The Parallax RF Transceiver is a very easy to use and low cost module capable of sending serial data wirelessly between microcontrollers or to a PC. The low power consumption makes this module ideal for use in battery powered applications. This module sends and receives data by AM or CPCA modulation, thus offering a higher average output power which extends its range. This module is equipped with an RSSI feature that can be utilized to improve power efficiency by waking up circuitry only when an external signal is detected.