tilt switch – Kevin Gulling http://www.kevingulling.com Game Development, VR, and more Sat, 17 Dec 2016 02:34:12 +0000 en-US hourly 1 https://wordpress.org/?v=5.9.13 81085834 12 Days of Arduino – Day 3 – Pitch Shift and LED FX https://kevingulling.com/2016/12/12-days-arduino-day-3-pitch-shift-led-fx/ https://kevingulling.com/2016/12/12-days-arduino-day-3-pitch-shift-led-fx/#comments Thu, 15 Dec 2016 21:34:46 +0000 https://kevingulling.com/?p=1273 Hi and welcome back to “12 Days of Arduino”, Day 3! On the third day of Arduino Kevin gave to thee: Arduino Piano/Keyboard Pitch Shifter Sort of like a whammy bar! Makes a fantastic 8 bit horror effect! If you read from day 1 – (Arduino Morse Code Keyer) you can see the simple progression […]

The post 12 Days of Arduino – Day 3 – Pitch Shift and LED FX appeared first on Kevin Gulling - Game Development, VR, and more.

]]> 12 days of arduino day 3

Hi and welcome back to “12 Days of Arduino”, Day 3! On the third day of Arduino Kevin gave to thee:

Arduino Piano/Keyboard Pitch Shifter



Sort of like a whammy bar! Makes a fantastic 8 bit horror effect!

If you read from day 1 – (Arduino Morse Code Keyer) you can see the simple progression that lead to this point.


Project requires
–Arduino Uno
–Active buzzer
–4x button touch switch
-RGB LED
-220 ohm resistor
-4x 10k ohm resistor
-220 ohm resistor
-Jumper wires
-Ball switch

The sketch:

Pitch Shift Sketch


int switchPin1 = 2;
int switchPin2 = 4;
int switchPin3 = 7;
int switchPin4 = 8;
int tiltSwitch = 9;
int ledPin = 13;
int ledPinG = 12;
int ledPinB = 10;
int speakerPin = 11;
int lowA = 880;
int lowBb = 932;
int lowB = 988;
int C = 1046;
int D = 1175;
int E = 1319;
int F = 1396;
int G = 1567;
int A = 1760;
int B = 1976;
int wa = 25;

void setup() {
// put your setup code here, to run once:
pinMode(switchPin1, INPUT);
pinMode(switchPin2, INPUT);
pinMode(switchPin3, INPUT);
pinMode(switchPin4, INPUT);
pinMode(tiltSwitch, INPUT);
pinMode(ledPin, OUTPUT);
pinMode(ledPinG, OUTPUT);
pinMode(ledPinB, OUTPUT);
}

void loop() {
// put your main code here, to run repeatedly:
if(digitalRead(switchPin1) == HIGH){
digitalWrite(ledPin, HIGH);
if(digitalRead(tiltSwitch) == HIGH){
tone(speakerPin, lowA-wa);
}
else{
tone(speakerPin, lowA);
}

}
else if(digitalRead(switchPin2) == HIGH){
digitalWrite(ledPin, HIGH);
digitalWrite(ledPinG, HIGH);
if(digitalRead(tiltSwitch) == HIGH){
tone(speakerPin, lowBb-wa);
}
else{
tone(speakerPin, lowBb);
}
}
else if(digitalRead(switchPin3) == HIGH){
digitalWrite(ledPinB, HIGH);
if(digitalRead(tiltSwitch) == HIGH){
tone(speakerPin, C-wa);
}
else{
tone(speakerPin, C);
}
}
else if(digitalRead(switchPin4) == HIGH){
digitalWrite(ledPinG, HIGH);
if(digitalRead(tiltSwitch) == HIGH){
tone(speakerPin, E-wa);
}
else{
tone(speakerPin, E);
}
}
else{
digitalWrite(ledPin, LOW);
digitalWrite(ledPinG, LOW);
digitalWrite(ledPinB, LOW);
noTone(speakerPin);
}

}

I made some minor alterations along with the new additions.

A tilt switch is a simple component. A ball switch is a more specific type of tilt switch, similar to amercury switch only using a metal ball that rolls up and down the cylinder and connects to two contacts to open and close the circuit. Let’s see if I can ascii art an example πŸ˜‰

╬ ╬
β•‘0β•‘
β•š-╝
When upright, ball sits on bottom, contacts are open
β•”-β•—
β•‘ β•‘
╬0╬
When tilted the metallic ball hits both of the contacts, closing the circuit

If that didn’t do it for you, you can find a datasheet here.

Please check out the sponsor of this series:


Day 4 β†’

The post 12 Days of Arduino – Day 3 – Pitch Shift and LED FX appeared first on Kevin Gulling - Game Development, VR, and more.

]]> https://kevingulling.com/2016/12/12-days-arduino-day-3-pitch-shift-led-fx/feed/ 1 1273