Hello and big thanks for your reponse. THis is my arduino code:
#include <SoftwareSerial.h>
#include <SparkFunSerLCD.h>
SparkFunSerLCD led(7,2,16); // desired pin, rows, cols);
int ledPin = 13; // IR LED connected to digital pin 13
volatile byte rpmcount;
unsigned int rpm;
unsigned long timeold;
// declaratii pentru partea de masurare tensiune
float vout = 0.0;
float vin = 0.0;
float vout2 = 0.0;
float vin2 = 0.0;
float vout3 = 0.0;
float vin3 = 0.0;
float curent = 0.0;
float putere = 0.0;
int analogInput = 1;
int analogInputa = 2;
int analogInputb = 3;
float R1 = 48500.0; // !! rezistenta R1 !!
float R2 = 4600.0; // !! rezistenta R2 !!
int value = 0;
int valoare = 0;
int valoareb = 0;
void rpm_fun()
{
//Each rotation, this interrupt function is run twice, so take that into consideration for
//calculating RPM
//Update count
rpmcount++;
}
void setup()
{
pinMode(analogInput, INPUT); //aici preiau prima tensiune
Serial.begin(9600);
led.setup();
delay(1000);
led.at(1,1,"RPM: ");
led.at(2,1,"U1: ");
//Interrupt 0 is digital pin 2, so that is where the IR detector is connected
//Triggers on FALLING (change from HIGH to LOW)
attachInterrupt(0, rpm_fun, FALLING);
//Turn on IR LED
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, HIGH);
rpmcount = 0;
rpm = 0;
timeold = 0;
}
void loop()
{
turatie();
delay(1000);
tensiuni();
}
void turatie()
{
//Update RPM every second
//delay(1000);
//Don't process interrupts during calculations
detachInterrupt(2);
//Note that this would be 60*1000/(millis() - timeold)*rpmcount if the interrupt
//happened once per revolution instead of twice. Other multiples could be used
//for multi-bladed propellers or fans
rpm = 8.57*1000/(millis() - timeold)*rpmcount;
timeold = millis();
rpmcount = 0;
//Print out result to lcd and serial
Serial.print ("RPM:");
Serial.print(rpm);
Serial.print (" | ");
led.at(1,6," ");
led.at(1,6,rpm);
//Restart the interrupt processing
attachInterrupt(2, rpm_fun, FALLING);
}
void tensiuni(){
// read the value on analog input
value = analogRead(analogInput);
valoare = analogRead(analogInputa);
valoareb = analogRead(analogInputb);
//Serial.print("value=");
//Serial.println(value);
if (value >= 1023) {
Serial.println("TENSIUNE MAXIMA!!");
return;
}
else if (value <= 0) {
Serial.println("TENSIUNE MINIMA!!");
return;
}
// print result over the serial port
vout = (value * 5.0) / 1024.0;
vout2 = (valoare * 5.0) / 1024.0;
vout3 = (valoareb * 5.0) / 1024.0;
vin = vout / (R2/(R1+R2));
vin2 = vout2 / (R2/(R1+R2));
vin3 = vout3 / (R2/(R1+R2));
curent = (vin - vin2)/1.2;
putere = vin3*curent;
//Serial.print("vout=");
//Serial.println(vout);
Serial.print("Ugen=");
Serial.print(vin3);
Serial.print("V | ");
Serial.print("U1=");
Serial.print(vin);
Serial.print("V | ");
Serial.print("U2=");
Serial.print(vin2);
Serial.print("V | ");
Serial.print("I=");
Serial.print(curent);
Serial.print("A | ");
Serial.print("P=");
Serial.print(putere);
Serial.println("W ");
led.at(2,5," ");
led.at(2,5,"Aici tensiune");
}
This program, send data to serial port and to my serial LCD. I really need to send "curent", "putere", "tensiune" to labview for three charts.
Any sugestion for me?
