I chose to do the Keyboard Interface project for this week’s makerspace. I had two major problems completing it — stuttering sound on the first button and using the wrong resistors — and I explain in the video how I fixed those.
Here’s my final code.
// int buttons[6];
// set up an array with 6 integers
// int buttons[0] = 2;
// give the first element of the array the value of 2
int notes[] = {262,294,330,349};
void setup() {
Serial.begin(9600);
}
void loop() {
int keyVal = analogRead(A0);
Serial.println(keyVal);
if(keyVal >= 1020 && keyVal <= 1023) {
tone(8, notes[0]);
}
else if(keyVal >= 990 && keyVal <= 1010) {
tone(8, notes[1]);
}
else if(keyVal >= 505 && keyVal <= 515) {
tone(8, notes[2]);
}
else if (keyVal >= 5 && keyVal <= 10) {
tone(8, notes[3]);
}
else {
noTone(8);
}
}