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Every character lands at a specific spot on the screen. Controlling the cursor lets you place text exactly where you want it. 🎯

The 16 columns are numbered 0 to 15, left to right. Column 0 is the first character on a line.

The two rows are 0 and 1. Row 0 is the top line and row 1 is the bottom line.

Use setCursor to jump to a column and row before printing. The arguments are column first, then row.

After setCursor, the next lcd.print() starts exactly where you placed the cursor instead of the top-left.

Print a label on row 0, move the cursor to row 1, then print a value. That gives you a tidy two-line layout.

To center a word, set the cursor to a higher column so the text starts further from the left edge.

lcd.print also accepts numbers, not just text. Pass a variable and the value shows up directly on screen.

Old text does not vanish on its own. If a new value is shorter, stray old digits can linger behind it.

Print extra spaces after a short value, or clear that area, so the previous longer text is fully covered.

Calling lcd.home() sends the cursor back to column 0, row 0 without clearing the existing text.

You want text to appear on the bottom-left of a 16x2 LCD. Which call positions the cursor there?

You can now place text anywhere with setCursor, remembering column then row from zero, and pad with spaces to clear old characters. ✅