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MicroJPM

SparkFun RFM69 Breakout (434MHz) [WRL-12823] - (AD15520)

SparkFun RFM69 Breakout (434MHz) [WRL-12823] - (AD15520)

$15.50 USD
$15.50 USD
Sale Sold out

Description:

This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all available pins on the RFM69HCW module, as well as making it easier to use. The RFM69HCW is an affordable and versatile radio module that operates in the license-free ISM (Industrial, Scientific, and Medical) radio band. It is perfect for building low-cost, short-range wireless networks with sensors and actuators for home automation, citizen science, and more.

This RFM69HCW operates on the 434 MHz frequency and is capable of transmitting up to 100mW and 300kbps, but you can adjust both values to suit your application. For instance, you can maximize range by increasing transmit power and lowering the data rate, or you can lower both for short-range, battery-sipping sensor networks. At full power with simple wire antennas, we've been able to send messages across a large office building through numerous internal walls. In open air, 500 meters or more can be achieved. With more complex antennas and modulation schemes, similar components have successfully transmitted from space to earth (done by very clever ham radio operators; your mileage may vary!).

The RFM69HCW uses a Serial Peripheral Interface (SPI) to communicate with a host microcontroller, and a number of quality Arduino libraries exist. It supports up to 256 networks of 255 nodes per network, features AES encryption to keep your data private, and transmits data packets up to 66 bytes long.

SparkFun sells two versions of the RFM69HCW: a 915 MHz version and this 434 MHz version. Although the ISM band is license-free, it varies by region. Roughly, the 915MHz band is used in the Americas, and the 434MHz band is used in Europe, Asia, and Africa. Check local regulations for other regions.

Dimensions: 2cm x 2.8cm

Features:

  • Transmit Power: -18 dBm (0.016mW) to +20 dBm (100mW) in 1dBm steps
  • Receive Sensitivity: up to -120 dBm at 1.2 kbps
  • Modulation Types: FSK, GFSK, MSK, GMSK, OOK
  • Bit Rates (FSK): 1.2 kbps to 300 kbps
  • Voltage Range: 1.8V to 3.6V
  • Current Consumption: 0.1µA sleep, 1.25mA standby, 16mA receive, 130mA transmit (max)
  • Encryption: 128-bit AES (optional)
  • Packet Buffer (FIFO): 66 bytes

Documents:

Reference Link 1

Reference Link 2

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