The RFM69HCW module is a cost-effective and versatile radio module. You can use it to send text or binary data between two or hundreds of modules. It is perfect for building low-cost wireless short-distance networks for home and building automation, sensor networks, automated meter readings, wireless alarm and security systems, industrial monitoring and control and many other applications!The RFM69HCW transceiver module operates over a wide frequency range, including industry scientific and medical (ISM) frequency bands, 315, 433, 868, and 915 MHz. All important RF communication parameters are programmable and most can be set dynamically. The RFM69HCW is optimized for low power consumption while providing high RF output power and channelized operation.This VMA214 RFM69HCW radio shield connects the RFM69HCW module to the corresponding lines on the Arduino. The RF69 library allows you to send and receive messages through the standard 4-wire SPI interface. The library contains command str