LM393 Speed Sensor with disk

add TIMER library

Go to the sketch then click on the include library and then in the include library click on add zip library.

after added it >> will find it in libraries like next picture

LM393 Speed Sensor with Arduino, Circuit diagram:

arduino code

code

نسخ

اقتباس

عرض

تنزيل

	
								#include "TimerOne.h"
unsigned int counter=0;
 

void docount()  // counts from the speed sensor
{
  counter++;  // increase +1 the counter value
} 
 
void timerIsr()
{
  Timer1.detachInterrupt();  //stop the timer
  Serial.print("Motor Speed: "); 
  int rotation = (counter / 20);  // divide by number of holes in Disc
  Serial.print(rotation,DEC);  
  Serial.println(" Rotation per seconds"); 
  counter=0;  //  reset counter to zero
  Timer1.attachInterrupt( timerIsr );  //enable the timer
}
 
void setup() 
{
  Serial.begin(9600);
  Timer1.initialize(1000000); // set timer for 1sec
  attachInterrupt(0, docount, RISING);  // increase counter when speed sensor pin goes High
  Timer1.attachInterrupt( timerIsr ); // enable the timer
} 
 
void loop()
{

}

#include "TimerOne.h"
unsigned int counter=0;
 

void docount()  // counts from the speed sensor
{
  counter++;  // increase +1 the counter value
} 
 
void timerIsr()
{
  Timer1.detachInterrupt();  //stop the timer
  Serial.print("Motor Speed: "); 
  int rotation = (counter / 20);  // divide by number of holes in Disc
  Serial.print(rotation,DEC);  
  Serial.println(" Rotation per seconds"); 
  counter=0;  //  reset counter to zero
  Timer1.attachInterrupt( timerIsr );  //enable the timer
}
 
void setup() 
{
  Serial.begin(9600);
  Timer1.initialize(1000000); // set timer for 1sec
  attachInterrupt(0, docount, RISING);  // increase counter when speed sensor pin goes High
  Timer1.attachInterrupt( timerIsr ); // enable the timer
} 
 
void loop()
{

}