Oops, I must have had something configured wrongly last night. I now get an output on the serial monitor. It is confirming a connection attempt and that the connection fails.
I have double checked the channel setup and the API key and can see no errors, so am a little stuck for further ideas! I have a standard home network setup, so the compact Rx is behind a router. However, I don't think it's a network problem as the WU upload works fine: https://www.wunderground.com/dashboard/pws/ISHIRENE2 and my Cumulus uploads are also working: http://www.shirenewtonweather.info/
If you have any more ideas it would be much appreciated.
Zak.
P.S The calibration of the CO2 sensor seemed to work, but I think it is drifting a bit. Much of the reason for getting ThingSpeak working is to see if the drift is normal diurnal variation that you have discussed in other posts, or if I have a sensor problem.
I have double checked the channel setup and the API key and can see no errors, so am a little stuck for further ideas! I have a standard home network setup, so the compact Rx is behind a router. However, I don't think it's a network problem as the WU upload works fine: https://www.wunderground.com/dashboard/pws/ISHIRENE2 and my Cumulus uploads are also working: http://www.shirenewtonweather.info/
If you have any more ideas it would be much appreciated.

Zak.
P.S The calibration of the CO2 sensor seemed to work, but I think it is drifting a bit. Much of the reason for getting ThingSpeak working is to see if the drift is normal diurnal variation that you have discussed in other posts, or if I have a sensor problem.

