The FC-03 optical speed sensor wheel encoder module with the comparator LM393 is used for sensing the speed of rotation of the wheels of a robot.
It can be connected to any 3.3V/5V microcontroller using a set of standard breadboard jumper wires (the module is often used with a slotted disc).
The basic operation of this sensor is: Once something is passed between the sensor slot, it creates a digital pulse on the D0 pin. This pulse goes from 0V to 5V and is a digital TTL signal. Then an Arduino will read this pulse.
Connecting pins of the speed module (encoder FC-03):
VCC: Module power supply from 3.3V to 12V.
GND: Ground.
D0: Digital signal of the output pulses.
A0: Analog signal of the output pulses. Output signal in real time. (Usually not used).
Main technical characteristics:
Dimensions: 32 x 14 x 7mm.
The sensor reading slot has a width of 5mm.
Two outputs, one Digital and one Analog.
LED power indicator.
LED indicator of the output pulses of pin D0.
WARNING
