The library at https://github.com/jojo-/py-cayenne-lpp already has all of the Cayenne LPP integrated

Enable the UART port on the GPIO Pins and if a 3/3b+ then also change the uart.

Line 36 of iotloranode.py

File "carTest.py", line 15, in
node.send_string_packet("Hello World")
File "/home/pi/rak811-python/iotloranode.py", line 200, in send_string_packet
self.uart_tx(command)
File "/home/pi/rak811-python/iotloranode.py", line 74, in uart_tx
self.serial_write(str.encode(command))
TypeError: descriptor 'encode' requires a 'str' object but received a 'unicode'

The python library needs new commands to set the regions.

Instead of using a command and specifically setting it commands such as

node.region(node.eu868)

Install python-serial if it is a Raspberry Pi with the installation process

For some reason the code is set to use /ttyUSB0

On RPi 3, 3B+, 3A+ & Zero W the /dev/ttyAMA0 port is used by the bluetooth adaptor as default.

/dev/serial0 seems to route AMA0 or the Miniuart port depending on what is "connected" to the GPIO at the time.

While the hardware UART is usually preferred if we change to using /dev/serial0 then if the user hasn't configured it it should still work.

I believe it'll be best to change to using /dev/serial0 for the library. At the same time adding a way for the user to specify the port manually if they wish.

Before implementing I'll do an approximate 24 hour test transmitting continuously for 24 Hours. This'll be a total of around 12,300 Times.

If there's little to no issues then this change will be made.