Search found 18 matches

Since the system was working fine before the PCB, I've kept everything the same. It has the same crytals, same caps, same everything. I've checked over all the wiring and it seems fine.
Measuring al ...

Hi all,
I've been using the PIC16F876A on a modified smoke/CO detector. The system worked fine when I connected everything to the PIC on a bread-board. I have now transferred the system to a PCB, ch ...

Thanks once again, I was able to successfully use it in my program.

Can the
goto label;
label:
only be used in the same function?

If so is there any way you could skip from one bit of code to another?
I wanted to jump back to a point in a while loop from ...

#INT_TIMER1
void timer1(void)
{
}

Worked perfectly, thanks.
One last thing what would be the best way to increase the amount of time in sleep mode?
Anything in the funct ...

I't won't compile with a NOP(); command.

PCW Compiler
IDE version 3.212
PCB version 3.213
PCM version 3.213

I should have put in the results obtained from the code above.
The PIC samples the data once then goes into sleep mode for the 16 seconds. During this time if the external interrupt is triggered the ...

Commenting out the
enable_interrupts(INT_TIMER1);
did not give the desired result.
This is what I want to do:
1) Sample the data and send the results
2) Put the PIC in sleep mode
3) ...

Thanks, I was able to get it working by putting a clear_interrupt(INT_TIMER1); command before the sleep command.
I wanted to add another feature to check the threshold voltage of the detector which c ...

Hello all, I just got a problem with the sleep function. I am using the 16F876A PIC. I am running a couple of sensors(smoke and CO) and all I want to do is get their outputs (voltages) and display the ...

Guess what the problem was??
I was running the PIC off a 5v power supply and was running the detector circuit off a 9v battery, so I had a ground from the battery and one from the supply. The voltage ...

I have already tried using an opamp in the voltage follower configuration. I am using the LMC6042, taking the output from the Allegro pin 14 through the buffer then through the voltage divider before ...

I used small values all under 1k.
910ohm and 390ohm.

Sounded like a good idea and i gave it a try but it also gave the same result. All I'm doing is going from pin 14 through a voltage divider then to the PIC, I can't figure it out.