Beginner help!

[Demon]

When you post code, use the Advanced options, you can use the Code icon (looks like #) to post so it looks like this:

TRISB = %00001000

SIG1 = GPIO.3
OUTPUT1 = GPIO.1
OUTPUT2 = GPIO.2

LOOP:

OUTPUT1 = SIG1
OUTPUT2= 0
PAUSE 200

OUTPUT1 = 0
OUTPUT2 = SIG1
PAUSE 200

GOTO LOOP

You can name variables any name you want, as long as you don't use reserved names (check the manual for naming conventions and reserved names).

Spacing is irrelevant as long as you don't break up words.

Comments are optional, but they will help you remember what you are doing, and others go through your code.

If you post in WYSIWYG format, your code gets messed up, ie: you lose leading % on bits. Hover your mouse over the big A icon, you want to be in Source mode.

I don't understand the part about alternating a negative ground signal. As explained, your best bet would be to post a schematic of the components you are using and how you plan to wire them up.

Robert

[Recognize]

Trisio = %001000

ground var gpio.3
pin1 var gpio.1
pin2 var gpio.2

loop:

Pin1 = ground
pin2 = 0
pause 200

pin1 = 0
pin2 = ground
pause 200

goto loop

The switches trigger buttons on a remote control. Thanks for all the help by the way ive really learned alot.

[Recognize]

Would this code send -5v to the switches alternating or is there some other way to do it?

[AvionicsMaster1]

Ahhhh, in a word no the code won't work and the schematic doesn't depict a working circuit.

If I read it correctly, the schematic has gpio.2 hooked up to a switch that will pull the pin high when the switch closes. If by -5V you mean ground then that won't work. The second switch, hooked up to ground and +5V, will either burn out the switch or shut down your power supply, whichever is weaker.

Your code doesn't take into account switch position. You'll need to use an IF/THEN or CASE SELECT or something like that. You really need to read the PBP manual, page 6, as there is working code to flash an LED. Except for the part about PORTB should be GPIO.x where x is the port where the LED is connected. There is also info in the book on how to hook up LEDs and switches. It's for a bigger PIC but you can see how is should be done.

Why don't you focus on getting an LED to light then move on to switches? Read the manual and start with a simple program then you can add to it.

[Demon]

Im on cell phone so I can't type details.

Use IF statement to check if input pins are 1 or 0, then turn on output as desired.


Check manual, must have example.