SparkFun Pro RF - LoRa, 915MHz (SAMD21, Black Board)

The SparkFun Pro RF is a LoRa®-enabled wireless board that marries a SAMD21 and a long-range RFM95W to make a compact and easy-to-use IoT Arduino board. With its fast MCU and excellent point to point data transmission in the 915MHz ISM band with LoRa Capabilities, the Pro RF is a great choice for anyone interested or experienced in utilizing long range data communication.

You may be wondering why this board features a black PCB rather than our normal red? Well, to put it plainly, we accidentally ordered the wrong color and rather than just put them with our scrap PCB panels, we figured some of you out there would prefer the black over the red color! These will only be available for a limited time so once they're gone, they're gone.

Every pin on the SparkFun Pro RF is accompanied with a ground connection making the buttons and LEDs easy to connect. In case you're building something to be embedded into clothing or other physically harsh environment the antenna includes a stress relief hole to make sure your wire antenna survives. A short (3 inch) wire antenna is sufficient for "short" distances (up to 1 mile line-of-sight), but we've also included a u.FL antennae connector for potentially longer distances.

The Pro RF also includes a power switch and 2-pin JST connector for powering from a lithium battery. With a Micro-B USB and the power switch in the off position, the Pro RF will charge the attached battery! The board programs over a reinforced Micro-B connector with a slim reset button that fits nicely on the side of the board. We’ve even added our popular Qwiic connector to the edge of the board making it incredibly easy to add sensors and actuators without the need for solder or a soldering iron!

Thanks to the Arduino LoRa library, the RFM95W radio is an easy to use packet radio. But it doesn’t stop there because closing a few jumpers on the underside of the SAMD21 Pro RF initiates LoRaWAN mode on the radio module making it a node in a distributed sensor network.

Note: Since this product belongs to our “Ding & Dent” category, once we are out of stock, we will not carry it again. Get them while you can! We also cannot accept requests, returns, or exchanges.

  • SAMD21G18A
    • Cortex M0+
    • 256KB Flash Memory
    • 32MHz External Oscillator
    • 4 Digital and 5 Analog IO Pins with exclusive GND pins
  • Hope RFM95W LoRa modem
    • Point to Point Radio capabilities
    • LoRa Enabled
    • Frequency range: 915 MHz
    • Spread factor: 6-12
    • Range up to 1 mile line of sight
    • U.FL Antenna
  • LiPo Battery Charger
    • 500mA Charge Rate
  • Qwiic Enabled
  • Black Board

SparkFun Pro RF - LoRa, 915MHz (SAMD21, Black Board) Product Help and Resources

SparkFun SAMD21 Pro RF Hookup Guide

October 4, 2018

Using the super blazing, nay blinding, fast SAMD21 whipping clock cycles at 48MHz and the RFM96 module to connect to the Things Network (and other Radio woodles).

Adding More SERCOM Ports for SAMD Boards

February 4, 2019

How to setup extra SPI, UART, and I2C serial ports on a SAMD-based boards.

Core Skill: Programming

If a board needs code or communicates somehow, you're going to need to know how to program or interface with it. The programming skill is all about communication and code.

2 Programming

Skill Level: Rookie - You will need a better fundamental understand of what code is, and how it works. You will be using beginner-level software and development tools like Arduino. You will be dealing directly with code, but numerous examples and libraries are available. Sensors or shields will communicate with serial or TTL.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Customer Comments

  • Love the graphical datasheets (https://cdn.sparkfun.com/assets/e/0/6/6/5/SamProRF_Graphical_Datasheet_Updated.pdf), but there seems to be an error in the pin labeling. On the left row, fourth from the top, it looks like you added an extra row of ground/ground??? Three seems to be 11 rows of pins and 12 rows of labels??

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