Here's how to verify the clock frequency on your Pro Mini
-
I received some 8Mhz Pro Mini's, and I wanted to verify that they are indeed 8Mhz.
Here's a test procedure that worked for me using an oscilliscope:
- Connect ground of test Probe to ground of Pro Mini
- Power up the Pro Mini
- Touch test probe to PB6 or PB7 of the mcu:
and you will get this, which verifies the frequency:
For some reason I was expecting a square wave, so I compared it to a 16Mhz Pro Mini from a different vendor:
and that one wasn't a square wave either, as you can see.
Regardless, I wanted to test frequency, and this worked for doing that.
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login