High-concerned chemical : none
is_d : Yes
Theory : Hall Sensor
Material : Metal
Type : Optical-Electronics Sensor
Output : Switching Transducer
Origin : Mainland China
Use : Position Sensor
KY-032 Infrared Obstacle Avoidance Sensor Module 4pin 2-40cm Adjustable for Arduino Smart Car Robot DIY
Key Features & Benefits
Adjustable Range: 2-40cm detection distance, adjustable via potentiometer.
4-Pin Interface: VCC, GND, OUT, EN – 3.3V/5V compatible.
️ Enable Control: EN pin for power saving.
️ Frequency Adjustment: Dual potentiometers for fine tuning.
Fast Response: Ideal for obstacle avoidance, line tracking, drop prevention.
Wide Compatibility: Arduino, STM32, 51 MCU.
Product Description
Need obstacle avoidance for your smart car? KY-032 infrared sensor module is the perfect choice. Detection range 2-40cm adjustable, TTL output (0=obstacle, 1=clear). Enable pin for power control. Dual potentiometers for tuning. Perfect for robot obstacle avoidance, line tracking, counting.
Quick Start Guide & Important Tips
️ Important:
Enable: Short EN to GND (jumper cap) for normal operation.
Adjustment: Turn 502 pot fully clockwise, then adjust 103 pot against white wall for max range.
Dark objects: Reduce detection distance.
Power: 3.3-5V only.
Arduino Code
int ledPin = 13;
int sensorPin = 3;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(sensorPin, INPUT);
}
void loop() {
if (digitalRead(sensorPin) == LOW) {
digitalWrite(ledPin, HIGH);
} else {
digitalWrite(ledPin, LOW);
}
delay(50);
}
Common Questions
Short detection range?
Adjust potentiometers, check power, dark objects reduce range.
Output always LOW?
Check EN pin grounded, no obstacle in range, adjust sensitivity.
Line tracking?
Works but TCRT5000 is better for line tracking.
Specifications
Voltage: 3.3V – 5V
Current: 20mA
Range: 2-40cm adjustable
Output: TTL (0/1)
Angle: 35°
Interface: 4pin
Size: 45×11mm
Note: Manual measurement, allow 1‑3mm error. Colors may vary.
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