can anyone help me? my nextion display only shows a black screen when i power it up and a flickering white line
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Please post you sketch, using code tags when you do, and a schematic of your project showing all components and interconnections
i powered the nextion using this diagram
loaded a simple gauge tft on my micro sd
But only get this from the nextion
Did you remember to connect the ground on the external power supply to the ground of the Arduino?
Post the exact type of nextion-display that you have. "Nextion intelligent 7 inch" is to unprecise
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