Description
The KY-032 Infrared Obstacle Avoidance Sensor Module uses an infrared transmitter and receiver to detect objects in its path. When an obstacle is detected, the module outputs a digital HIGH/LOW signal, which can be read by microcontrollers such as Arduino, ESP32, or STM32. The onboard potentiometer allows adjustment of sensitivity and detection range. The module is widely used in line-following robots, obstacle-avoiding robots, and other automation systems requiring proximity sensing.
Key Features
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4-pin module: VCC, GND, DO (Digital Output), AO (Analog Output)
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Detection distance: adjustable via onboard potentiometer (~2–30 cm)
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Compact, breadboard-friendly design
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Digital and analog outputs for flexibility
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Low power consumption, easy microcontroller interface
Specifications
| Feature | Details |
|---|---|
| Operating Voltage | 3.3–5V |
| Output | Digital (DO), Analog (AO) |
| Detection Distance | 2–30 cm (adjustable) |
| Current Consumption | ≤20 mA |
| Dimensions | 32 × 20 × 15 mm |
Applications
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Obstacle-avoiding robots and smart cars
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Line-following robotic projects
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DIY automation and smart devices
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Proximity detection in sensors and alarms
Compatible Boards / Circuits
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Arduino (Uno, Mega, Nano)
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ESP32 / ESP8266
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STM32 / Raspberry Pi
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Can interface with LEDs, buzzers, relays, and other output modules
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