RFM22B-S2 Smd Wireless Transceiver

The RFM22B is a low-cost ISM FSK transceiver module which offers communication at 915MHz ISM. It has adjustable output power of up to +20 dBm. The wide operating voltage range of 1.8–3.6 V and low current consumption makes the RFM22B an ideal solution for battery powered applications. Communication with the RFM22B is achieved via 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 SMD package with pins spaced by 2mm.

Note: These modules are 915MHz and Rev3.0.

Specifications of RFM22B-S2 Smd Wireless Transceiver:

•     Frequency Range: 915MHz ISM
•     Sensitivity = -121 dBm
•     Output power range: +20 dBm Max
•     Data Rate = 0.123 to 256 kbps
•     FSK, GFSK, and OOK modulation
•     Power Supply = 1.8 to 3.6 V
•     Ultra low power shutdown mode
•     Digital RSSI
•     Wake-up timer
•     Auto-frequency calibration (AFC)
•     Power-on-reset (POR)
•     Antenna diversity and TR switch control
•     Configurable packet h andler
•     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
•     On-chip crystal tuning

Dimensions:

• size: 16 x 16 mm

Package includes:

• 1 X RFM22B-S2 Smd Wireless Transceiver

Resources:

• Datasheet
• Example Code