Thank you, Bartłomiej. I hope I fixed all of them in this post now!

Hi Karl

Thank you for your kind words. Its nice to see that my documentation helps other people. That is the best motivation to keep writing;-). About the prototyping question: up until now I have been more of a researcher than applicator. So out of convenience I'm mostly using the NodeMCU module even if running it for a long time. The problem for me with the ESP-12 for me is there incompatibility with the standard hole grid. And since I wouldn't call my self a great solderer I would go the easy way and take an ESP-201 since they have almost the same price but are easily mountable on a prototyping PCB

I've been reading through your blogs over the past few day and I think they're a fantastic resource – thanks for sharing your experiences with us.

I've started playing with the nodemcu unit lately – do you use the actual unit in your projects, or just use it for prototyping, and then switch to a standard ESP device like the ESP-12 for the final version?

Hi David
Yes, it does. Please have a look at https://github.com/squix78/esp8266-projects/tree/master/arduino-ide
There are a few projects that use (and contain) my attempt of a OLED I2C library for the Arduino IDE. Especially look at the weather-station-v2 subfolder, since this is the rewrite for the Arduino platform

I do have one question though – you say you rewrote your code for the Arduino IDE instead? Does that code using the Arduino IDE talk connect to an OLED display? I'm trying to do the same thing, but cannot make any OLED display work! I'd be keen to see any sample code which might help me?

Many Thanks

Thanks,
Adrian