Using a Pixaxe 28X1 and a Parallax LCD.
Can not program the backlight on a Parallax LCD to come on.
When I put the LCD to test mode, backlight on OK.
I read the manual for the LCD but did not help.
here is the code:
pause 1000
let pins = %11111111
serout 0,T2400,(1,2,"Hello World")
pause 200
serout 0,T2400,(124,157) ;turn on backlight
pause 200
end
Need a data sheet.
Give us a link to the data sheet that goes with the LCD. I’m sure it is something simple. Picaxe has a habit of sending serial data in funny ways.
LCD Backlight
Thanks for the reply Chris…It was something simple! Parallax LCD command for
backlight on is $11. Who knew? Actually found an updated manual with right info.
Here is Hexadecimal commands for the LCD
LCD_BKSPC = $08 ’ move cursor left
LCD_RT = $09 ’ move cursor right
LCD_LF = $0A ’ move cursor down 1 line
LCD_CLS = $0C ’ clear LCD (follow with 5 ms delay)
LCD_CR = $0D ’ move pos 0 of next line
LCD_BL_ON = $11 ’ backlight on
LCD_BL_OFF = $12 ’ backlight off
LCD_OFF = $15 ’ LCD off
LCD_ON1 = $16 ’ LCD on; cursor off, blink off
LCD_ON2 = $17 ’ LCD on; cursor off, blink on
LCD_ON3 = $18 ’ LCD on; cursor on, blink off
LCD_ON4 = $19 ’ LCD on; cursor on, blink on
LCD_LINE0 = $80 ’ move to line 1, column 0
LCD_LINE1 = $94 ’ move to line 2, column 0
LCD_LINE2 = $A8 ’ move to line 3, column 0
LCD_LINE3 = $BC ’ move to line 4, column 0
Thats the one!
That’s what I was saying with the picaxe thing. I can’t tell you how many times one little $ or # kept something from working.
