1Pc Infrared Obstacle Avoidance Sensor Photoelectric Adjustable 3-80cm for Robot

E18-D80NK-N Infrared Obstacle Avoidance Photoelectric Sensor, Adjustable 3–80cm IR Proximity Switch, NPN Digital Output Sensor with DuPont Connectors for Robot Smart Car Obstacle DetectionProduct SpecificationsProduct Name: E18-D80NK-N Infrared Obstacle Avoidance Photoelectric SensorOutput Type: NPN-type photoelectric switch, digital outputOperating Voltage: 5V DCOperating Current: 10–15mADrive Current: 100mASensing Distance: Adjustable 3–80 cmBeam Angle: 15°Sensor Dimensions: Diameter 18 mm; length 45 mmLead Length: 20 cmConnector Type: DuPont connectorsTypical Applications: Robot obstacle avoidance, smart car obstacle detection, object detection, automation equipment, photoelectric sensing projectsPin DescriptionBrown Wire: VCC, power supply positiveBlue Wire: GND, groundBlack Wire: OUT, signal outputFrequently Asked QuestionsQ1: Is this a digital or analog sensor?This is an NPN-type photoelectric switch. The output states are digital states of 0 and 1, corresponding to high and low levels in digital circuits.Q2: What is the output level when a target object is detected?When a target object is detected, the sensor outputs a low level. In the normal state without a detected target, it outputs a high level.Q3: Can it be connected to a microcontroller I/O port?Yes. It can be connected to a microcontroller I/O port by adding a pull-up resistor to the output line.Q4: What pull-up resistor value is recommended?The pull-up resistor value is generally around 1KΩ.

• Adjustable Infrared Photoelectric Sensor: The E18-D80NK-N is an integrated infrared photoelectric proximity sensor that combines transmitting and receiving functions in one compact unit. It is designed for object detection, proximity sensing, robot obstacle avoidance, automatic control systems, counting devices, and DIY electronics projects.
• 3–80 cm Adjustable Detection Range: This sensor supports an adjustable sensing distance from approximately 3 cm to 80 cm. The detection distance can be tuned using the potentiometer knob on the rear of the sensor, allowing users to set the range according to different installation conditions and project needs.
• Modulated IR Light for Reduced Interference: The emitted infrared light is modulated before transmission, and the receiver demodulates the reflected signal for output. This design helps reduce interference from visible light and improves detection stability in typical indoor automation and robotics applications.
• Long-Range Detection with 15° Beam Angle: Equipped with a lens structure, the sensor can detect objects at longer distances than many standard reflective sensors. The 15° beam angle helps focus detection toward the target area. Actual maximum sensing distance may vary depending on object color and reflectivity, with white objects generally detected farther than dark objects.
• Easy Installation with DuPont Connectors: Operating at 5V DC with a typical working current of 10–15mA, the sensor is easy to connect to microcontrollers and control boards. The 18 mm diameter, 45 mm length body, 20 cm lead wire, and DuPont connectors make it convenient for robot cars, automation equipment, and embedded sensing projects.