Example code for RAK811 nodes with GPS on board, transmitting their coordinates in the payload of the LoRaWAN packet in a format that is compatible with TTN Mapper.
License: MIT License
This code is possible thanks to the previous work done by @Ebiroll to program the RAK811 from Platformio. You can find his work here: https://github.com/Ebiroll/RAK811_BreakBoard
This code has been adapted to US915 band by @RussNelson https://github.com/RussNelson
This work is carried out within the project http://openmaker.eu/2018/02/05/fenps/ financed by the EU's HORIZON 2020 programme.
You can follow the instructions in the wiki page: https://github.com/jcaridadhdez/RAK811-tracker/wiki
When following wiki instructions under Ubuntu 19.10, I got this error in Platform.io, which prevent any build.
nicolas@morgan:~/sources/RAK811-tracker$ pio run
Warning! Ignore unknown configuration option `lib_dir` in section [env:rak811]
Warning! Ignore unknown configuration option `src_dir` in section [env:rak811]
Processing rak811 (platform: ststm32; board: rak811; framework: cmsis)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Error: Traceback (most recent call last):
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/__main__.py", line 102, in main
cli() # pylint: disable=no-value-for-parameter
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/core.py", line 764, in __call__
return self.main(*args, **kwargs)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/commands/__init__.py", line 44, in invoke
return super(PlatformioCLI, self).invoke(ctx)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/commands/run/command.py", line 138, in cli
is_test_running,
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/commands/run/command.py", line 170, in process_env
result = {"env": name, "duration": time(), "succeeded": ep.process()}
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/commands/run/processor.py", line 80, in process
result = p.run(build_vars, build_targets, self.silent, self.verbose, self.jobs)
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/managers/platform.py", line 383, in run
self.configure_default_packages(options, targets)
File "/home/nicolas/.platformio/platforms/ststm32/platform.py", line 34, in configure_default_packages
"board")).get("upload.protocol") or ""
File "/home/nicolas/.platformio/penv/lib/python3.7/site-packages/platformio/managers/platform.py", line 731, in get
raise KeyError("Invalid board option '%s'" % path)
KeyError: "Invalid board option 'upload.protocol'"
An idea how to fix this? I'm not used to Platform.io, so that might be trivial...
I'm unsure about programming the board as I still can't get it to work on my Ubuntu computer.
Is it necessary to change the jump in the corner of the board as is shown in the photos here:
http://support.rakwireless.com/topic/183/rak811-tracker-howto/28
UartMcuPutBuffer function is missing from the code, it is defined in uart_board.h but is not present in the .c file, thus some things can not be done, like writing to GPS
Code should be here:
I have tried adding the missing function, however I mange to hang the board by doing so:
uint8_t UartMcuPutBuffer( Uart_t *obj, uint8_t *buffer, uint16_t size )
{
if( IsFifoFull( &obj->FifoTx ) == false )
{
BoardDisableIrq( );
for(uint8_t i=0;i<size;i++){
FifoPush( &obj->FifoTx, buffer[i]);
}
BoardEnableIrq( );
// Trig UART Tx interrupt to start sending the FIFO contents.
__HAL_UART_ENABLE_IT( &UartContext[UART_1].UartHandle, USART_IT_TXE );
return 0; // OK
}
return 1; // Busy
}
In gps.c:
int8_t GpsGetLatestGpsHorizontalDilution (void)
{
BoardDisableIrq( );
if( HasFix == true )
{
Hdop = atoi( NmeaGpsData.NmeaHorizontalDilution );
}
else
{
Hdop = 0xFFFF;
}
BoardEnableIrq( );
return Hdop;
}
We should change this to
double GpsGetLatestGpsHorizontalDilution (void)
and parse a float, not an int
Hdop = atof( NmeaGpsData.NmeaHorizontalDilution );
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