Infrared is an electromagnetic wave with longer wavelengths than red visible light. In addition to its important applications in medicine, it is widely used for close signal transmission because of the advantages of low device cost, simple technology and good confidentiality. The most common example is an infrared remote control.
Infrared transmission system needs emitter and receiver to work together. IR Receiver Card is a receiver, which can receive infrared signals from various sources, read data instructions, and realize wireless communication, to build the project in a simple and quick manner.
IR Receiver Card allows you to detect infrared (E.g., IR signal from a remote controller). There is an IR detector on the IR Receiver card which is used to get the infrared light emitted by the Infrared Emitter. It can detect a modulated IR signal at 38 KHz. The distance between the IR Receiver card and the IR source should be less than 10 meters.
Longan Cards is a unique open source development platform designed by Longan Labs. As a plug and play development platform, Longan Cards allows you to quicky build wide array of prototypes and applications in no time. A full set of Arduino libraries and plenty of example codes are available to play with Longan Cards platform.
NOTE: IR Receiver Card supports two wire I2C bus interface.