SparkFun RFM69 無線傳輸模組 (434MHz)

CMR0014

RFM69HCW是一種廉價且通用的無線電模組,在無許可的ISM無線電頻段內運行。

這款模組是434MHz頻率,能夠傳輸高達100mW和高達300kbps,但您可以更改這兩個值,以適應您的應用程序。例如,您可以通過增加發射功率和降低數據速率來最大化範圍,也可以減少短距離傳感器網絡,從而消除電池電量。

更多資訊

NT$ 473 含稅

更多資訊

產品介紹:

RFM69HCW是一種廉價且通用的無線電模組,在無許可的ISM無線電頻段內運行。

這款模組是434MHz頻率,能夠傳輸高達100mW和高達300kbps,但您可以更改這兩個值,以適應您的應用程序。例如,您可以通過增加發射功率和降低數據速率來最大化範圍,也可以減少短距離傳感器網絡,從而消除電池電量。

在全功率和簡單的有線天線的情況下,RFM69的突破可以通過許多內牆從大型辦公樓的一側傳遞到另一側。在露天,你可以達到500米以上。

This is the SparkFun RFM69 Breakout, a small piece of tech that breaks out all the pins available on the RFM69HCW module as well as making the transceiver easy to use. The RFM69HCW is an inexpensive and versatile radio module that operates in the unlicensed ISM (Industry, Science and Medicine) radio band. It’s perfect for building inexpensive short-range wireless networks of sensors and actuators for home automation, citizen science and more.

This RFM69HCW operates on the 434MHz frequency and is capable of transmitting at up to 100mW and up to 300kbps, but you can change both of those values to fit your application. For example, you can maximize range by increasing the transmit power and reducing the data rate, or you can reduce both for short-range sensor networks that sip battery power. At full power and with simple wire antennas, we can get messages from one side of a large office building to the other through numerous internal walls. In open air you can reach 500 meters or more. With more complex antennas and modulation schemes, similar parts have successfully transmitted from space to the ground (by very smart amateur radio enthusiasts; your mileage may vary)!

The RFM69HCW uses an SPI (Serial Peripheral Interface) to communicate with a host microcontroller, and several good Arduino libraries are available. 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 915MHz version and this 434MHz version. Although the ISM band is license-free, the band itself is different in different areas. Very roughly, 915MHz is for use in the Americas, and the 434MHz version is for use in Europe, Asia and Africa. Check your local regulations for other areas.

GET STARTED WITH THE RFM69HCW HOOKUP GUIDE

產品規格:

  • Transmit power: -18dBm (0.016mW) to +20dBm (100mW) in 1dBm steps
  • Receive sensitivity: down to -120dBm at 1.2kbps
  • Modulation types: FSK GFSK MSK GMSK OOK
  • Bit rates (FSK): 1.2kbps to 300kbps
  • Voltage range: 1.8V to 3.6V
  • Current consumption: 0.1uA sleep, 1.25mA standby, 16mA receive, 130mA transmit (max)
  • Encryption: AES 128-bit (optional)
  • Packet buffer (FIFO): 66 bytes
  • Dimensions: 0.8" x 1.1"

文件下載: