Search found 15 matches

Hi

Below is my exact code. All im doing is switching on and off relays at a specific time (secs==0 && mins==0 && hrs==1). After the 2nd time hrs == 1(after 24hrs), the program execu ...

Hi

I want the counter to count to say 2hrs than to run the code below. In code, it works but then the counter stops counting for the duration it takes to complete the while loop.

{
s ...

Hi All

I have a problem with me code. Everything works fine, my clock works 100%. The problem is, when say secs==10, it starts executing the code .... but the timer seems to stop counting than afte ...

Hi

I finally got my timer to work. The problem is that the event time happened, the program just loops. How can I make it exit till the next time.

#include <18F452.h>
#fuses HS,NOWDT,NO ...

Sorry to be a pain - Im still lost

Ok lets start over - using my code, How do I set off the timer to run some code after 2hrs using a 4Mhz and a 20Mhz crystal? What must I change in my code so that ...

Hi

1. (4000000/(4*1*65536)) - how do we get the figures 4*1? - how will my calculation change if I use a 20MHz Crystal?
2. Will this code work? I want a delay for 2hrs?

#include <18F452. ...

Hi

Ok now say I want this timer to do something say after 2hrs - how do I do this?

Thanks for all the info guys

Hi

I still have a problem using timers

Could someone please have a look at my code. Im using a 18F452 at a frequncy of 4mhz. After 20secound an led should flash but it doesn't. The program do ...

Clock rate is 20Mhz

Hi

Sorry, Im using a 18F452. I want to implement a timer - something must happen after 24hrs - can you guide me.

Thanks

Hi

I need some help using timers. Say I want some code to run after 10 minutes - will this work?

int secs;
int mins;
int hrs;

#int_RTCC
RTCC_isr() {

set_timer1(0*8000);

}

...

Hi

I need some help with interrupts. I want a delay. I want to use an interrupt on pin change to break this delay - RB0.

Please can any one help me as i don't know how to use it. Thanks

# ...

Hi

I want to connect a PIC to a 3.7V battery which is charged by a car battery (12v.) How do I go about detecting if the car battery is 0v and maybe flash an LED. Can some one please send me the c ...

Hi

Im am trying to send AT Commands via RS232 to a cell phone. The code below does not seem to work. Can anyone please help me.

Thanks

#include <18F452.h>
#device ICD=TRUE
#device ...

Hi

Im new at this PIC stuff. I want to send an sms from a PIC 18f452 to a nokia cell phone. Please can you give me the coding and the data cable info.

Thanks