure 1) if the desired state of the reed switch is Normally Closed (NC).
Screw terminal 3-4 (Green arrow in Figure 1) if the desired state of the reed switch is Normally Open (NO).
Configure the software to add the calibration value (either; 0.1 - 0.2 - 0.25 - 0.5 - 1 mm) each time the tipping bucket tips, and the reed switch changes state from open to closed or closed to open.
OBS: Remember to check if your IoT controller has a built-in pull-up resister.