Arduino.ru

#include <Arduino.h>
#include <Wire.h> 
#include <TM1637Display.h>



// Module connection pins (Digital Pins)
#define pinClk 5
#define pinDIO 4

TM1637Display display(pinClk,pinDIO);



int flowPin = 2;    //This is the input pin on the Arduino
double flowRate;    //This is the value we intend to calculate. 
volatile int count; //This integer needs to be set as volatile to ensure it updates correctly during the interrupt process.  
void Flow()
{
count++; //Every time this function is called, increment “count” by 1
}




void setup() {

// put your setup code here, to run once:
pinMode(flowPin, INPUT); //Sets the pin as an input
attachInterrupt(0, Flow, RISING); //Configures interrupt 0 (pin 2 on the Arduino Uno) to run the function “Flow”
Serial.begin(9600); //Start Serial
}

void loop() {
 


 
  display.setBrightness(0x0f);
// put your main code here, to run repeatedly:
count = 0; // Reset the counter so we start counting from 0 again
interrupts(); //Enables interrupts on the Arduino
delay (1000); //Wait 1 second
noInterrupts(); //Disable the interrupts on the Arduino

//Start the math
flowRate = (count * 3.60); //Take counted pulses in the last second and multiply by 2.25mL
flowRate = flowRate * 60; //Convert seconds to minutes, giving you mL / Minute
flowRate = flowRate / 100; //Convert mL to Liters, giving you Liters / Minute

Serial.println(flowRate); //Print the variable flowRate to Serial
 display.showNumberDecEx(flowRate); //Display the Variable value;


}