Tutorial: accurate ADC readings

Alessandro PaganelliJune 8th, 2012

Hardware Hacking guys propose this quick tutorial on how to improve the accuracy of Arduino’s ADC readings, by measuring the actual voltage rail used to supply the onboard microcontroller. At a glance, this can be done by measuring the internal 1.1V reference voltage (it is available for ATMega 168 and ATMega 328 only) and, then, by normalizing the ADC readings.

More details can be found here.

[Via: Hardware Hacking]

Leave a Reply

You must be logged in with your Arduino account to post a comment.

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!

Arduino
via Egeo 16
Torino, 10131
Italy