The RFM23B-868-S1 is a low-cost, low-power, BOM optimized single-chip RF transceiver designed and manufactured by Hope Microelectronics. It complies with the ETSI EN 300 220-2 and EN 300 440-2 V2.2.2 standards. It operates in the 868-870Mhz frequency range and has data rates up to 38.4kbps in FSK without any external components. It has an integrated PA, LNA, voltage regulator and crystal oscillator. It supports a variety of interface options, including UART, SPI, and USB. It is designed to ensure excellent RF performance, with less than -132 dBm sensitivity. The RFM23B-868-S1 is cost effective, making it ideal for applications requiring low power consumption, extended ranges and low data rates, such as wireless remote control, home and building automation, industrial monitoring, and asset tracking.