Search found 23 matches

//tested code with dev board.
#include <12F683.h>
#device adc=8

#FUSES NOWDT //No Watch Dog Timer
#FUSES INTRC //Internal RC Osc
#FUSES NOCPD ...

Is there an existing example of a menu system code then?

Any comments on my code architecture?

I need to know if my method of using an LCD for user interface is good. Is there a better way to program this? So far the code works and I could change the duty cycle but I also want to be able to ...

I'm designing a circuit with three functions and I'm using a 16x2 LCD with some switches so that I can select one of the three function. The LCD would display the selected function and it's setting. ...

...The keyless entry receiver module processes the rolling code algorithm and what comes out of it are just commands. That's why the serial data is the same everytime I press keyfob....
OK, you must ...

As far as I know, many older rolling code algorithms have been decoded, they are known at least by car burglars. An about 40 bit code actually can't provide strong cryptography.
Just because the bloc ...

The rolling code function is performed in the keyless entry receiver module. If I press a button on my key fob and everything is valid, I would get the serial data posted above. If not, then nothing ...

To be more clear, I have attached the scope capture of the actual frames that I would to detect.

here is one
http://www.tennis4real.com/Image1.gif

here is the other
http://www.tennis4real.com/ ...

The only information that I have is the bit rate which I see on the scope. The serial data idles at 12V but I will have a conversion circuit to bring it down to 5V.

Other than that I know nothing ...

I have a device that outputs serial data and I need to use a pic to capture the serial data. The serial data length is 44 bit/frame. I need to capture the frame so that I can use it later to detect ...

Without the LED, the oscillation is from 0V to 5V. Why? The pin output driver has some output impedance. Think of this as the internal resistance of a battery. When you draw a large current from the p ...

Referring to the original problem, that is unrelated to the other points mentioned by PCM prorammer:

You should try input_state(PIN_C1) instead of input(PIN_C1) and also may want to consult the ma ...

just an update. PIN C1 work like I expected if I change my code to this
#include <16F676.H>
#DEVICE ADC=8
#fuses INTRC_IO, NOWDT, NOPROTECT, NOBROWNOUT
#use delay(clock = 4000000)
setup_os ...

I'm running this code
#include <16F676.H>
#DEVICE ADC=8
#fuses INTRC_IO, NOWDT, NOPROTECT, NOBROWNOUT
#use delay(clock = 4000000)
setup_oscillator(OSC_4MHZ);
//#use rs232& ...