im trying to write some code which allows a 2 buttons to turn on 2relays
this is the code ive written my self, but its not working 100% hopefully someone can point out where im going wrong, im new to c++ but id like to think im on the right path
int relay1 = 2; // relay power point 1
int relay2 = 3; // relay power point 2
int start = 4; // start button
int limit1 = 5; // limit switch
int limit2 = 6; // limit switch 2
int buttonPushCounter = 0; // counter for the number of button presses
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button
void setup() {
// put your setup code here, to run once:
Serial.begin(9600); // initialize serial communication
pinMode(relay1, OUTPUT); // set relay1 as output
pinMode(relay2, OUTPUT); // set relay as output
pinMode(start, INPUT); // set start button as input
pinMode(limit1, INPUT_PULLUP); // set limit1 switch as pullup
pinMode(limit2, INPUT_PULLUP); // set limit2 switch as pullup
}
void loop() {
// put your main code here, to run repeatedly:
buttonState = digitalRead(relay1); // read which input the button is stored on
if (buttonState != lastButtonState) { // compare the buttonState to its previous state
if (buttonState == HIGH) { // if the state has changed, increment the counter & if the current state is HIGH then the button went from off to on:
buttonPushCounter++;
Serial.println("on");
Serial.print("number of button pushes: ");
Serial.println(buttonPushCounter);
}
else {
Serial.println("off"); // if the current state is LOW then the button went from on to off:
}
}
lastButtonState = buttonState; // save the current state as the last state, for next time through the loop
// turns on the LED every two button pushes by
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 2 == 0) {
digitalWrite(relay1, LOW); // turn led off
} else {
digitalWrite(relay1, HIGH);
}
}
what i want to know is how i can use 2 buttons to turn on & off a relay each,
button 1 / relay 1
button 2 / relay 2
the way i thought i could do it is as follows
button1
buttonState = digitalRead(switch1); // read which input the button is stored on
if (buttonState != lastButtonState) { // compare the buttonState to its previous state
if (buttonState == HIGH) { // if the state has changed, increment the counter & if the current state is HIGH then the button went from off to on:
buttonPushCounter++;
Serial.println("on");
Serial.print("number of button pushes: ");
Serial.println(buttonPushCounter);
}
else {
Serial.println("off"); // if the current state is LOW then the button went from on to off:
}
}
lastButtonState = buttonState; // save the current state as the last state, for next time through the loop
// turns on the LED every four button pushes by
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 2 == 0) {
digitalWrite(ledRed1, LOW); // turn led off
} else {
digitalWrite(ledRed1, HIGH); // turn led on
}
button2
buttonState2 = digitalRead(switch2); // read which input the button is stored on
if (buttonState2 != lastButtonState2) { // compare the buttonState to its previous state
if (buttonState2 == HIGH) { // if the state has changed, increment the counter & if the current state is HIGH then the button went from off to on:
buttonPushCounter++;
Serial.println("on");
Serial.print("number of button pushes: ");
Serial.println(buttonPushCounter);
}
else {
Serial.println("off"); // if the current state is LOW then the button went from on to off:
}
}
lastButtonState2 = buttonState2; // save the current state as the last state, for next time through the loop
// turns on the LED every four button pushes by
// checking the modulo of the button push counter.
// the modulo function gives you the remainder of
// the division of two numbers:
if (buttonPushCounter % 2 == 0) {
digitalWrite(ledRed1, LOW); // turn led off
} else {
digitalWrite(ledRed1, HIGH); // turn led on
}
hopefully this makes more sence