Transmitters & Receivers
IR Transmitter & Receivers
- 3mm 940nm LED Infrared Transmitter and Receiver Diodes
Transmitter Circuit
- transparent diode
Simple IR Transmitter LED connected with a Resistor, 330 Ohm or higher and connected with battery
Receiver circuit
With a BLACK receiver photo diode, which is reverse-biased,
- connect the cathode with the VCC positive,
- the anode with a resistor and an LED to the ground.
When the 2 circuits are in range, the LED will Glow
PIR Motion detector Sensor
Reflective IR Obstacle Avoidance Sensor Modules
KY-008 Laser transmitter receiver Sensor Module
Ultrasonic Distance Sensors
Need a microcontroller or R-Pi board to decode the signals received