ESP8266 Community Forum

To build a simple ESP8266 wifi circuit board.
Use typical 3.7V Lithium-Ion USB Rechargable battery.
Android app showing % of battery charge left.
Any demo kit readily avaulable?
Please tell us where to find such simple kits and any source codes available?
Thank you.

Doesn't look like any ready-made app is available. Only this type of tutorials can be found: https://theiotprojects.com/esp8266-moni ... using-iot/

Thank you. This is quite helpful.
Not exact type of Mobile phone USD rechargable 3.8V 1200mAh Li-ion batteries.
Wonder why not use as simple and useful learning tool in educational class room area.
Components are readily available, and helpful learning for understanding simple daily mobile battery usages.