USB Battery Charger Circuit Pic16f629 microcontroller integrated with the computer’s USB port 1 100-1000 The AAA battery charging circuit charging time the battery current compared to 1-14 hours of battery is full time dual-color LED and buzzer and warning... Electronics Projects, USB Battery Charger Circuit with PIC16F629 "battery charger circuit, microchip projects, microcontroller projects, pic assembly example, " Date 2019/08/01