Arduino Due w/LCD 20 x 4 cursor location

RE: Arduino Due w/LCD 20 x 4 cursor location

neilk — Wed, 10 Jul 2013 20:31:51 GMT

I tried (some of) your code on a UNO, driving a 16 x 2 LCD and I was surprised to find that it behaved perfectly without the lcd.setCursor(0,0)

Like David Shaddock, I would have assumed that it was necessary to reset the cursor to (0,0) each time you go round the loop. Apparently not on a 16 x 2, but maybe it is necessary on a 20 x 4.

Best wishes

Neil

RE: Arduino Due w/LCD 20 x 4 cursor location

Former Member — Mon, 01 Jul 2013 13:12:52 GMT

Just under the lcd.clear(); line, you have commented out the lcd.setCursor command. So analog voltage A0 is going to print pretty much wherever the cursor happens to be. It seems to me that clearing the lcd doesn't restore the cursor to a fixed position, but I haven't worked with the 20X4 display yet; it all depends on what the lcd library says to do. It may leave the cursor in a random place, or it may remain where it landed last.