Overview

DynaLoRa-USB is a low cost and open source, CircuitPython and Arduino compatible, LoRa tinkering dongle designed by and for makers.

Our aim is to facilitate access to the hottest radio technology (LoRa) through the use of maker-friendly languages such as Python and the Arduino framework. With that intent, DynaLoRa-USB is a simple device that you just plug and play with! It includes a powerful SAMD21 microcontroller and a HopeRF LoRa radio module (RFM96W or RFM95W for 433 MHz or 868/915 MHz), an user button, an RGB LED and an external interface to plug your favorite peripherals.

Technical details

Here is an overview of the technical characteristics of the board:

• ATSAMD21E18 48 MHz Cortex-M0+ processor with 256 KB flash + 32 KB RAM, compatible with CircuitPython and Arduino
• 32 Mbit SPI flash for storing CircuitPython code and libraries
• High performance HopeRF radio module. You can choose the radio module you want: RFM96W, which is capable of LoRa modulation at 868/915 MHz, or the 433 MHz version (RFM95W). You should be able to replace the module for a generic Sub-GHz radio (RFM69HCW) since they are pin compatible.
• User-controllable WS2812B addressable RGB LED
• Regular user LED
• 3V3 @ 1A power through a DC/DC buck regulator from USB
• MicroSD Card slot
• GPIO header exposing SWD interface, a full SERCOM (enabling external SPI/I2C/UART peripherals) and a DAC for prototyping
• This version comes with an USB-A plug. It should be easy enough to modify the design to offer other options (such as USB-C).

Package contents

You'll receive the following with your order:

• 1 x fully assembled DynaLoRa-USB
• 1 x 2.54mm horizontal SMD pin header
• 1 x 433MHz or 868/915 MHz monopole antenna

We also offer the naked PCB unassembled in case you want to mount your own components.