() 해외배송 가능
판매가 | |
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소비자가 | 0원 |
적립금 |
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무이자할부 | |
제조사 | Adafruit |
원산지 | |
자체상품코드 | SEN-0021 |
배송비 | 3,300원 |
수량 | |
국내/해외배송 | |
SNS 상품홍보 | |
QR코드 | |
QR코드 보내기 |
수량 |
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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 5mm IR version. It works up to 50cm / 20". 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
Check out our IR breakbeam tutorial for how to get started quickly
We also carry a 3mm version that works for slightly shorter distances.
https://youtu.be/qm-LZEEMvho