SPECIFICATIONS

Master Navigation: The Adjustable KY-032 IR Sensor for Robot Obstacle Avoidance & Precise Line Following.

Key Features & Benefits:

🤖 Dual-Mode Intelligence: Excels at both obstacle detection (2-40cm range) and high-precision black line tracking, making it a versatile core sensor for autonomous robots and smart cars.

🎛️ Precision Dual-Potentiometer Tuning: Two multi-turn trimmers allow independent adjustment of IR emission frequency (38KHz tuning) and detection sensitivity threshold, enabling optimization for any surface or line contrast.

🔌 4-Wire Design with Enable Control: Beyond basic 3-wire sensors, the Enable (EN) pin allows MCU-controlled power cycling for energy saving in battery-powered projects.

⚡ Wide 3.3V/5V Compatibility: Works seamlessly with Arduino, ESP32, Raspberry Pi, STM32 without logic level shifters. Plug-and-play voltage flexibility.

🛡️ Modulated IR for Reliability: Uses 38KHz modulated infrared to resist ambient light interference, ensuring stable operation under indoor lighting or in challenging environments.

Product Description:
Give your robot vision. The KY-032 isn't just an obstacle sensor; it's a programmable sensing node. Whether you're building a maze-solving robot, an automated line-follower car, or a smart inventory bot, its adjustable range and digital output provide the reliable environmental feedback your project needs.

🚨 Critical Setup & Usage Warnings:
【AVOID FRUSTRATION – READ BEFORE YOU BUY & BUILD】

YOU MUST PROVIDE CONNECTION ACCESSORIES! This is a bare module. It does NOT include wires or jumper caps. To use it, you must have:

4 x Female-to-Female Dupont Wires (for VCC, GND, OUT, EN).

1 x 2-Pin Jumper Cap or a short wire to bridge the EN pin to GND. Without this bridge, the sensor will NOT work.

DISTANCE IS MATERIAL-DEPENDENT: The 2-40cm range is for highly reflective (white) surfaces. For dark or non-reflective (black) objects, the effective range can be as low as 2-5cm. Always test with your actual target.

CALIBRATION IS REQUIRED FOR LINE FOLLOWING: For best line tracking:

Mount sensor 1-2cm above ground, pointing down.

First, adjust the 502 potentiometer (FREQ) over a white surface until the output is most stable (LED flickers least).

Then, adjust the 103 potentiometer (SENS) over the black line to get a clear LOW signal, while maintaining HIGH over the white background.

ENABLE PIN FOR POWER SAVING: For battery projects, connect EN to a microcontroller GPIO. Set the pin LOW to activate the sensor, HIGH to put it to sleep, drastically reducing idle current.

AVOID DIRECT SUNLIGHT & HIGH GLOSS: Strong ambient IR (sunlight) or highly reflective floors can saturate the receiver, causing false triggers or reduced sensitivity. Test in your intended environment.

Specifications:

Sensor Type: Digital Infrared Reflective

Operating Voltage: 3.3V - 5V DC

Detection Range: Adjustable, 2cm - 40cm (Typical for white object)

Output Signal: TTL Digital (Low: Object Detected, High: Clear)

Output Current: 100mA (Sink)

Adjustment Pots: Frequency (502), Sensitivity (103)

Enable Control: Yes (Active LOW)

Interface: 4-pin (VCC, GND, OUT, EN)

Module Size: Approx. 45mm x 16mm x 10mm

Package Includes:

1 x KY-032 Infrared Obstacle Avoidance Sensor Module