TvB LoRaWAN Node

I’m getting a lot of response and technical questions about the new LoRaWAN Node.
With this post I hope to give a better overview of the Node hardware and features for those interested in building there own.

overview-node-shield

TvB LoRaWAN Node with RFM95W or RN2483 & Proto Shield

The LoRaWAN Node is a compact, universal and affordable LoRaWAN Node with a powerful Arduino compatible Atmel microcontroller.

Features:

Microcontroller
  • Atmel Atmega1284P (Arduino compatible)
Size
  • 40 x 25 mm
Operating voltage
  • 3.3V (onboard regulator)
I/O pins
  • 24 available pins (Digital I/O, Analog input, PWM, UART, SPI & I2C)
Flash memory
  • 128 KB (4x more than Arduino Uno)
SRAM
  • 16 KB (8x more than Arduino Uno)
EEPROM
  • 4 KB (4x more than Arduino Uno)
Clock
  • 8 MHz
Power
  • 5V USB power
  • Single cell 3.7V LiPo battery
Charging
  • (Solar) Charge controller IC with status LED, up to 500mA charge current (max. 6V input)
LED
  • RGB LED + extra blue LED
Supported LoRaWAN modules
  • HopeRF RFM9X
  • Microchip RN2483 / RN2903 (High-band only)
Antenna
  • U.FL and/or SMA connector
Programming
  • FTDI programming header for USB to Serial converter
Extra
  • Default JST 2.0 battery connector
  • Buid-in battery voltage divider for measuring battery state
  • Onboard reset switch
  • Breadboard compatible headers
The LoRaWAN Node is only 7.5 mm thick when used with an RN2483 LoRaWAN module.

The LoRaWAN Node is only 7.5 mm thick when used with an RN2483 LoRaWAN module (without JST battery connector).

Pinout:

tvb-lorawan-node-rev-2-pinout
Because I like to use different LoRaWAN modules depending on the project I’ve added support for the 2 most popular LoRaWAN modules:

  • TvB LoRaWAN Node – RFM95W
  • TvB LoRaWAN Node – RN2483 (LoRaWAN Certified)

Without any hardware modifications I can use one of these 2 modules.
The practical range of both modules is the same, the only big difference is the missing LoRAWAN certification for the RFM95W.

 

Here a more detailed picture of the Node with headers, SMA antenna connector and the JST battery connector to power the board (the power cable is not included).

tvb-lorawan-node-rev2

TvB LoRaWAN Node with accessories

To make my applications more “Plug & Play” I made myself a great gadget: The “Proto Shield”.
It’s designed to fit on the node to create prototyping space.
It even has an extra mosfet load-switch circuit with LED indication to power ON/OFF external circuits! Great, isn’t it?

tvb-proto-shield-rev2

TvB Proto Shield with female headers

Want to know more? Get in touch here

Please note: This hardware is not for sale, neither is the schematic or design files.
The developed hardware / software is not open source.

One comment on “TvB LoRaWAN Node

  1. Pingback: RN2483 based LoRaWAN Board — Made by Thomas van Bellegem

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