Digital Voltmeter for a variable power supply..!!!

[mhtariq]

Hey there..!!!!
This is my very first post on any forum.

I want to know that what should I do to make my own digital voltmeter for my Power supply project.
Thnx in advance.
regards;
MHT

 

[alexan_e]

You can do it with an mcu (search google using pic or avr voltmeter)
A simple PIC LCD volt meter project.
AVR Project : Digital Voltmeter - Microcontroller Project Circuit

Also check this thread
https://www.edaboard.com/threads/195068/

Alex

 

[srizbf]

you have not specified the voltage range of power supply.

whatever it is , i suggest you to choose a 7106 or 7107 based dvm circuit.
it will reduce your work on DVM and concentrate on supply.

most electonics stores have a ready made pcb available for that.

ask for digital panel meter kit.

 

[RCinFLA]

3.5 digit LCD modules are cheaper then analog meters. They are +/-200 mVdc sensitivity.

They are available from multiple sources.

Just be careful on selection of power option. Many require isolated supply although power requirement is low, typically 9V @ <1 mA.

Available with or without backlight. Also LED modules are available.

**broken link removed**

 

[mhtariq]

hey dude...!!
thanks alot, alexan_e