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RGB 32 x64 Matrix not Working using arduino metro.
Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.

Re: RGB 32 x64 Matrix not Working using arduino metro.

by adafruit_support_bill on Mon May 24, 2021 4:52 pm

The assembly looks fine. Measure the voltage between the GND and VIN pins on the shield.

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Re: RGB 32 x64 Matrix not Working using arduino metro.

by labtec21 on Mon May 24, 2021 5:04 pm

here is the voltage - vin and grn.
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Re: RGB 32 x64 Matrix not Working using arduino metro.

by adafruit_support_bill on Mon May 24, 2021 5:18 pm

Have you tried powering from USB as described here? viewtopic.php?f=48&t=172215#p842252

The dropout voltage for the regulator on the M0 can easily exceed 1v under load.

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Re: RGB 32 x64 Matrix not Working using arduino metro.

by labtec21 on Thu May 27, 2021 4:03 am

it doesn't light up any led using that method.

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Re: RGB 32 x64 Matrix not Working using arduino metro.

by adafruit_support_bill on Thu May 27, 2021 4:56 am

What voltage do you see at the panel when powered via USB?

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Re: RGB 32 x64 Matrix not Working using arduino metro.

by labtec21 on Thu May 27, 2021 10:33 am

here the voltage measured at the input to the matrix
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Re: RGB 32 x64 Matrix not Working using arduino metro.

by adafruit_support_bill on Thu May 27, 2021 10:44 am

OK. It looks like everything is assembled and connected right and you have good power. That leaves the matrix itself. We can try replacing it. Please contact support@adafruit.com with a link to this thread.

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Please be positive and constructive with your questions and comments.