PDF datasheet for the PSE12864URT-005L01 display module, about 4.87 MB. The 12864 in the code usually denotes a 128x64 dot graphic LCD, and a near-identical MRT variant exists, suggesting different colour or backlight options; the name does not explain the letters. Expect the pinout, controller details, supply and contrast voltages, backlight ratings and outline drawing. Use it to wire, test or replace the module. Compare the full code on the module, since the URT and MRT versions may differ electrically.
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