Learn Arduino?


New member
I have an ESP32 sitting here on the bench , have been trying to work out for a while what to do with it


Staff member
I have been playing with this led matrix code uploads fine but this is all I get any ideas??
Are you using the specified pins? It does make use of the SPI hardware I believe.
Looking at the picture, I'm unsure of your power connections.
The LED panels I have run on 5V only and it does look like you have maybe 12V connected as the Arduino barrel jack power seems to be the same as the panels. And the Arduino barrel jack needs to be at least 7V, not 5V.
Your Arduino will run ok on the laptop USB power but the LED panels will not.
Can you please clear up the connections?
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