Merge pull request #636 from BHDynamics/dynalora_usb

Add DynaLoRa-USB board

_board/dynalora_usb.md

@@ -0,0 +1,44 @@
+---
+layout: download
+board_id: "dynalora_usb"
+title: "DynaLoRa-USB Download"
+name: "DynaLoRa-USB"
+manufacturer: "BH Dynamics"
+board_url: "https://github.com/BHDynamics/rfm_radio_dongle"
+board_image: "dynalora_usb.jpg"
+features:
+  - LoRa/Radio
+downloads_display: true
+---
+
+## 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 for 868/915 MHz), an user button, an RGB LED and an external interface to plug your favorite peripherals.
+
+
+- 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. We offer the device with the RFM96W, which is capable of LoRa modulation at 868/915 MHz, but you can easily replace it by the 433 MHz version (RFM95W) or 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).
+- Comes preprogrammed with the UF2 Bootloader and latest stable release of CircuitPython.
+
+Hardware is licensed under **CERN OHL v1.2**.
+
+## Documentation
+
+This board is open source hardware. You can check the docs and contribute [here](https://github.com/BHDynamics/rfm_radio_dongle).
+
+## Purchase
+
+* [Tindie](https://www.tindie.com/products/bhdynamics/dynalora-usb/)
+ 
+## Contribute
+ 
+Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_board/{{ page.board_id }}.md).