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Interesting on your greenhouse project. I have a couple of those ESP-8266 boards too. One day want to get them going as a remote temperature sensor too. Would be much easier for outside temperature measurement to have it wireless. Could then put it on the north side of my house. The Adafruit IO looks interesting, I'm only marginally happy with the dweet.io/freeboard.io combo, but it's been doing the job now for a year. I like the long term temperature graph that you are able to display. Perhaps it's time to update my setup.Thanks again for posting this version, it was very helpful getting mine going.
This was a very useful tutorial. I used it primarily to get started, and then a few other resources to get a prototype going with three temperature sensors, on two busses that updates dweet.io to create an on-line dashboard. It's not pretty, but it's working.