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There is an easier way to specify a 13871-element bytearray:

_data2send=bytearray(13871)

Then populate the few nonzero entries.

However this is likely to be problematic on an ESP8266 which has limited RAM. You may need to send each row as several shorter SPI transfers. Managing a 640x480 color display on an ESP8266 is likely to be quite difficult.

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@Hacbakk12
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@jimmo
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@jimmo
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