PIC to control NEXA remoteswitch

[Fredrick]

I tryed to do the sound card version today byt no one of my 2 computers have a "Line in" or "Audio in" input, only a input with a microphone symbol on and that does´t work.

I have now posted the code in the code exampel area now.

[Fredrick]

Is it posible to capture the RF signal with the PICkit2 tool "PICkit 2 Programmer Logic Tool Analyzer"?

If so i will buy the PICkit2 programmer (i need a new programmer with USB support.)

http://www.microchip.com/stellent/id...cName=en023805

[ardhuru]

I tryed to do the sound card version today byt no one of my 2 computers have a "Line in" or "Audio in" input, only a input with a microphone symbol on and that does´t work.

You still might be able to use the mic input, if you attenuate the signal 1:1000 (a 100K and a 100ohm resistor divider, perhaps?). The waveform might not look picture perfect, but will surely be good enough for your purpose.

Alternately, if you have a serial port, you might want to look at Dante's infrax utility at http://www.geocities.com/tdanro/irman/irman.html

This would require you to build a small capture circuit, and be informed this does not work reliably with USB-to-serial interfaces. On a native serial port (or a PCI based additional one) it works quite brilliantly.

Regards,

Anand

[Fredrick]

Ok, i will try.

But i still need a new programmer so i hope that i can use the "Logic Tool" in Pickit2, or does´t that work?

[dhouston]

The mic input is tricky. Usually, it has +5V on one conductor to power electret microphones. Some are stereo.

• http://www.hobby-hour.com/electronic...microphone.php

A logic analyzer might work but I've never tried one. The signals typically are between 1000Hz & 2000Hz.