IR Break Beam Sensor - 3mm LEDs

Item number 53624 Brand Adafruit Model 2167 Share
IR Break Beam Sensor - 3mm LEDs



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IR Break Beam Sensor - 3mm LEDs.Infrared (IR) break-beam sensors are a simple way to detect motion. They work by having an emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light. When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know.Compared to PIR sensors, breakbeams are faster and allow better control of where you want to detect the motion. Compared to Sonar modules, they're less expensive. However, you do need both emitter and receiver on opposite sides of the area you want to monitor.

This is the 3mm IR version. It works up to 25cm / 10". You can power it from 3.3V or 5V, but 5V will get you better range and is what we suggest. The receiver is open collector transistor output which means that you do need a pull up resistor if you want to read a digital signal off the signal wire. Most microcontrollers have the ability to turn on a built in pull up resistor. If you do not, connect a 10K resistor between the white wire of the receiver and the red wire. If you want to control a relay or LED or whatever, it can sink up to 100mA to ground.

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Brand information
Brand Adafruit
Model2167
More infoIR Breakbeam Sensors
Adafruit
€ 5,95€ 4,95 Excl. VAT (NL)
Ordered before 23:59, shipped today. ... pieces in stock Almost sold out
Shipped from € 3,50 (NL) 30 days cooling-off Excellent service

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Customer questions

Q The Netherlands Guus van de WouwCan I control a bistable relay with this IR sensor? This includes train detection and control of a level crossing. Answer this question

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