On Sun, May 22, 2005 at 11:16:11AM -0600, James wrote:
> Ok I hope I posted this right? 
> 
> My question is this. I just started programming pics. I got the blinking
> Led going and setting ports to output and input. But now I am wondering
> if it would be possible using an lcd and some input to make an alarm
> clock to make a light timer of sorts.

Of course.

> Turn Leds on at 8AM, off at 8PM for example.

I have a sunrise/sunset outdoor light controller that does this.
The code can be found here:

http://www.finitesite.com/d3jsys/clock.asm

I don't have a schematic unfortunately.

> I would like to be able to change the on and off times via
> the pic chip itself.

Mine sets the time using what I call a pot/switch interface. A 
potentiometer is used to send a variable voltage to the PIC's ADC.
A switch is then used to select the value. I used a cheap light dimmer
something like this:

http://www.rpelectronics.com/English/Content/Items/SDR500.asp

I ripped out everything but the integrated pot/switch.

My debounce delay isn't long enough, as it bounces sometimes.

> Utilizing leds or LCD.

Mine is LED display based. I used it because I had one handy. An LCD
is easily doable. Part number LCD1029 at bgmicro.com will easily handle
the job with a 24x2 display and cost only $4 each. Backlit too (inverter
sold separately).

> Something like that. If
> someone could help or point me to some code to go thru that would be
> great. 

Have at it. Google, the piclist, and the piclist archives are your friend.

BAJ
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