LoRa: add retries if joinOTAA(...) fails

[pennam]

Issue: user reported problems on multiple boards not connecting to the network and to ArduinoIoTCloud. The boards are printing the following message on the serial monitor:

Something went wrong; are you indoor? Move near a window, then reset and retry.

and after they start looping without doing nothing.

Proposed solution: This patch adds automatic retries if joinOTAA(...) fails, this is very similar to what we are doing in the CONNECTING state of WiFiConnectionHandler calling WiFi.begin(...) until board gets connected.

[github-actions]

Memory usage change @ a2746dc

Board	flash	%	RAM for global variables	%
arduino:mbed:envie_m7	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_nano:nanorp2040connect	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:mbed_nicla:nicla_vision	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:mkr1000	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:mkrgsm1400	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:mkrnb1500	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:mkrwan1300	🔺 +88 - +88	+0.03 - +0.03	0 - 0	0.0 - 0.0
arduino:samd:mkrwan1310	🔺 +88 - +88	+0.03 - +0.03	0 - 0	0.0 - 0.0
arduino:samd:mkrwifi1010	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
arduino:samd:nano_33_iot	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
esp32:esp32:esp32	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0
esp8266:esp8266:huzzah	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/ConnectionHandlerDemo flash	%	examples/ConnectionHandlerDemo RAM for global variables	%
arduino:mbed:envie_m7	0	0.0	0	0.0
arduino:mbed_nano:nanorp2040connect	0	0.0	0	0.0
arduino:mbed_nicla:nicla_vision	0	0.0	0	0.0
arduino:samd:mkr1000	0	0.0	0	0.0
arduino:samd:mkrgsm1400	0	0.0	0	0.0
arduino:samd:mkrnb1500	0	0.0	0	0.0
arduino:samd:mkrwan1300	88	0.03	0	0.0
arduino:samd:mkrwan1310	88	0.03	0	0.0
arduino:samd:mkrwifi1010	0	0.0	0	0.0
arduino:samd:nano_33_iot	0	0.0	0	0.0
esp32:esp32:esp32	0	0.0	0	0.0
esp8266:esp8266:huzzah	0	0.0	0	0.0

Click for full report CSV

Board,examples/ConnectionHandlerDemo<br>flash,%,examples/ConnectionHandlerDemo<br>RAM for global variables,%
arduino:mbed:envie_m7,0,0.0,0,0.0
arduino:mbed_nano:nanorp2040connect,0,0.0,0,0.0
arduino:mbed_nicla:nicla_vision,0,0.0,0,0.0
arduino:samd:mkr1000,0,0.0,0,0.0
arduino:samd:mkrgsm1400,0,0.0,0,0.0
arduino:samd:mkrnb1500,0,0.0,0,0.0
arduino:samd:mkrwan1300,88,0.03,0,0.0
arduino:samd:mkrwan1310,88,0.03,0,0.0
arduino:samd:mkrwifi1010,0,0.0,0,0.0
arduino:samd:nano_33_iot,0,0.0,0,0.0
esp32:esp32:esp32,0,0.0,0,0.0
esp8266:esp8266:huzzah,0,0.0,0,0.0

[aentinger]

That's definitely a good idea 👍