TRX01

The TRX01 from Atmel is a single-chip transceiver that has been designed for low-power, wireless applications and is optimised for use in the 433-MHz and 868-MHz ISM bands, where licence-exempt data communication is permitted.This new IC (type AT86RF211) from Atmel can communicate with any microprocessor via a 3-wire bus. The device can be completely configured (output power, frequency) through this interface. Even the battery voltage and the received signal strength are measured. These parameters are available in the status register. There is also a timer, among other things, that allows for the possibility to automatically start the circuit after some period of time.Two of these ICs make it possible to build a reliable connection over a distance of several hundreds of meters.