Digital ammeter design

[adeel ur rehman]

Hi
i am a university student and i have a project in which i have to use a digital ammeter and i want to built it myself is there any one which can help me.plz send me circuit diagram of digital ammeter with all details of components. thanks in advance

 

[erio]

AC or DC?
this may help you

https://www.edaboard.com/threads/187262/

 

[Tahmid]

Hi,
You have to use a shunt resistor or hall-effect sensor for current to voltage conversion. Shunt resistor can be used in small ammeters. The current-to-voltage conversion is done according to the formula V=IR, where V=the voltage, I=current passed, R=shunt resistance. I=V/R. Use this in your microcontroller code by reading the V using ADC and R is given. So, this is how you should do it. Then decide to send this to the display, either 7-segment or LCD.

Hope this helps.
Tahmid.

---------- Post added at 06:29 ---------- Previous post was at 06:29 ----------

And also decide which microcontroller to use along with language and compiler.