Battery monitoring for Arduino UNO

Using Arduino Project Guidance
1

Hi all!

We're working on a project with the Arduino UNO which involves monitoring the battery. We plan to make the arduino send us a text or maybe add an LED to notify that the battery is running out.

Any ideas how we can do that? is there some sort of circuit or device for us to monitor the battery? Will the type of battery to be used matter?

We can implement the sending of text or LED notification. We're confused how we can get the battery monitoring to work.

Sorry if there's an existing thread for this query. I can't seem to find any answers.

Any help will do. Thanks! :slight_smile:

2

What kind of battery do you need to monitor?
Try:
Google arduino battery monitor

3

There's a "Catch-22". The analogRead values are referenced to the Arduino Vcc which means that if the Vcc was 4.50V dc an input voltzge of 4.50 V dc would report a full scsle count of 1023. This means that your battery monitor would only be accurate while the Vcc was 5.00 V dc and then it would report values that would not convert correctly.