telemetry-system

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telemetry-system

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Telemetry system for balloon, rocket and other things that can fly high

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# Telemetry System  <div align="right"> ![Cloud-build](https://github.com/cvetaevvitaliy/telemetry-system/workflows/Cloud-build/badge.svg) ![Local-build](https://github.com/cvetaevvitaliy/telemetry-system/workflows/Local-build/badge.svg) </div>
This is a project for transmitting telemetry for a balloon, rocket and other things that can fly high. <br>

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The project consists of:

- Ground station (RX)
-  Transmitting module (TX)

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## Ground station (RX)

#### Block diagram

![](https://github.com/cvetaevvitaliy/telemetry-system/blob/master/doc/pic/Ground-station.png)

This is a module that includes one PCB:

- LoRa transceiver (E19-868M30S)  - 1W power output
- MCU STM32F405
- OLED display
- Lipo charging chip
- Data loger - logging of received information to MicroSD

The display is only needed to display service information, all telemetry is transmitted to a PC via USB to display telemetry in a GUI application, transmission of control commands for the rocket

For details see [WiKi - Ground station (RX)](https://github.com/cvetaevvitaliy/telemetry-system/wiki/Ground-station-(RX))

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## Transmitting module (TX)

#### Block diagram

![](https://github.com/cvetaevvitaliy/telemetry-system/blob/master/doc/pic/Telemetry-module-RX.png)

This is a module that includes separate PCB modules for scalability:

- GPS module (Matek M8Q) and SMA connectors for antennas
- TX module: LoRa transceiver (E19-868M30S)  - 1W power output, MCU STM32F405, logging data to MicroSD card (black box)
- IMU module ( acc, gyro, pressure, sensor )
- Servo module - to control flight stabilization (MCU STM32F405)
- Power module - for power supply of all modules

For details see [WiKi - Transmitting module (RX)](https://github.com/cvetaevvitaliy/telemetry-system/wiki/Transmitting-module-(TX))

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### Protocol specifications

***

In order not to reinvent the "wheel", the UBX protocol was taken as basis and simplified for the current requirements:

- simplicity

- scalability

- short messages to minimize air latency

In protocol not included  ACK and NAK - since this is an overhead in time, if the parcel was not received by the ground station, it's okay, we will received the next message, but will not waste time transmitting package: "success received"

It consists of six blocks, as shown in the picture

![](https://github.com/cvetaevvitaliy/telemetry-system/blob/master/doc/pic/Protocol_RX-TX.png)

You can read more information here [WiKi page - Protocol specifications](https://github.com/cvetaevvitaliy/telemetry-system/wiki/Protocol-specifications)

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## How to build

*Depends:* `gcc-arm-none-eabi` `cmake`

```
mkdir build
cd build
cmake -DBUILD=GROUND_STATION ..
make -j
make clean
cmake -DBUILD=TX_MODULE ..
make -j
make clean
cmake -DBUILD=SERVO_MODULE ..
make -j
```
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## How to flash

*TODO: need update*

For flash via USB need use `dfu-util` - Device Firmware Upgrade Utilities <br>
Install for Ubuntu  <br>
`sudo apt install dfu-util` <br>

Install for MacOS  <br>
`brew install dfu-util` <br>

Or build from source files <br>
https://github.com/siemens/dfu-util

example of flash:
```dfu-util -a 0 -s 0x08000000:leave -D your_firmware.bin```

or use `make flash` command after build firmware

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## Releases

[Open releases versions ](https://github.com/cvetaevvitaliy/telemetry-system/releases)

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## Open Source / Contributors

This software that is **open source** and is available free of charge without warranty to all users.

Big thanks to current contributors:

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*the document will be updated as the project develops

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