Description: The RFM22B is a low-cost ISM FSK transceiver module which offers communication at 868MHz ISM and 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 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!
Note: These modules are 433MHz and Rev3.0.
Dimensions: 16 x 16mm (0.63 x 0.63 in)
Remote ON/OFF, 5-24 VDC, iOS and Android with eWeLink, Real-time to App
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Class 10, Kích thước: 11mm x 15mm x 1mm
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939/1A Kha Vạn Cân, Linh Tây, Thủ Đức, HCM
Email: firstname.lastname@example.org. Skype ID: thegioiic, vinaautomation
GPKD số: 0311 641 951. TP. HCM cấp 19/03/2012