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HopeRF RFM31B-868-D RF Receiver Module 868 MHz, 1.8 → 3.6V

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UnitsPer unit
1 - 4£6.76
5 - 9£6.23
10 +£5.95

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 Modules - HopeRF

Module TypeReceiver
Supported Frequency Bands868MHz
Modulation TechniqueFSK, GFSK, OOK
Maximum RF Data Rate256kbit/s
Receiver Sensitivity-121dBm
Supported Bus InterfacesSPI
Supply Voltage1.8 → 3.6V
Dimensions14 x 15.5 x 5.9mm
Maximum Operating Temperature+85 °C
Minimum Operating Temperature-40 °C