My project is arduino based ammeter and am confused on what to do to make it measure upto 15 Amps. Please help. Thank you.
What are you confused with? What do you know? What did you search?
since arduino can't measure current in the range of 0 to 5 amps or so, what should i add to the existing circuit to make it read current in Amp range?. Is ACS712 Current Sensor a good idea?. am new to arduino so please help me. Thanks a lot.
Is it DC current or AC current? And what circuit are you measuring it from?
dc current. I am thinking to use power Supply because I want to have an easy means of validating the measurements on my Arduino.
You can get one of the acs712 modules.
Heres how you do it: How to measure current using Arduino and ACS712 current sensor
dc current. I am thinking to use power Supply because I want to have an easy means of validating the measurements on my Arduino.
Have you considered using a multimeter? Do you have a multimeter?
You'll generally need a known good meter to validate/calibrate the one you're building anyway.
Unless current measurement needs to be permanent part of your project (such as a power supply with built-in current monitoring), it doesn't make sense to build your own meter. That's especially true with current because measuring current (or building an ammeter) is tricky.