This tool allows you to construct synthetic uplink payloads to use for integration testing. If you're looking for a way to decode uplinks from a real device, try the uplink decoder here.

You can find the full payload specification here.

Yabby 3 LoRaWAN Uplink Encoder

{
latitude: 12.0 / 1e-7,
longitude: 34.0 / 1e-7,
inTrip: true,
fixFailed: false,
heading: 90.0 / 5.625,
speedKmh: 15,
vBat: 4.5 / 0.025,
}