Infrared Reversing Range Sensor Radar Kit DIY

Infrared reversing radar is composed of multi- resonance circuit, infrared signal transmitting and receiving circuit, infrared signal amplification and voltage comparison circuit.

It has the characteristics of simple circuit, low cost and stable circuit operation, and is widely used in various ranging occasions.

The time base circuit NE555 and the surrounding components constitute a multi-vibrator to generate infrared wave signals, which are output by the third pin of IC2 and driven by the infrared transmitting tube HFS to transmit infrared signals.

The emitted infrared is signal is reflected back by the object and received by the infrared receiving diode.

The voltage comparator circuit is amplified by the LM324 and sent to the LM324 to drive the LED to indicate the reversing distance range.