So I am completely new to this, all I have done so far is hook up addressable LED strips. I got this cheap little screen to practice on, and I can't find any good tutorials for the nano. This diagram looks very helpful, but I can't figure out what to do with the BL pin. Does NC mean not connected? If so will the back light still light up? I'm using an adjustable power supply, I plan on using 5 volts. What I gather here is we use resistors and hook it up to the 3.3 volt. Is that correct? Thanks in advance for any help. 😁