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  1. Parts
  2. /Sensors
  3. /Distance sensors

Laser Break Beam Sensor

OverviewWiringAlternates
Laser Break Beam Sensor - Adafruit - 2122

Laser emitter and receiver pair for break-beam object detection; the receiver outputs a signal change when the beam is interrupted. Self-contained alignment simplifies installation compared to separate laser/sensor setups.

Parts tray full · 5 max · remove a part to add another
Laser Break Beam Sensor — Adafruit — 2122

Offers

  • Adafruit$17.50

Offers

  • Adafruit$17.50

Pinout

  • Red wire

    5VDC supply lead for the break-beam sensor; Adafruit states to connect 5VDC to the red wire and that 3V will not work.

    Type · powerVoltage · 5VDC
  • Black wire

    Ground lead; Adafruit states to connect Ground to the black wire.

    Type · groundVoltage · 0V
  • Blue wire

    Open-collector style output lead. Adafruit states to use a pull-up on the output pin; when the beam is broken, the blue output wire pulls down to ground, and with the pull-up it reads high when the beam is clear.

    Type · signalVoltage · Pull-up voltage chosen by host; output pulls to ground when beam is broken
PinPositionTypeFunctionVoltage
Red wirepower5VDC supply lead for the break-beam sensor; Adafruit states to connect 5VDC to the red wire and that 3V will not work.5VDC
Black wiregroundGround lead; Adafruit states to connect Ground to the black wire.0V
Blue wiresignalOpen-collector style output lead. Adafruit states to use a pull-up on the output pin; when the beam is broken, the blue output wire pulls down to ground, and with the pull-up it reads high when the beam is clear.Pull-up voltage chosen by host; output pulls to ground when beam is broken

Start wiring

I2C · SPI · Single data line · 3.3 – 5 V · Breakout

Pimoroni describes its VL53L1X breakout as a compact time-of-flight distance sensor with I²C address 0x29, 4–400 cm range, 27° field of v…

Module pins: Red wire, Black wire, Blue wire. Schematik maps them to your board in the app.

Distance sensors

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