Crowpi2——Question about Toggle switch

Question： The toggle switch is on the left side of the CrowPi2 fan, I dial the switch to A, A is Sensor Connect, what kind of sensor is it?

Answer： Dialing to the left means that you are connected to the CrowPi2's onboard module, and the "sensor" represents the sensors and modules on the CrowPi2's PCB. When you dial the toggle switch, you will need to restart the CrowPi2 learning software or system to allow the settings to take effect.