TCRT5000 IR Sensor Module | Obstacle Avoidance – Reflective Sensor

The TCRT5000 IR Sensor Module is a reflective infrared obstacle avoidance and proximity detection sensor operating from 3.3V to 5V DC at 15mA working current, detecting objects and surfaces from approximately 2cm to 30cm by emitting infrared light and measuring the reflected intensity from nearby objects. The tcrt5000 ir reflective sensor provides both a digital output (DO) that switches state when an object enters the detection threshold, and an analog output (AO) proportional to reflection intensity — making it usable as a digital obstacle alert switch and an analog proximity gauge simultaneously.

The ir sensor pinout on this module exposes four connections — VCC, GND, DO (digital output), and AO (analog output) — and per the ir sensor datasheet the digital threshold is set by an onboard trimmer potentiometer that adjusts the comparator reference voltage. Rotating the potentiometer clockwise increases sensitivity and reduces the trigger distance, while counter-clockwise rotation increases the effective detection range up to 30cm. The tcrt5000 reflective ir sensor module mounts easily on robot chassis and breadboard builds with standard 2.54mm header pins.

the TCRT5000 IR sensor cannot reliably detect transparent objects such as glass bottles or clear plastic — the IR beam passes through transparent materials without reflecting, making the sensor appear as if no object is present.StemVolt provide this module is suitable for makers building obstacle avoidance systems and practical embedded proximity detection electronics projects.

Related Products:

• Checkout the TCRT5000 Reflective IR Optical Sensor

Features:

• Reflective IR detection for both obstacle avoidance and surface sensing
• Dual DO and AO outputs for digital and analog simultaneous use
• Adjustable potentiometer sets detection distance from 2cm to 30cm
• Four-pin 2.54mm header suits breadboard and chassis direct mounting
• 3.3V to 5V 15mA low current for battery-powered robot builds

Technical specifications:

 Applications:

• TCRT5000 IR Module used for Arduino robot obstacle avoidance system
• College project uses tcrt5000 ir sensor for proximity object detection demo
• Robot uses tcrt5000 ir reflective sensor for table edge drop detection
• Conveyor uses tcrt5000 reflective ir sensor module for part presence check
• STEM robot uses ir sensor for front-mounted collision avoidance detection

Package includes:

• 1 x TCRT5000 IR Sensor Module