RFM22B-S2 SMD Wireless Transceiver +22dBm

8.20 Ex VAT
9.84 Inc VAT

The RFM22 is a low-cost ISM FSK transceiver module which offers advanced radio features, adjustable output power of up to +17 dBm. The wide operating voltage range of 1.8-3.6 V and low current consumption makes the RFM22 an ideal solution for battery powered applications.

Communication with the RFM22 is achieved via a standard 4-wire SPI interface. Three configurable general purpose I/Os are also available, the use of which can be tailored towards the needs of your project. A host of other features are also available including an 8-bit ADC, temperature sensor, RX and TX FIFOs, and low-battery detection. See the datasheet below for a complete description of every register and command.

The module comes in a 16-pin, 16 x 16mm, SMD package, with pins spaced by 2mm. Look for a breakout board coming soon!


  • Frequency Range =434 MHz
  • Sensitivity = -118 dBm
  • +20 dBm Max Output Power (Configurable)
  • Low Power Consumption
  • Data Rate = 1 to 128 kbps
  • Power Supply = 1.8 to 3.6 V
  • Ultra low power shutdown mode
  • Digital RSSI
  • Wake-on-radio
  • Auto-frequency calibration (AFC)
  • Configurable packet structure
  • Preamble detector
  • TX and RX 64 byte FIFOs
  • Low battery detector
  • Temperature sensor and 8-bit ADC
  • -40 to +85 C temperature range
  • Integrated voltage regulators
  • Frequency hopping capability
  • FSK, GFSK, and OOK modulation
  • Low BOM
  • Power-on-reset (POR)
  • Dimensions: 16 x 16mm (0.63 x 0.63 in)


Add to Cart:

  • Model: RFM22B-S2

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