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  1. Parts
  2. /Components
  3. /Passives

T-Slot Photo Interrupter

OverviewAlternates
T-Slot Photo Interrupter - Adafruit - 3986

U-shaped plastic optical interrupter with an integrated IR LED and IR phototransistor across a slot gap. Output goes low when an object breaks the IR beam across the slot; no cable included.

Parts tray full · 5 max · remove a part to add another
T-Slot Photo Interrupter — Adafruit — 3986

Offers

  • Adafruit$2.95
  • ?DigiKey$3.19

Offers

  • Adafruit$2.95
  • ?DigiKey$3.19

Pinout

Logical pinout · physical placement not verified
T-SLOT PHOTO INTERRUPTVCCOUTLGND
  • VCC(+)

    power input for the sensor logic/output circuit

    Type · PowerVoltage · 5-24V logic circuit power
  • LL

    IR LED configuration pad; Adafruit says to tie to VCC for normal use

    Type · Control
  • OUTOUT

    NPN open-collector phototransistor output; requires pull-up resistor to controller logic level

    Type · GPIO
  • GND(-)

    common ground

    Type · GroundVoltage · 0V
PinPositionTypeFunctionVoltage
VCC(+)Powerpower input for the sensor logic/output circuit5-24V logic circuit power
LLControlIR LED configuration pad; Adafruit says to tie to VCC for normal use
OUTOUTGPIONPN open-collector phototransistor output; requires pull-up resistor to controller logic level
GND(-)Groundcommon ground0V
Logical pinout · physical placement not verified
T-SLOT PHOTO INTERRUPTVCCOUTLGND

Pin details

4 connections
  1. VCC

    power input for the sensor logic/output circuit

    PowerVoltage · 5-24V logic circuit power
    (+)
  2. L

    IR LED configuration pad; Adafruit says to tie to VCC for normal use

    Control
    L
  3. OUT

    NPN open-collector phototransistor output; requires pull-up resistor to controller logic level

    GPIO
    OUT
  4. GND

    common ground

    GroundVoltage · 0V
    (-)

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