1.Forefront of a switch module is installed there is a collision, the module output low, there is no collision, the output high.
2 module aside M3 mounting holes to facilitate fixed in a small car.
3 Module size: 2.5cm * 1.9cm
4 lights with a switch, there is a collision, lights, no collision, lights out.
Module Pin Description：
1 vcc 3v-12v power supply
2 gnd connected to power ground
3 OUT output high and low