Example of a button push - originally for usage of a door bell notifier, but can be used for other thing. This code uses the Arduino IDE (1.6.7 at time of this writting), with the NodeMCU boards ...

I have tried numerous tutorials, Arduino examples and I cant get an SD to initialize. There is a card inserted that is formatted with exFAT and there is one file test.txt. Particularly SD Card Module ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...