I’ve been heavily involved with sensors and remote sensing for many years. Recently, I’ve become intrigued with remote sensing, and began my exploration with LoRaWAN. However, to start experimenting with sensor nodes, I would need a gateway to receive all my node transmissions (as well as send back any data to the nodes). Below is how I built and implemented my outdoor LoRaWAN Gateway.

Bill of Materials

PartQuantity
Raspberry Pi 3 B+ or Raspberry Pi 41
Micro SD Card (32 GB)1
LoRaGo PORT Multi-channel LoRaWAN Gateway1
915 MHz 8 dBi LoRaWAN Antenna1
IP67 Weatherproof Enclosure1
Antenna Mast Clamp1
Passive Power Over Ethernet (PoE) Injector2
Waterproof Panel Mount RJ45 Connector1
NEMA Box Vent2
Antenna Tripod Mount1
Weatherproof Cable Glands1
12-volt 5-Amp Power Adapter1
Adjustable Voltage Regulator1
50 Feet CAT-7 Cable1
SHT31 Temperature/Humidity Sensor1

Construction

Positioning the components on the back plate of the enclosure was simple enough. There was a lot of room to work with, and I gave consideration to how heat would rise in the case. The Pi was positioned relatively low, with the temperature/humidity sensor positioned near the top to obtain potentially the most extreme conditions of the case.

An antenna mast mount was used to secure both the enclosure and the antenna to a 2-inch steel pipe. This pipe was then fixed to a satellite tripod mount. Rubber washers were used both inside and outside of the enclosure to prevent water intrusion through the mount holes.

Two vents were installed, with one higher than the other to facilitate airflow that would arise from the heat generated by the Pi and gateway hardware. The 12 volts from the PoE injector was regulated to 5 volts to power the Pi. The LAN was connected from the PoE injector directly to the Pi to provide network connectivity. WiFi could also have been used, however this is often not as reliable as a wired connection. The gateway hardware attached directly to the Pi for both communication and power. The antenna from the gateway exited the enclosure through a weatherproof cable gland and connected to the antenna.

The gateway was bolted to a plywood deck and the CAT-7 ethernet cable was connected to a router to provide internet access for the gateway to send data to The Things Network. This setup could also be modified for use with a custom-built LoRaWAN receiver if one wished to build their own network (i.e. if there was no internet access and all data was fed to a local server).

The area surrounding this gateway is heavily wooded, however I’ve successfully received transmissions from a mile away. The property this is on is only 26 acres, so it easily covers the entire property.

Projects that use this gateway

Remote Radiation Monitoring (2019)
LoRaWAN Tracker and Mapper (2019)

Check out the Projects page to see the most up-to-date list.

Affiliate links

I participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com, and I make a commission for sales made through affiliate links posted on this website.

Kyle Gabriel

Leave a Reply

Your email address will not be published. Required fields are marked *