Data Sheet

Sensor Documentation Modern Robotics, Inc.
Version 1.4.3 10
3.5. Light Sensor (45-2015)
The Light Sensor detects the ambient light level using a phototransistor. The value
returned is a quasi-logarithmic analog value that allows the Light Sensor to be used over
at least four decades of light. This means that the Light Sensor can detect slight changes
in light and dark environments. A value of 0 indicated no light and a value of 255
indicated the sensor is flooded with light.
http://modernroboticsinc.com/light-sensor
Sensor Type: Three Wire Analog Sensor
Dimensions: 32 mm x 32 mm x 12 mm
Mounting Holes: 24 mm x 24 mm
Power: 5 V DC, 20 mA max.
Signal Logic Levels: Analog 0 V – 5 V