LCD BARgraphs

[earltyso]

DT,
Really nice work! I will be using this on several of my A2D projects!!

[Darrel Taylor]

Hope they work out for you.

You might also want to check out this one ...

Bargraph query thread
http://www.pbpgroup.com/modules/newb..._id=37&forum=2
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[karamastik]

Hello !
First of all , thanks for the LCD codes.
I applied the code below , it works fine ; but at the first row ; " Value= XXX " always flickering ; like something is writing over the " Value = XXXX " and it's always flickering.
What is the problem ?

@ DEVICE pic16F877 
@ DEVICE pic16F877, WDT_on 
@ DEVICE pic16F877, PWRT_ON 
@ DEVICE pic16F877, PROTECT_OFF 
@ DEVICE pic16F877, HS_OSC 

TRISA=%00000001
TRISB=0 
TRISE=0 
INCLUDE "LCDbar_INC.bas" 

ham var word 


DEFINE LCD_DREG PORTB 
DEFINE LCD_DBIT 0 
DEFINE LCD_RSREG PORTE 
DEFINE LCD_RSBIT 1 
DEFINE LCD_EREG PORTE 
DEFINE LCD_EBIT 0 
DEFINE LCD_RWREG PORTE 
DEFINE LCD_RWBIT 2 
DEFINE LCD_BITS 8 
DEFINE LCD_LINES 2 
DEFINE LCD_COMMANDUS 1000 
DEFINE LCD_DATAUS 225 
DEFINE ADC_BITS 10 
DEFINE ADC_CLOCK 2 
DEFINE ADC_SAMPLEUS 100 

ADCON1=%10001110 
LOW PORTE.2 

LCDOUT $FE,1 
PAUSE 200 

Loop1:
    ADCIN  0, ham
    ham=1023-ham
    LCDOUT $FE,2,"Value = ",DEC ham,"   "
    ; syntax- BARgraph   Value, Row, Col, Width, Range, Style
    @         BARgraph  _ham,   2,   0,    16,   1023,  lines
    PAUSE 50
Goto Loop1

END

[skimask]

" Value= XXX " always flickering ; like something is writing over the " Value = XXXX " and it's always flickering.

Loop1:
    ADCIN  0, ham
    ham=1023-ham
    LCDOUT $FE,2,"Value = ",DEC ham,"   "
    ; syntax- BARgraph   Value, Row, Col, Width, Range, Style
    @         BARgraph  _ham,   2,   0,    16,   1023,  lines
    PAUSE 50
Goto Loop1

That's because something is always overwriting Value = XXXX. VALUE = XXXX is always overwriting VALUE = XXXX.
Try ONLY overwriting just the value not the whole string.

[mister_e]

Pause 50 is a bit low, try to increase it a little bit more.

[Darrel Taylor]

karamastik,

LCD_COMMANDUS 1000 seems a little low.

On most displays, the Home command ($FE,2) takes 1.6ms or 1600us.
Try increasing it to 2000, some displays need even more than that.

LCD_DATAUS 225 is pretty High. Should be around 50.
If this one is too high, it won't cause a problem. It'll just slow things down unnecessarily.
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