{"title":"Arduino Infra-red obstacle sensor","handle":"arduino-infra-red-obstacle-sensor-78908500-d082-494e-bdb3-52ab910d47d7","url":"/products/arduino-infra-red-obstacle-sensor-78908500-d082-494e-bdb3-52ab910d47d7","description":"The infrared obstacle sensor is a compact IR proximity module designed for robotics and automation projects. It detects obstacles within a 2–40 cm range and outputs a TTL-level signal, making it easy to integrate with Arduino and other microcontrollers.\n\nThe detection distance is adjustable via a multi-turn potentiometer, and the sensor features an enable pin for programmatic control. Operating on 3.3–5V, it's compatible with both 3.3V and 5V logic systems.\n\nKey Features\n\n\nAdjustable Detection Range – 2–40 cm, tuneable via multi-turn potentiometer\n\nTTL Output – Low when obstacle detected, high when clear\n\nWide Voltage Range – Works with 3.3V and 5V systems\n\nEnable Pin – Programmatically enable or disable the sensor\n\n35° Effective Angle – Focused detection cone for precise obstacle sensing\n\nCompact Size – 28 × 23 mm\n\n\nSpecifications\n\n\nInterface – 4-wire (GND / VCC / Signal / Enable)\n\nWorking Voltage – DC 3.3–5V\n\nWorking Current – ≥ 20mA\n\nDetection Distance – 2–40 cm\n\nEffective Angle – 35°\n\nOperating Temperature – -10°C to +50°C\n\nBoard Size – 28 × 23 mm\n\n\nPinout\n\n\n+ – Power (3.3–5V)\n\nGND – Ground\n\nOUT – Signal output (TTL)\n\nEN – Enable pin\n\n\nExample Code\n\n\n\n⚡ Arduino\n\nvoid setup() {\n  Serial.begin(9600);\n  pinMode(9, INPUT); // Sensor output pin\n}\n\nvoid loop() {\n  Serial.print(\"Sensor: \");\n  Serial.println(digitalRead(9));\n  delay(500);\n}\n\n\nIdeal For\n\nRobot obstacle avoidance\nProximity detection systems\nAutomated line-following or maze-solving robots\nArduino and microcontroller beginner projects\n\n\nPackage Contents\n\n1× Infrared obstacle sensor\n","vendor":"Little Bird","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5435,"title":"Default Title","sku":"LB-LR0006","price":3.37,"compare_at_price":7.94,"on_sale":true,"in_stock":true,"available_quantity":84,"option1":"Default Title"}]}