Digital Voltmeter
This is a Easy to use and Cheap DIY Voltmeter. Total cost of making this project is less than INR 200 or 2.5$ only.
Components List
The components needed for this project are listed below -
DIODE 4148x3
78L05 X1
ICL7107 X1
7SEG ANOT 0.56 X4
ICL7660 X1
CAP 100uF/16V X1
CAP 10uF/50V X2
CAP 104 X1
CAP 100P X1
CAP 224 X1
CAP 473 X1
CAP 103 X1
R 330 X1
R 100K X1
R 47K X1
R 1M X1
R 15K X1
R 10K X1
VR 10K X1
Circuit Diagram
This is the Circuit Diagram for the project.
PCB Design
Here is the PCB Design for this project.
Making Process
The PCB designing is done by EasyEDA.com and ordering is done from jlcpcb.com which is also the sponsors of this project. They provide best custom made pcbs for the least price in the market. Evenm they cut their prices so hurry up!
After getting the pcbs i Soldered all components in place and tested it with a battery. i compared both a bought one and the diy one. both are approximately same.
Its DONE
