LoRaWAN
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LoRaWAN is an RF standard for IoT devices to connect to the internet.
Gateway
Research
We decided in the Plenum to buy a LoRaWAN gateway for the space. However, we don't really know kind of gateway to get. Let's figure out what kinds exist today.
Prebuilt
- The Things Gateway [1] - not available yet?
- Kerlink IoT station [2] - can you buy that?
- Microchip LoRa Evaluation kit [3]
- Includes a gateway and two nodes
- RisingHF Gateway RHF2S008 [4] - around 700€ ex. taxes Media:Lora_RisingHF_Prices.pdf
- Product brief Gateway RHF2S008 [xyz]
- Product brief Modem [xyz]
- Product brief Temp/Hum Sensor Node RHF1S001 Media:RHF1S001_Product_Brief.pdf
- AirFy
- [5]
- Supposed to be available sometime in Q4 2016
DIY
- ic880a-gateway
- http://www.instructables.com/id/LoRaWAN-Gateway/
- Single Channel Gateway (not LoRaWAN spec conform, but maybe sufficent for testing?)
SDR
Just some thoughts. The difficult parts to get seem to be the RF modules for a LoRaWAN gateway. How about building one with a SDR? We have a few badges from the last CCCamp at the space, which work like an HackRF...
Some links I found:
- Post on the TTN forums
- https://revspace.nl/DecodingLora
- https://myriadrf.org/blog/lora-modem-limesdr/
- https://github.com/BastilleResearch/gr-lora
Gateway number One
DIY gateway with RPi and IC880a SPI board, acc. to [8]
- BOM
| Description | Seller | Price |
|---|---|---|
| RPi | - | - |
| IC880a | IMST | 218.83€ |
| Adapter Board | Tindie GNZ | 9.75€ |
| GP868 | funkmodul.com | 37.37€ |
| U.FL -> BNC Adapter | 4GLte.eu | 8.70€ |
| total | 274.65€ |
- Gateway EUI B827EBFFFECA0023
- Install Log
- Check status at http://noc.thethingsnetwork.org:8085/api/v2/gateways/eui-b827ebfffeca0023
- Components
Client devices
Research
Available boards:
- Arduino shields
- Dragino LoRa shield
- Based on HopeRF RFM95W
- Severin has one
- Dragino LoRa BEE
- based on SX1276/SX1278
- Heiko ordered some
- Dragino LoRa shield
- Complete boards
- PyCom LoPy (WiFi, LoRa & BLE) - 34,95€ @ EXP-Tech
- Adafruit Feather 32u4 with LoRa (LoRa, LiPo Charger) - 36,95€ @ EXP-Tech
- SODAQ LoraOne (LoRa, LiPo, Solar) - ~95€
- Badgerboard (LoRa, LiPo, Temp/Humidity) - ~55€
- Mini-LoRa - DIY
- ESP32 with OLED and SX1278 - "Heltec WiFi LoRa 32"
- Full sensor units
Test Unit One
- Arduino Uno
- Dragino LoRa shield
- GPS module
Simple Dev Boards
- TTN Amsterdam: Arduino Pro Mini + RFM95 + BMP280
- HowTo (Some more information in the comment of this meetup)
- Buy the board (via [9])
- Complete Kit
- Design files on GitHub
- TTN Stuttgart: BluePill + RFM25 + BMP280
- Presentation
- GitHub Repo (w/o Hardware design still)
- Made by @orangeway
Ideas for Sensors
- Weather station (Temperature, Humidity, Air Pressure)
- Water temperature (lake, garden pond)
- Water level (cistern, garden pond, river)
- PIR sensor for movement (garage, selfstorage, ...)
- Also Door openings
- Offgrid solar monitoring
- Postbox status -> "You got mail!"
- Garden/Plant monitoring
Cloud
We connect to The Thingsnetwork
- Documentation: https://www.thethingsnetwork.org/docs/
- Munich Community: https://www.thethingsnetwork.org/community/munich/
- Our Test Application: https://staging.thethingsnetwork.org/applications/70B3D57ED00012F7
Other Information
- https://medium.com/@ashujoshi/4-ingredients-needed-to-get-started-with-lorawan-1ff519274122
- TI Antenna selection Guide [10]
- Home made 868MHz Ground Plane [11]
- Introducation to LoRaWAN [12]
- Another Antenna [13]
Example Sensor projects
Alternative systems
- Talk about an also LoRa based alternative to LoRaWAN, which should be able to work coexistingly with LoRaWAN: LoraLight
