Schools could be interested in this very inexpensive device as students may be motivated to learn to control things with their phone.
The demo covers a lot of subjects: input and output, digital and analog sensors, electrical, electronics, software automation control programming and web page definition html code.
Educational Automation Demo Powerpoint https://drive.google.com/file/d/1PVuff2kNN_D7mrC-jY19TZQqK5vQJKH4/view?usp=sharing
To make it portable you also need a router set up with the network login and password that the nodemcu uses to connect.
Educational Automation Demo Program used for demo: https://drive.google.com/file/d/1z7R1Ma1b5IuJ9fYYz6TzYRvzoOIb0ILN/view?usp=sharing
Libraries needed for demo program. Copy to programming software Arduino IDE libraries directory. https://drive.google.com/drive/folders/1GPZD_qV8__Jr9uF65v-XsCJDsuBfm4Zc?usp=sharing
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