You can check this "Led display Digital Voltmeter":
**broken link removed**
It uses ICL7107, schematics, pcb, description is availaible.
https://www.electronics-lab.com/projects/test/014/index.html
Hope you like it.
**broken link removed**
It uses ICL7107, schematics, pcb, description is availaible.
https://www.electronics-lab.com/projects/test/014/index.html
Hope you like it.