Thingspeak

Configuration

Configuration key	Build flag	Description
	`THINGSPEAK_SUPPORT`	(default: `1`)
`tspkEnabled`	`THINGSPEAK_ENABLED`	(default: `0`) Enable Thingspeak client on boot and try to write data to the API
`tspkKey`	`THINGSPEAK_APIKEY`	(default: `""`) Channel API key
`tspkClear`	`THINGSPEAK_CLEAR_CACHE`	(default: `1`) Send all of latest values for each field instead of sending only recently updated fields
`tspkRelayN`		(default: `0`) Send N'th relay to the specified field
`tspkMagnitudeN`		(default: `0`) Send N'th magnitude to the specified field

If you're looking for support:

Issues: this is the most dynamic channel at the moment, you might find an answer to your question by searching open or closed issues.
Wiki pages: might not be as up-to-date as we all would like (hey, you can also contribute in the documentation!).
Gitter channel: you have better chances to get fast answers from project contributors or other ESPurna users. (also available with any Matrix client!)
Issue a question: as a last resort, you can open new question issue on GitHub. Just remember: the more info you provide the more chances you'll have to get an accurate answer.