If you’re like me, you’ve been hearing about a thing called “LoRaWAN” for a while. It promises long distance (~7 km line of sight, ~2km if placed sufficiently high up in an urban area, down to ~100m within a house), low bandwidth communication with very low power consumption. I really wanted to make my bicycle have cool features (like lights and a GPS tracker), but LTE coverage is expensive. LoRA coverage is also lacking in my area, so I needed to make my own relay to test.