The MOC7811 is an infrared-based optical sensor. It contains an IR emitter and receiver pair mounted facing each other. It can be used with encoders to detect wheel speed, angle, etc. When the light emitted by IR LED is blocked because of alternating slots on the encoder disc logic level of the..
Vibration sensor module alarm Motion sensor module vibration switch SW-420 module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can adjust using an onboard potentiometer. When this no vibration, this module..