The infrared barrier module detects the surfaces and when object moves near the sensor it will response. This module having a pair of infrared transmitter and receiver. Transmitter launch certain frequency infrared signal and receiver receive the reflection of the infrared signal. After processing through the comparator circuit gives the signal output as a trigger.
Infrared Barrier Module
2cm ~ 60cm
Trigger Output (0 and 1)
3.3V ~ 5V
Potential meter - to adjust the sensitive(Distance) of the sensor
Operating Temperature Range - 0C to 50C