After racking my brains over a display that was $4 cheaper, I swapped it out for one of these. I used the library and some demo code from the SunFounder website. When I first turned everything on I had the same crap as my previous display, but then it flashed and I saw Hello World! I had the display part of my code and it worked in no time and my display doesn't show the weird nested addressing that some others have reported. I hooked it up with four wires and no extra resistors and it works like a charm. BTW, the built-in font didn't have a degree symbol, so I created one. , 0b01001, 0b01001, 0b00110, 0b00000, 0b00000, 0b00000, 0b00000};// create custom degree symbol lcd.createChar(0, DegreeSymbol);lcd.print((char)0);lcd.print("F");
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