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#include <16F877.h>
#device adc=8
#FUSES NOWDT ,XT
#use delay(clock=4000000)
void sound (char freq,int16 time) // Sound Generate
{
unsigned char i;
while (time>0)
{
output_low (pin_b0);
for (i=1;i<=freq;i++)
time--;
output_high (pin_b0);
for (i=1;i<=freq;i++)
time--;
}
}
void main(){
set_tris_a(0xff);
set_tris_b(0x00);
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
output_b(0x00);
while(true){
if(!input(pin_a0)){
sound(50,1000);
sound(60,5000);
sound(10,6000);
sound(100,40000); }
else{
sound(0,0);
}
}
}
About The Author
Ibrar Ayyub
I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.
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