How do devices in an infrared communicate( bidirectional or unidirectional)?
Answers
IR wireless is the use of wireless technology in devices or systems that convey data through infrared (IR) radiation. Infrared is electromagnetic energy at a wavelength or wavelengths somewhat longer than those of red light. ... IR wireless is used for short- and medium-range communications andcontrol.
Using a single IR LED, a resistor and the internal 1.27 V reference, controlled by optimized software inside the Sensor Controller engine, both transmitter and receiver functions for IrDA PHY @ 9600 bps are implemented in the TIDA-01212 reference design. This approach can be used with the TI CC13xx or CC26xx SimpleLink™ Wireless MCUs or any MSP43x MCUs to reduce cost by replacing legacy optical IrDA PHY modules with two separate LEDs, which are used in virtually all (sub-)metering applications.