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Ammeter using Arduino

Submitted by Devanshu on Mon, 10/08/2018 - 12:16
Embedded

What will I do if I want to make an ammeter of range 0-2A with input voltage 5V

 

John_Kripto

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What will you do? 

That is supposed to be answered by yourself.

If I am suppose to  advice, then I would ask you to do some research on the topic before posting a plain question on the forum like this. People are here to aid you not to lift you from scratch 

   Joined August 11, 2018      35
Saturday at 01:52 PM

Devanshu

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Actually, sir, I have followed the step that is described in this link https://circuitdigest.com/microcontroller-projects/arduino-ammeter and take 2.4 ohms resistor to get the desired current but not getting any thing

   Joined October 08, 2018      5
Monday at 12:11 PM

Jayant

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Hi Devanshu,

For an Ammeter that can measure 0-2A you can either follow the shunt resistor method like this https://circuitdigest.com/microcontroller-projects/arduino-ammeter if you need more understanding 

OR

You can use readily available sensors like ACS712 will is hall effect based and is very easy to use. A similar project link is given below

https://circuitdigest.com/microcontroller-projects/iot-electricity-ener…

 

The voltage rating does not matter for the Ammeter circuit, so you can use it for 5V as well 

 

   Joined May 19, 2015      213
Tuesday at 03:45 PM

Devanshu

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Thanks for the reply I follow the link that you have mentioned but What can I do if I don't have shunt resistor of the same value that is mentioned in the article.

   Joined October 08, 2018      5
Monday at 12:11 PM

Aswinth Raj

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What value resistors do you have? Try making up the required values by using resistors in series or parallel.

If you put resistors in series they will add up in value and if you put then in parallel they value will decrease. You can use these two links to calculate the required value.

https://circuitdigest.com/calculators/resistors-in-series-calculator For Resistor in Series

https://circuitdigest.com/calculators/resistors-in-parallel-calculator For Resistor in Parallel 

Also make sure the power rating is high enough for 2A to flow through it.

Happy Learning!!

   Joined August 16, 2016      998
Tuesday at 12:29 AM

Devanshu

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Right now I'm using 2.4 ohm resistor 

   Joined October 08, 2018      5
Monday at 12:11 PM

Devanshu

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Actually, I 'm following the step by step procedure given in the article of ammeter using Arduino but don't get anything on the LCD. please help me out

 

   Joined October 08, 2018      5
Monday at 12:11 PM