moving message(LCD)

[eliorap]

I don't now how to do a moving message with PBP with a lcd 16*2 and pic 16f84 I find one but I need
to Scroll a large message in one line. excuseme I speak a little english

[robban]

I haven't done any Basic programming for a long time but you have to construct a loop where You increment (or decrement depending wether You want to scroll left or right) the position - normally POS X - of the line in question.

Generic code

loop:
for POS X = (right + lenght of message) to 0
Print at POS X, "Hello"    ' where POS X is the rightmost position of the LCD
clearLCD
delay                          ' here you put the desired delay to make Yr. message readable
POS X = (POS X - 1)
next
Goto loop

Haven't tested it, hope it works. There are several ways to skin a cat...

[wacksbaby]

isn't it the Delay should be ahead of ClearLCD? and clear LCD may not be necessary because you can just over-write the characters

I haven't done any Basic programming for a long time but you have to construct a loop where You increment (or decrement depending wether You want to scroll left or right) the position - normally POS X - of the line in question.

Generic code

loop:
for POS X = (right + lenght of message) to 0
Print at POS X, "Hello"    ' where POS X is the rightmost position of the LCD
clearLCD
delay                          ' here you put the desired delay to make Yr. message readable
POS X = (POS X - 1)
next
Goto loop

Haven't tested it, hope it works. There are several ways to skin a cat...

[robban]

No You can't overwrite the previous moving message. it will be a blur...
When it comes to putting the delay after or before clearLSD, I think it's a matter of taste

Let me know when Your'e make it work and supply the code. This example could also be done with "bit-banging" and other techniques.