ফোনে চার্জ ফুল হলে স্বয়ংক্রিয়ভাবে চার্জিং বন্ধ হবে||Auto disconnect phone charger ||Engineer's lab

code link: https://drive.google.com/file/d/1lf4v... 1st pin is emitter, 2nd is base and 3rd is collector Arduino based Smartphone Charging Controller is implemented here which a simple project for controlling the amount of time you charge your mobile phone. Using this project, you can plug in your phone to the charger, set the time for which your phone gets charged and forget as the project will automatically disconnect power to the charger. This project is very useful for people who tend to charge the phone during night time or those who often forget that they plugged in the phone to the charger.