button help

[Kalind]

How do i write code to create a means of storing a setpoint that can be incremented or decremented using buttons?

[mackrackit]

First setup some variables

cnt     var byte 
TSET   var byte
TS      var byte
TLOG   var byte

Then the button VARs

TUP        var PORTD.0
TDOWN   var PORTC.3

This reads the eeprom at start up

read  TLOG, TSET 
TS = TSET

Then the code

START:
if TUP = 1 then gosub T_UP
if TDOWN = 1 then gosub T_DOWN
GOTO START

T_UP:
    for cnt = 1 to 1
    TS = TS + 1
    write TLOG, TS
    read  TLOG, TSET
    pause 100
    next
    return
    
T_DOWN:
    for cnt = 1 to 1
    TS = TS - 1
    write TLOG, TS
    read  TLOG, TSET
    pause 100
    next
    return

[Kalind]

ok that seems kewl. bt what if i had a high setpoint and a low setpoint and i wanted to use another two buttons, one to access the high setpoint then once the user has entered a value, the user could press the same button to exit and return to the main screen? the same goes for the other button.. im really pulling my hair off with trying to figure this out

[Archangel]

ok that seems kewl. bt what if i had a high setpoint and a low setpoint and i wanted to use another two buttons, one to access the high setpoint then once the user has entered a value, the user could press the same button to exit and return to the main screen? the same goes for the other button.. im really pulling my hair off with trying to figure this out

<h2> SO WHY SHOULD YOU BE THE ONLY ONE, WITH HAIR ?</h2>
Before you pluck out those last strands . . . Search for Clock examples by Melanie, she details how to use 1 button to do several things . . .

[mackrackit]

Hey Joe,
Have you tried miracle grow?

Kalind,
This might be the thread Joe is referring to.
http://www.picbasic.co.uk/forum/showthread.php?t=3600

If you use it. Read the value of Time and goto where ever from there.

IF Time = 3 THEN ???
IF Time = 9 THEN ?!?!

When that bit of code is ran, set Time back to 0 for the next run.

Oh, and if you have more questions, add a post to the thread, that way people that are working with you get an update in their e-mail. No e-mails for editing. I did not see you added more to the post until Joe replied.

[Archangel]

Hey Joe,
Have you tried miracle grow?

Kalind,
This might be the thread Joe is referring to.
http://www.picbasic.co.uk/forum/showthread.php?t=3600

NOPE ! I was referring to Melanie's Olympic timer. I had hoped Kalind would get busy and search for it. Ambition feeds the helpers. Anyway here is the link to her PDF file . . .http://www.picbasic.co.uk/forum/atta...4&d=1091819883
Look at how She used buttons to do different functions.