LED Indicator: The LED blinks in response to the sensor's detection of an object. The blinking behavior is controlled by the Arduino based on the sensor's output. Circuit Connections: IR Sensor VCC ...

Self-balancing Arduino Does It Without An IMU. 15 Comments . by : Mike ... The black PCB seen to the right of the robot is an IR reflectance sensor. It shines an IR led at the floor and picks up ...