Go Down

Topic: AA Undershield with battery monitor? (Read 1 time) previous topic - next topic


I have a project I need to run off batteries. I've built the AA Undershield (http://www.instructables.com/id/The-Arduino-AA-Undershield/) and it gives me the runtime I need (> 20 hours), so far so good.

I was thinking about connecting the +3v from the batteries to an analog port to measure battery life. I think this should work, but I don't know enough about hardware to make sure this isn't a bad idea.

Is there any reason I shouldn't do this?

Thanks in advance.
http://en.wiktionary.org/wiki/magagna <-- My last name.  Pretty apt.


The Ground pin of the Arduino is connected to the negative terminal of the battery so you should be able to run positive side of the ~3V battery to an Arduino analog input without problem.
Send Bitcoin tips to: 1G2qoGwMRXx8az71DVP1E81jShxtbSh5Hp


http://en.wiktionary.org/wiki/magagna <-- My last name.  Pretty apt.

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131