QTR-1A Infrared Sensor (2 Pieces)

QTR-1A Infrared Sensor (2 Pieces)

This sensor board has 1 IR LED/phototransistor pair on it. The sensor provides an analog voltage output based on its reflectance value. The phototransistor is connected with a pull-up resistor (usually 5V), so you get a voltage output depending on the detected reflectance value. As the reflectance value increases, the voltage output decreases. You can easily use it in line-following robots or edge-detection projects.

Specifications

• Dimensions: 7.6 mm x 12 mm x 2.5 mm
• Operating Voltage: 5 V
• Current Consumption: 25 mA
• Output Format: Analog Voltage
• Output Voltage Range: 0 V – Supply Voltage Value
• Optimal Detection Distance: 3 mm
• Maximum Detection Distance: 6 mm
• Weight: 0.23 g