ESP32/ESP8266 Issues

[r-devries]

Hi,
I have been working with your LoRaDuplex sketch and I ran into some issues.
I was able to get it running with a Leonardo with a Dragino LoRa radio, I was also able to get it running with a M0 basic Feather and LoRa Feather. When I tried to get it working with an ESP32 I could never get the radio initialized, and when I tried to get it running on an ESP8266 it would just keep resetting.
Soft WDT reset
ctx: cont
sp: 3ffef9f0 end: 3ffefbd0 offset: 01b0
>>>stack>>>
3ffefba0: 3fffdad0 3ffeea78 3ffeeb7c 40201f65
3ffefbb0: feefeffe 00000000 3ffeeb98 4020331c
3ffefbc0: feefeffe feefeffe 3ffeebb0 40100114
<<<stack<<<
I know the hardware works, but would there be an issue with the ESP32/ESP8266. I wouldn't think so but this has me stumped.
Any thoughts?

Thanks,

[FelixHr]

I am successfully using two LoRa sx1278 modules, these simple barebone ones from china, together with two Esp8266.
I also ran into some problems with the watchdog timer and the Esp resetting.
The issue was the while(true); loop if the Esp could not connect to the Lora module. The Esp gets stuck in the loop and the WDT timer resets the chip.
Try adding a yield(); command in the loop to give the Esp time to perform other stuff in the background.
And maybe check the pins you are using. The default pins 10, 9, 2 are not the ones labeled Gpio2 etc.
Hope that helps!

[r-devries]

Well I guess this one is user error.
I attached the CS to a wrong pin for both the ESP32 and the ESP8266.
The M0 I got correct and that's why it worked out of the gate.
Now I am able to send temperature and humidity readings.
Next step is to make one node a bridge for MQTT.
I will have to remember yield().
Thank you,

[sandeepmistry]

Closing this as resolved for now. @r-devries @FelixHr pull requests welcome for the yield suggestion.