I have the fallowing code file and every time I try to compile it I get this error code. I have attached a copy of the code. Thank you in advance.
Arduino: 1.6.4 (Windows 7), Board: "Arduino Uno"
Foxy_commented.ino: In function 'void loop()':
Foxy_commented:224: error: 'screamButtonPushed' was not declared in this scope
'screamButtonPushed' was not declared in this scope
This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.
const short SCREAM_BUTTON = 8;
pinMode(SCREAM_BUTTON, INPUT); //pullup is provided by speaker circuit
Now you need to translate that input into your variable.
if (screamButtonPushed == 0){
Define screamButtonPushed as a variable, and then set the variable per the input. I will give you example code for a button press. You can do it!
/*
Button
Turns on and off a light emitting diode(LED) connected to digital
pin 13, when pressing a pushbutton attached to pin 2.
The circuit:
* LED attached from pin 13 to ground
* pushbutton attached to pin 2 from +5V
* 10K resistor attached to pin 2 from ground
* Note: on most Arduinos there is already an LED on the board
attached to pin 13.
created 2005
by DojoDave <http://www.0j0.org>
modified 30 Aug 2011
by Tom Igoe
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/Button
*/
// constants won't change. They're used here to
// set pin numbers:
const int buttonPin = 2; // the number of the pushbutton pin
const int ledPin = 13; // the number of the LED pin
// variables will change:
int buttonState = 0; // variable for reading the pushbutton status
void setup() {
// initialize the LED pin as an output:
pinMode(ledPin, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin, INPUT);
}
void loop(){
// read the state of the pushbutton value:
buttonState = digitalRead(buttonPin);
// check if the pushbutton is pressed.
// if it is, the buttonState is HIGH:
if (buttonState == HIGH) {
// turn LED on:
digitalWrite(ledPin, HIGH);
}
else {
// turn LED off:
digitalWrite(ledPin, LOW);
}
}