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Feather 32u4 RFM95 LoRa Radio - 868 MHz
FEATHER-32U4-RFM95-LORA
ADA3078
Feather 32u4 RFM95 LoRa Radio - 868 MHz
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Feather 32u4 RFM95 LoRa
Feather 32u4 RFM95 LoRa Radio - 868 MHz
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We provide information as complete as possible on this page. Take care to check your conditions of use, application of local regulations on the subject, your license when applicable.
For example, in Belgium, Proximus has set up a LoRa network on the ISM frequency 868 MHz or 900 MHz band (cfr see this Proximus publication, also available here on Google Group).
These modules are intended for experienced radio amateurs. If you need help and advice, don't hesitate to contact your local radio amateur group, you will find competent people there (not to say "knowledge wells").
Feather is the new development board from Adafruit. Ada designed Feather to be light, small and to become a new standard for portable projects based on microcontroller.
This product is the Adafruit Feather 32u4 LoRa Radio (RFM9x) - our take on an microcontroller with a "Long Range (LoRa)" "radio packet" transceiver with integrated USB support and battery charger. Its an Adafruit Feather 32u4 with a 868/915 MHz radio module! Ideal for creating wireless networks that can transmit at greater distances than 2.4GHz 802.15.4 and similar networks, are more flexible than Bluetooth LE and without the high power requirements of WiFi. We have other boards in the Feather family, check'em out here.
This is the 868 MHz radio version, which can be used for either 868MHz or 915MHz transmission/reception - the exact radio frequency is determined when you load the software since it can be tuned around dynamically. We also sell a 433MHz version of the same radio chipset! And if you don't need LoRa radio, we have plain 868MHz packet radios as well
At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3V logic, a chip setup we've had tons of experience with as it's 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, we added a connector for any of our 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. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge.
Comes fully assembled and tested, with a USB bootloader that lets you quickly use it with the Arduino IDE. We also toss in some headers so you can solder it in and plug into a solderless breadboard. 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 but we do have lots of options in the shop if you'd like!
Like all Feather 32u4's you get:
This Feather 32u4 LoRa Radio uses the extra space left over to add an RFM9x LoRa 868/915 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).
Our 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).