Hi, my name is Edoardo and thisis my first post in this forum. I bought 2 arduino + 2 ethernet shield , but i'm not so able to program it. My idea is start a function when pin2 rise and another one when it fall. I wrote the code but this interrupt doesn't seem to work properly. I put a led on pin 12 but when i close the switch on pin 2 nothing happens.
this is the part of code where i call the interrupts
attachInterrupt(0, startinv, RISING);
attachInterrupt(0, offinv, FALLING);
and this one the entire code. It is not complete but the part i tested should work in theory. It compiles normally
Thank you in advance for every reply!
#include <SD.h>
int temp1 = A0; // temp1
int temp2 = A1; // temp2
int temp3 = A2; // temp3
int curr1 = A3; // current1
int curr2 = A4; // current2
int ledPin = 13; // select the pin for the LED
int tmax = 0; //max temperature between the three converted in 8 bit lenght
int valcurr1 = 0; //reading of charging current
int valcurr2 = 0; //reading of draining current
int invstat1; //actual state of inverter
int fault1=0; //fault indicator: 0 by default
int buttonState; // the current reading from the input pin
int lastButtonState = LOW;
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 50; // the debounce time; increase if the output flickers
const int chipSelect = 4;
const int partemp1 = 0; //minimum temperature for fan start in 8 bit lenght
const int partemp2 = 0; //direct law constant for pwm driving
const int buttonPin = 2; // the number of the pushbutton pin
void maxtemp (); //find out the highest temperature
void startinv (); //activation macro for inverter
void offinv ();
void statisticWrite (); //statistics trought serial
void pwmset (); //pwm driving for fan
void setup()
{
pinMode(buttonPin, INPUT);
invstat1 = digitalRead(7);
pinMode(ledPin, OUTPUT);
Serial.begin(9600);
Serial.print("Initializing SD card...");
pinMode(10, OUTPUT);
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
return;
}
Serial.println("card initialized.");
attachInterrupt(0, startinv, RISING);
attachInterrupt(0, offinv, FALLING);
attachInterrupt(1, statisticWrite, HIGH);
pinMode(12, OUTPUT);
pinMode(8, OUTPUT);
pinMode(7, INPUT );
}
void loop()
{
int a,lastime=0;
if (invstat1 == 1)
{
maxtemp();
if ( tmax < partemp1 )
{
pwmset();
}
interrupts();
a = millis();
if ( a >= (lastime+60000))
{
}
}
}
void maxtemp()
{
int a,b,c,i=0;
tmax = 0;
a = analogRead(temp1);
b = analogRead(temp2);
c = analogRead(temp3);
if (a > tmax)
{
tmax = a;
}
if (b > tmax)
{
tmax = b;
}
if (c > tmax)
{
tmax = c;
}
}
void startinv ()
{
int a=0,i=0;
// read the state of the switch into a local variable:
int reading = digitalRead(buttonPin);
// check to see if you just pressed the button
// (i.e. the input went from LOW to HIGH), and you've waited
// long enough since the last press to ignore any noise:
// If the switch changed, due to noise or pressing:
if (reading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
buttonState = reading;
}
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
if ( reading == 1)
{
while ( (a != 1)&&(i<4))
{
digitalWrite(12,HIGH);
delay(100);
digitalWrite(8,HIGH);
delay (5000);
a = digitalRead(7);
i++;
}
if ( a == 1 )
{
invstat1 = 1;
}
if ( (a !=1)||(i>=4))
{
fault1 = 1;
}
}
else
{
return;
}
}
void offinv ()
{
int a=0,i=0;
// read the state of the switch into a local variable:
int reading = digitalRead(buttonPin);
// check to see if you just pressed the button
// (i.e. the input went from LOW to HIGH), and you've waited
// long enough since the last press to ignore any noise:
// If the switch changed, due to noise or pressing:
if (reading != lastButtonState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
buttonState = reading;
}
// save the reading. Next time through the loop,
// it'll be the lastButtonState:
lastButtonState = reading;
if ( reading == 0)
{
while ( (a != 1)&&(i<4))
{
digitalWrite(12,LOW);
delay(500);
digitalWrite(8,LOW);
delay (1000);
a = digitalRead(7);
i++;
}
if ( a == 0 )
{
invstat1 = 0;
}
if ( (a !=0)||(i>=4))
{
fault1 = 2;
}
}
}
void statisticWrite ()
{
}
void pwmset ()
{
}
