YAETM

It has been stable for a few days now. I think it's time to etch out a more permanent board for it and have it report to my Rpi instead of ThingSpeak. It was a simple but fun project and I learned quite about about these tiny little wonders. Next up I need to control my sprinkler pump / valve... I have a pretty good idea how I'm gonna crack that one!

Got a DHT22 connected. Same connections but different code. See the github link.

Accuracy and reliability seems much better.

Initial wiring was pretty much the same thing you would see anywhere. I could not find my 3.3v ttl converter so I used a Red LED and a 10k resistor on the RX of the ESP8266 (TX from usb-ttl converter) to try and stay in the 3.3v ballpark. I was able to flash with node-mcu (boot the module with GPOI0 LOW) . All went well and now it's time to learn what this whole .lua script thing is.

Any way here are some of the resources I used.

• NodeMcu flash utility https://github.com/nodemcu/nodemcu-flasher
• Scary 5v to 3.3v circuit Image
• http://www.electrodragon.com/w/Wi07c