** Update 17/01/2023 **
** Since a lot of Lora code had been moved to official tinygo-driver repository, this project needs a major cleanup/rewrite. **
** Please have a look to the v2 branch for up-to-date news: **
https://github.com/ofauchon/zaza-tracker/tree/v2
ZAZA tracker project is an open-source alternative firmware for LGT92 Dragino Tracking device. It's 100% Golang/TinyGO code.
Two communication modes will be implemented:
- Lora mode : Mid-range positionning through some kind of Peer to peer Lora communication between two trackers)
- Lorawan mode : For long distance tracking ( GPS position are pushed on a Lorawan Network)
- Dual mode : Short and Long range communication at the same time
At the moment, It's composed of two modules you can flash independently on a LGT92 device :
- The "tracker" which determine location and send radio packets
- The "receiver" which listen to radio packets and help locate the tracker
The code is under heavy developpement and highly instable, please be kind.
Please send me a mail at [email protected] if you want to work on the project.
| Category | Task | Status |
|---|---|---|
| Hardware | TinyGO support for STM32L0x | DONE but not yet merged in upstream Tinygo |
| Hardware | LPUART1 for serial console | DONE Serial communication OK |
| Hardware | UART1 for L70 GPS | DONE : Serial communication OK |
| Hardware | RGB Led | DONE Individual LED control with GPIOs OK |
| Hardware | SX1276 SPI driver | DONE, SX1276 read/write register OK |
| Hardware | Push Button | DONE, Push and release events handled through external interrupt OK |
| Hardware | STM32L0 Eeprom support | DONE Eeprom Read/Write is OK. |
| Hardware | Reduce power consumption with Low power mode | TO BE DONE |
| Hardware | Watchdog and hardware reset | TO BE DONE |
| Radio | Lorawan lightweight stack | WIP First Lorawan Join Requests packet implementation OK. Next: Receive Join Accept packets and send real data |
| Protocols | GPS Sentence decoding | DONE Getting a GPS Fix in about 30-60s |
| Protocols | serial console CLI and AT Commands | TO BE DONE |
| Other | Code cleanup | TO BE DONE |
| Other | Documentation (Build, flash, contribute) | TO BE DONE |
- Prerequisite
- A working TinyGO environnement with LGT92/STM32L0x support (*), with https://github.com/tinygo-org/tinygo/pull/1430 patch
- SWD interface (STLink or BlackMagic) to flash the firmware on LGT92
- TTL USART interface to connect to serial console
(*) Still work in progress, not yet merged in TinyGo official repositories
- Build and flash
cd receiver/
Run "make" to build the firmware
Run "make flash" to flash (with BlackMagic Probe)
Run "make term" to open serial console (with blackMagic Probe)
| Task |
|---|
| Improve serial CLI commands |
| Save non-volatile configuration in eeprom |
| Receiver/Tracker merge or code factorisation + cleanup |
| Implement low power modes to save battery |
| Use accelerometer to improve location or moving detection |
| Tracker listening for notification packets |
| Over the air (Lora) firmware updates ? |