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Guest Jean

MPR121 Capacitive Touch Shield does not respond

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Guest Jean

Hello,

 

I bought breakout board for MPR121 from local supplier.

 

I downloaded the sample code from your website, but it does not detect the touches. Is there a missing instruction?

 

Also, here http://www.linksprite.com/article/shownews.php?lang=en&id=118 you say:  interrupt------D2. but on the picture on the same page, there is no connection from the chip going to D2? how is it supposed to work?

 

Thanks in advance.

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Guest Jean

Actually, looking at the bottom of the PCB, I see that D2 is connected. So that is not the issue.

 

I am testing with a DFRobot Duemilanove. Is this an issue?

 

Can I connect to a Pro Mini?

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Actually, looking at the bottom of the PCB, I see that D2 is connected. So that is not the issue.

 

I am testing with a DFRobot Duemilanove. Is this an issue?

 

Can I connect to a Pro Mini?

We tested this shield with Arduino Uno, it can work well.

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