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Transmitter launch a certain frequency infrared, when meet obstacle in the detection direction, the infrared receiver is reflected back by the receiver tube, after processing through the comparator circuit, the green indicator light will illuminate while the signal output interface output digital signal (a low-level signal) can be adjusted via potentiometer.
- The module detects the distance 2 ~ 30cm, detection angle 35 °,
- The sensor module output port OUT can be directly connected with the microcontroller
- IO port can also be driven directly to a 5V relay
- It uses a stable comparator which is LM393
- The module is supplied with 3-5V DC power
- OUT : digital output interfaces (0 and 1);
Watch this video it will give you a clear idea about this product.
