Prototyping/2019-10-16
Revision as of 14:31, 16 October 2019 by Michael Murtaugh (talk | contribs) (→Simple counting loop (for loop))
Starting with a very simple program...
void setup() {
tone(11, 220, 60);
delay(100);
tone(11, 440, 60);
delay(100);
tone(11, 880, 60);
delay(1000);
}
void loop() {
}
How do frequencies relate to tones... See Piano key frequencies
Incrementing 3 ways
All 3 are ways to add 1 to the variable x.
x = x + 1
x++;
x += 1;
Simple counting loop (while loop)
Counting to 10 with a while loop...
Three main parts,
- Initializing the variable
- The "control" in the while (....)
- Incrementing
void setup() {
int counter = 0;
while (counter < 10) {
tone(11, 440, 50);
delay(1000);
tone(11, 220, 50);
delay(1000);
counter = counter + 1;
}
}
void loop() {
// put your main code here, to run repeatedly:
}
full text with Serial tracing
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.println("hello");
int counter = 0;
Serial.print("YOUR Kounter is now ");
Serial.println(counter);
while (counter < 10) {
tone(11, 440, 50);
delay(1000);
tone(11, 220, 50);
delay(1000);
counter = counter + 1;
Serial.println(counter);
}
}
void loop() {
// put your main code here, to run repeatedly:
}
Simple counting loop (for loop)
Counting to 10 with a for loop...
Three main parts,
- Initializing the variable
- The "control" in the while (....)
- Incrementing
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.println("hello");
Serial.print("YOUR Kounter is now ");
for (int i = 0; i < 10; i++) {
tone(11, 330, 10);
tone(11, 440, 50);
delay(1000);
tone(11, 220, 50);
delay(1000);
Serial.println(i);
}
}
void loop() {
// put your main code here, to run repeatedly:
}