LCD BARgraphs

[mister_e]

well, once you have the lcd working.. it's just a matter to have few IF-THEN conditions with your ADC value and few HIGH/LOW lines, and you should be in business... maybe i've misundertood something?

[mackrackit]

Does anyone know any code that will do that or give me a starting place to play with?

I like this one. http://www.rentron.com/PICX2.htm

It is a little more complicated than ADCIN, but it is still the method I use.
Follow the code with the data sheet and it should become clear how the ADC works. Complete control.

[karenhornby]

well, once you have the lcd working.. it's just a matter to have few IF-THEN conditions with your ADC value and few HIGH/LOW lines, and you should be in business... maybe i've misundertood something?

Your forgetting im a Pseudo Blonde
I've no idea how to start off with ADC values or how to use them (at the moment) I've found the easiest way to learn something is by following examples that show you how to get started and then playing from there thats how I got the LCD working in the first place, and then the bargraph, then inputs and outputs... learning.. slowly!

[mister_e]

No i didn't forget

let's see first example in this thread

; Initialize your hardware and LCD first.

DEFINE ADC_BITS 8               ' Number of bits in ADCIN result
ADCON1.7 = 1                    ' Right Justify AD result

INCLUDE "LCDbar_INC.bas"        ' Include the BARgraph routines

Value  VAR  WORD                ' Must be a WORD even though AD is 8bit

LCDOUT $FE, 1  ' Clear Screen

Loop1:
    ADCIN  0, Value
    LCDOUT $FE,2,"Value = ",DEC Value,"   "
    ; syntax- BARgraph   Value, Row, Col, Width, Range, Style
    @         BARgraph  _Value,   2,   0,    16,   255,  lines
GOTO Loop1

You just need to monitor Value variable with some IF-THEN statements after ADCIN line

IF Value>200 then 
        LCDOUT $FE,2,"VALUE>200       "
        endif

[karenhornby]

Thanks
I think I'm starting to get parts of it I'll try tomorrow properly when my head isn't so tired
however i do have one question, how do you tell the pic what port the input is on?
ie if the pot was connected to portA.0 how would you tell the pic to measure and display the value of that port?
Hope I've said that clearly enough, sometimes I'm better about thinking about things than trying to explain what I mean

[mister_e]

ADCIN 0, Value

check the datasheet, PORTA.0 is AN0

[greatpic]

I will use it to cell voltage indicator project