Description:
RFM31B 868MHz ISM Receiver, HopeRF The **RFM31B-868** is a highly integrated, low-cost 868MHz ISM-band receiver module. Built-in antenna diversity and support for frequency hopping can be used to extend range and enhance performance. An easy-to-use calculator is provided to quickly configure the radio settings, simplifying customer"s system design and reducing time to market. Available in DIP or SMD module format. ### Module Features Carrier Frequency Range: 848 to 888MHz ISM band Receiver Sensitivity: –121dBm @ 2kbps, GFSK OTA Data Rate = 0.123 to 256kbps Modulation: FSK, GFSK or OOK Frequency hopping (FHSS) capability Digital RSSI Wake-up timer On-chip crystal tuning Auto-frequency calibration (AFC) Power-on-reset (POR) Embedded antenna diversity algorithm Packet handler, preamble detector and CRC checker Supports Data Whitening and Manchester Encoding Receiver 64-byte FIFO Low-battery detector Temperature sensor and 8-bit ADC Host communication: serial SPI Power Supply: +1.8 to +3.6Vdc Power-saving modes: Tune, Ready, Sensor, Sleep, Standby, Idle and Shutdown Integrated voltage regulators Operating temperature range: -40 to +85°C Dimensions: 15.5 x 14mm (DIP), 16 x 16mm (SMD) Applications: Remote control, Home security, Telemetry, Personal data logging, Tyre pressure monitoring, Wireless PC peripherals, Remote meter reading, Remote keyless entry, Home automation, Industrial control, Sensor networks, Health monitors and the Internet-of-Things (IoT) ### RS Product Codes 731-2735 RFM31B-868-D 14-Pin DIP module 731-2739 RFM31B-868-S1 16-Pin SMD module ### Wireless Module - HopeRF
