Description:
1, VCC 3.3V-5V external voltage (can be directly connected to 5v and 3.3v MCU MCU)
2, GND GND External
3, OUT small board digital output interface (0 and 1)
4, comparators LM393, stable
5, the module can be 3-5V DC power supply. When the power is turned on, the red power indicator lights
6, with the screw holes 3mm, easy fixed installation;
7, board size: 3.2CM * 1.4CM
8, each module has been shipped threshold comparator voltage adjusted by potentiometer good, non-special case, do not adjustable potentiometer.
