Sending Commands from Visual Basic about IR to Pic

[mister_e]

I would suggest you try to send data to your PC to a terminal software first (Hyperterm, MicroCode Serial communicator or whatever else).

Then from your PC to your PIC.

I you have good results, then move on VB. I had some bad experiments in the past on some computer on low baudrate.

High likely, you're using the internal OSC of your PIC? Don't forget at least the OSCCAL_1K define. Not a bad idea to use DEBUG/DEBUGIN as well. It perform better on some case.

Use current limiting resistor & the InvertedMode on the PIC side, and it should work on small distance between your PIC and the PC.

On VB side, I would suggest you to use ReadLine. To use it, you'll need to modify your PIC code to send a LF character (10) at the end.

[Luckyborg]

I think the problem is with "1" vs 1 (SOH)

[HTML]My PBP Code for sender
Code:

main:
SEROUT led5,12,["9999",1]
PAUSE 100
SEROUT led5,12,["9999",5]
PAUSE 100
GOTO main

With this PBP Code it works regarding Pic to Pic communication.
But if I send "99991" or "99995" by my Visual Basic programm it does not work. [/HTML]

Your pic is sending out hex 1 and your vb is sending out hex 31
To get vb to send out a 1 try
txtDatatoSend.txt = "9999" & chr(1)
this will add a 1 to it, though if you ever want to send 0 it will actually be sending nul characters

On the other hand you could send a "1" and on the pic side once you receive your dat variable, just subtract "0" from it to give you the value you want or change your if statements to check for "1"

[samrulezzz]

Hi Sougata

needed a bit of help on inverters using pic16f72
read ur posts on the following thread
http://www.letbasic.com/forum/showth...?t=1846&page=4

this thread is a year or more old so i believe u have advanced ur inverter quite a lot

can u help on pic 16f72 code as i'm very bad on coding weras i ve pretty gud hardware knowledge.......

sam
[email protected]