To keep our launched unit airborne for as long as possible. What we did:
- State machine to assess situation
- Regulate weight by pumping water
- Log GPS info and calculate data integrity
A CubeCell GPS unit.
We used an ESP32 Wireless Stick to receive info from the payload and write to file.
It uploaded the file to this github repository every half an hour.
The connection between the payload and the ground station was stable.
Some kilometers after crossing the border to Jordan the GPS unit seems to have stopped updating.
The sent packet had a decreasing signal strength, but the gps information was constant.
As the rssi signal keep decreasing, we assume the unit kept floating.
legend
✅ - done
🔳 - needs to be done
💬 - in progress
1 ✅ Display
2 ✅ LoRa
3 ✅ GPS
4 ✅ Servo
5 ✅ Send data from CubeCell to Wireless Stick via Lora
6 ✅ Battery drainer
7 ✅ [Payload] State machine- calcualte ascent rate
8 ✅ [Ground station] Standby from payload, print packets from serial to file
7 ✅ [Payload] Launch
8 ✅ [Ground station] Convert LoRa stream from payload to local file