Search found 41 matches

#include <16F628.h>
#use delay(clock=4000000)
#fuses NOWDT,INTRC_IO, NOPUT, NOPROTECT, NOBROWNOUT, NOMCLR, NOLVP, NOCPD

int donus1=0;

#INT_EXT
ext_isr()
{
++donus1;
output_high ...

i have connected lm339 comparator this time and saw the output voltage swinging between 0-5 with no load. when the 16f628's rb0 is connected the same problem appears. and rb0 is adjusted to be input. ...

the output of an LM358 comparator normally swings between 0-5 volts but when i connect the opamp to the rb0 external interrupt pin, the voltage seems to be swinging between 0-1.2 volts so the H to L e ...

i dont think interrupt is necessary. i have a 8channel servo controller downloaded from web. i would like to benefit from it in my project because i dont know visual basic. i know how it works (one by ...

i want to get 0-360 degree information from pc via serial port. but i dont know how to get the bytes into pic. this will not be an interrupt but polling. should i send ascii for example 268 degree as ...

i ve got a 24 V dc motor in my h-bridge. the gate input voltage is 30V driven on a 147ohm collector resistor(5watt) and BD139 power transistor (to be able to increase the current to fill the gate ca ...

i got to drive a huge current consuming (25A) dc motor with pic. and i got a few IRF250s. how can the motor drive circuit can be constucted because i tried some methods with protective diodes but stil ...

#include <16F877.h>
#fuses XT,NOWDT,NOPROTECT,NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, errors,BRGH1OK)

void main()
...

in the main program where the getch() function is called, the program gets into trouble. i ve just used the example code ex_stwt.c and the simplest example ex_sqw but i couldnt make them work. and i ...

all the connections are verified but still no action though i ve changed the max232 with a new one. how should understand the transmit action of pic with using multi meter because i have no scope.. i ...

i am sending data on rs232, printf("hello") and made all necessary things but i cannot see it on pc. iam using tty terminal program.
for the serial port of pc (6 and 4 short, 7-8 short ). dtr- ds ...

i am building a measurement device making the calculations of rotates/sec

when "sayac" is 2, the rtcc is on the second interrupt and 65,5*2= 131ms has passed.

there are black short lines on my ...

but this time nothing seems wrong but the speed is not what it is expected to be. it must be near 160 but now it shows up to ten. what is the problem

oh i ve got you some.. we are putting a long delay, longer than the isr time. so the count stays cleared.. ??

i couldnt get what you meant sseidman . your language is tough ..