Ok sorry if i didn't format my post right this is the first time i've posted to this forum. I'm using an Arduino mega 2560 (in specific elegoo 2560) along with a DS18B20 thermocouple. the only thing i excluded from my code above was the bitmap image, i actually can't even post the entire code because it exceeds the character limit. i didn't say i understand the code i said i understand how it works. i just don't understand why it works fine with the other code but not with mine, even though they are almost exactly the same.