Arduino Intermediate Kit Tutorial 10: Electronic Drum Kit

In this session we’re going to create a simple electronic drum kit with interactive lights. We will use red LEDs in this experiment, but you can use RGB ones or even an LED strip for better effects. We will be using a vibration sensor this time.

COMPONENTS

1×  Digital Piranha LED-R
1× Piezo Disk Vibration Sensor V2
1× DFRduion UNO R3 (similar as Arduino UNO)
1× IO Expansion Shield for Arduino V7.1

HARDWARE CONNECTIONS
Connect the Piezo Disk Vibration Sensor V2 to analog pin 0.
Connect the Digital Piranha LED-R to digital pin 10.

See the diagram below for reference:

Be sure that your power, ground and signal connections are correct or you risk damaging your components.

When you have connected the components and checked your connections, plug the Arduino in to your PC with the USB cable so you can upload a program.

CODE INPUT
Sample Code 7-1:

// Electronic Drum Kit
int sensorPin = 0;                // Piezo Disk Vibration Sensor V2 is to be attached to analog pin 0
int ledPin = 10;                  // Digital Piranha LED-R is to be attached to digital pin 10.

void setup() {
       pinMode(ledPin, OUTPUT);
}

void loop() {
  int sensorValue = analogRead(sensorPin);    //collect value at analog pin 0
  // A value between 0 and 1023 to mapped to a value between 0 and 255
int outputValue = map(sensorValue, 0, 1023, 0, 255);   
analogWrite(ledPin, outputValue*10);   //write corresponding value for LED       
  delay(10);                     
}

The code is similar to that in Experiment 6: LED Dimmer. You can refer to that for code analysis. 

If you have any questions, please feel free to comment.
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