We programmed one board to transmit it's position using LoRa on 434MHz and SF12 and the other as receiver. The coordinates at the receiver are hard-coded for now at our workplace. The receiver is plugged in a usb port and it acts a s a virtual com port.
And here are first results.
![Fig. 1: Teminal output from the receiver. Fig. 1: Teminal output from the receiver.](https://cdn.hackaday.io/images/3142761538344414859.jpg)
The receiver is mounted on a stick a the top of the hangar and I went for a ride with the bicycle. As you can see, I had my 6km exercise for today. Data rate is low: one message every minute.
That RSSI is a bit low for this small distance ...
I put the transmitter in an electrical junction box with 2 18650 LiIon cells in parallel. It must hold together for the rough testing coming it's way. The 3d printed enclosure is not as solid as it looks.
![Fig. 2: Junction box "bulletproof" transmitter. Fig. 2: Junction box "bulletproof" transmitter.](https://cdn.hackaday.io/images/8803931538347022518.jpg)
![Fig. 3: Junction box close-up. Fig. 3: Junction box close-up.](https://cdn.hackaday.io/images/4935371538347019251.jpg)
I specifically not posted a picture of the receiver. Every viewer would laugh its ass off. Just imagine this PCB, with a 10m USB cable, a bare wire antenna sticking at the top, with a black garbage bag to keep rain away, everything held together to a wooden stick, with orange insulator tape. On top of a hangar. Quite an image, right ?
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