Modern Robotics Modern Robotics Ambient Light Sensor

The Modern Robotics Ambient 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 small changes in light and dark environments. Light sensor to detect the ambient light level; Sensor Type: Three Wire Analog Sensor; Power: 5 VDC, 20 mA max.; Signal Logic Levels: Analog 0 – 5 V