老外的智能充电器，里面描述经典充电器的制作-Foreigners smart charger, which describes the production of the classic Charger

基于单片机的手机充电器，可以实现预充，快充，充完提醒等功能。-Microcontroller-based mobile phone charger, you can achieve pre-charge, fast charge, after charge reminders and other functions.