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12 votes

Raspberry Pi DPI only works over short distances. Why?

All cables have a length limit. When you exceed that length limit, the signals in the cable attenuate due to resistance of the cable, get deformed due to capacitance and inductance in the cable, and ...
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5 votes

Raspberry Pi DPI only works over short distances. Why?

Your Hyperpixel has a resolution of 800 x 480 x 60fps, so the data rate is 23,040,000 pixels per second, plus some gaps for synchronisation. You can't send such a fast signal over an arbitrarily long ...
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2 votes

Raspberry Pi DPI only works over short distances. Why?

Think about what else is connected to your Pi which should be 3.5m away from the screen. Are those USB devices? Some I2C sensors? A power supply? It could be that your best option is to keep the ...
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1 vote

Raspberry Pi DPI only works over short distances. Why?

The bottom line is that DPI was simply not designed for those kinds of distances. It might be possible to stretch it out by building something like a custom cable with individually screened wires (or ...
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