IR, or infrared, communication is a popular, low-cost, and easy to use wireless communication technology. IR light has a slightly longer wavelength than visible light, so This is undetectable by the human eye - perfect for wireless communication. A common modulation scheme for IR communication is 38kHz modulation. 38KHz Digital IR Receiver Sensor Module For Arduino IR is widely utilized in remote controls. With such IR receivers, the Arduino project is able to receive a command from any IR remote controller if you have the right decoder.
Based on the 38KHz IR Receiver Sensor
Can be used for remote control
Power Supply: 5V
Modulate Frequency: 38Khz
Pin Definitions: (1) Output (2) Vcc (3) GND
Size: 23.5mm x 21.5mm