shop/ buttons-switches/ tiny ir sensor adjustable 3-100cm -

Add Infrared Detection to Your Next Project

The Infrared Tiny Adjustable 3 - 100cm Sensor Switch is a button or switch input module designed for presence sensing, short-range detection, and touchless automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Range: 3-100cm adjustable; Power supply: 3.8v-5.5v.

Important: Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.

Why you’ll love it

  • Sensing range: 3-100cm adjustable
  • Power range: 3.8v-5.5v
  • Current draw: 6mA
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
  • Project-ready sensing: obstacle detection, touchless triggers, object counting, and simple automation

Compare with similar products

Product Sensor style Standout
Infrared Tiny Adjustable 3 - 100cm Sensor Switch button or switch input module Current item
Distance Sensor 10-80cm GP2Y0A21YK0F Sharp infrared distance sensor with digital output adjustable sensing range, infrared sensing
Infrared Sensor Adjustable E18-D80NK infrared proximity sensor with digital output adjustable sensing range, infrared sensing
TCRT5000 Infrared Reflectance Obstacle Avoidance Module infrared proximity sensor with digital output infrared sensing

What you can build

This sensor is a good fit for touchless dispensers, object counters, door triggers, small robots, and presence alarms.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product Infrared Tiny Adjustable 3 - 100cm Sensor Switch
Range 3-100cm adjustable
Power supply 3.8v-5.5v
Current(5v) 6mA
Category proximity presence sensors

Wiring & usage notes

Check the pin labels on the Infrared Tiny Adjustable 3 - 100cm Sensor Switch and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.

What’s in the box

1 × Infrared Tiny Adjustable 3 - 100cm Sensor Switch

Frequently Asked Questions

What does the Infrared Tiny Adjustable 3 - 100cm Sensor Switch measure? It is designed to measure nearby objects, remote IR signals, or motion.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

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Notes from the bench

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