The Adafruit Feather ecosystem is so rich with hardware diversity, we wanted to share them, one each day. Today is the Adafruit Feather RP2040 with RFM95 LoRa Radio – 915MHz – RadioFruit with STEMMA QT!
We call these RadioFruits, our take on a microcontroller with a “Long Range (LoRa)” packet radio transceiver with built-in USB and battery charging. It’s an Adafruit Feather RP2040 with a 900MHz radio module cooked in! Great for making wireless networks that are more flexible than Bluetooth LE and without the high power requirements of WiFi.
Feather is the development board specification from Adafruit, and like its namesake, it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. We have other boards in the Feather family, check’em out here.
It’s kinda like we took our RP2040 Feather and RFM95 900MHz breakout board and glued them together. You get all the pins for use on the Feather, the Lipoly battery support, USB C power / data, onboard NeoPixel, 8MB of FLASH for storing code and files, and then with the 8 unused pins, we wired up all the DIO pins on the RFM module. There’s even room left over for a STEMMA QT connector and a uFL connector for connecting larger antennas.
This is the 900 MHz LoRa 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.
At the Feather’s heart is an RP2040 chip, clocked at 133 MHz and at 3.3V logic, the same one used in the Raspberry Pi Pico. This chip has a whopping 8MB of onboard QSPI FLASH and 264K of RAM! This makes it great for running LoRa and LoRaWAN stacks that need a fairly strong processor to manage packets.
USE
The Adafruit Feather RP2040 RFM95 Guide provides all the details and use examples.
Guides
In stock! You can buy the Adafruit Feather RP2040 with RFM95 LoRa Radio – 915MHz – RadioFruit and STEMMA QT in the Adafruit shop.
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