SR Tech and Tutorial

Hello friends welcome to my blog. In this blog we will learn about how to make Battery level indicator. Required Material  : - Item                   Quantity  Pcb                          1 LED                         4 Resistor 1k            4 Circuit Diagram / connection :- The circuit diagram of Battery level indicator is shown in above figure. Circuit Diagram is very simple . In this all LEDs are connected in series . Negative terminal of first led connect with positive terminal of second led and Negative terminal of second led is connect with the positive terminal of third led. And one wire is brought out from the positive terminal of first led. And resistance I connected in parallel ,one end of resistance is connect with the led and ano...