Consisting of six IR diodes, this IR follower module from OSEPP can be used to sense infrared light as a way to guide your Arduino project. 100% Arduino compatible. Use it to build your own light following robot! Six infrared diodes for IR detection. Pin Outs OverviewThis device has both digital and analog outputs for each IR diode. The analog output for each respective LED will put out a voltage from GND to VCC depending on the amount of light applied to the diode. The digital output for each respective LED will put out VCC (HIGH) if light is not detected, and GND (LOW) if light is detected. Pin No. Pin Label Description 1 GND Ground 2 GND Ground 3 VCC 5V 4 VCC 5V 5 D6 Digital Output for IR Diode #6 6 A6 Analog Output for IR Diode #6 7 D5 Digital Output for IR Diode #5 8 A5 Analog Output for IR Diode #5 9 D4 Digital Output for IR Diode #4 10 A4 Analog Output for IR Diode #4 11 D3 Digital Output for IR Diode #3 12 A3 Analog Output for IR Diode #3 13 D2 Digital Output for IR Diode #2 14 A2 Analog Output for IR Diode #2 15 D1 Digital Output for IR Diode #1 16 A1 Analog Output for IR Diode #1 CalibrationAt the center of the device, you'll find a trimpot. This trimpot is used to adjust the digital comparators. Turning this trimpot changes the point at which light is considered detected, or not detected on the digital outputs. Turning it left will make the device more sensitive (less IR light is needed to pull the digital outputs LOW). Turning it right will make the device less sensitive (more IR light is needed to pull the digital outputs HIGH). The trimpot does not effect the analog outputsUsing the Module with an ArduinoConnect the sensor to the Arduino using either the digital or analog outputs and apply 5V. Specifications Catalog No. 2760450 Mfg. Part No. IRFOL-01 UPC 667510001066 Technical Schematic (PDF)UPT333C Technical Data Sheet (PDF)⚠️ WARNING: CHOKING HAZARD: Small parts. Not for children under 3 yrs.