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MPR 121 Test Issue
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

MPR 121 Test Issue

by ak23ka on Mon May 06, 2019 5:33 am

Hi everyone!

I am interfacing MPR 121 with Arduino Uno. I downloaded Adafruit MPR 121 library and ran MPR121 test but it did not respond. I have tried several other libraries but none of those worked. I didn't find any solution to the similar questions asked on various Forums. I have few screenshots detailing the issue i am facing.

Here are the connections of MPR 121 with Arduino uno
IMG20190506144911.jpg (719.11 KiB) Viewed 149 times

Screenshot (1).png
The Issue - It doesn't respond. Only if I detach it, it says MPR121 not found
Screenshot (1).png (128.24 KiB) Viewed 149 times

I am using following Links as reference for Interconnections and code

Kindly Help. I am open to suggestions for alternatives

Thanks in advance

Posts: 1
Joined: Mon May 06, 2019 5:04 am

Re: MPR 121 Test Issue

by adafruit_support_carter on Mon May 06, 2019 4:25 pm

If you get one of these:
and have similar issues, let us know.

Posts: 13163
Joined: Tue Nov 29, 2016 2:45 pm

Please be positive and constructive with your questions and comments.