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Feather 32u4 RFM96 LoRa Radio - 433MHz

Feather 32u4 RFM96 LoRa Radio - 433MHz

47.99

Product Code : 1887

In Stock Now : 3
Tasse incluse: 53,75 € Tasse escluse: 44,79 €
  • Feather 32u4 RFM96 LoRa Radio - 433MHz
  • Feather 32u4 RFM96 LoRa Radio - 433MHz top view with headers
  • Feather 32u4 RFM96 LoRa Radio - 433MHz top view
  • Feather 32u4 RFM96 LoRa Radio - 433MHz connected
  • Feather 32u4 RFM96 LoRa Radio - 433MHz with coin

This is the Feather 32u4 LoRa Radio (RFM9x) with a "Long Range (LoRa)" packet radio transceiver with built in USB and battery charging. Its an Adafruit Feather 32u4 with a 433 radio module included. Great for making wireless networks that can go further than 2.4GHz 802.15.4 and more flexible than Bluetooth LE without the high power requirements of WiFi. This is the 433 MHz radio version.

At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3V logic, a chip setup which is the same as the Flora. This chip has 32K of flash and 2K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc.

To make it easy to use for portable projects, a connector has been added for 3.7V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. You can measure and monitor the battery voltage to detect when you need a recharge through a divider to an analog pin.

This Feather 32u4 LoRa Radio uses an RFM9x LoRa 433 MHz radio module. These radios are not good for transmitting audio or video, but they do work quite well for small data packet transmission when you need more range than 2.4 GHz (BT, BLE, WiFi, ZigBee).

  • SX1276 LoRa® based module with SPI interface
  • Packet radio with ready-to-go Arduino libraries
  • Uses the amateur or license-free ISM band (ITU "Europe" license-free ISM or ITU "American" amateur with limitations)
  • +5 to +20 dBm up to 100 mW Power Output Capability (power output selectable in software)
  • ~300uA during full sleep, ~120mA peak during +20dBm transmit, ~40mA during active radio listening
  • Simple wire antenna or spot for uFL connector
  • Initial tests with default library settings: over 1.2mi/2Km line-of-sight with wire quarter-wave antennas. (With setting tweaking and directional antennas, 20Km is possible)

Comes fully assembled and tested with additional headers that need to be soldered for use with breadboards. It has a USB bootloader that lets you quickly use it with the Arduino IDE.

Note: You will need to cut and solder on a small piece of wire (any solid or stranded core is fine) in order to create your antenna. Lipoly battery and USB cable not included.

  • Dimensions: 2.0" x 0.9" x 0.28" (51mm x 23mm x 8mm) without headers soldered
  • Weight: 5.5g
  • ATmega32u4 @ 8MHz with 3.3V logic/power
  • 3.3V regulator with 500mA peak current output
  • USB native support, comes with USB bootloader and serial port debugging
  • PINs: 20 GPIO, 8 PWM, 10 Analog
  • Hardware Serial, hardware I2C, hardware SPI support
  • Built in 100mA lipoly charger with charging status indicator LED
  • Pin #13 red LED for general purpose blinking
  • Power/enable pin
  • 4 mounting holes
  • Reset button/

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