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Grove - Dual Button

Grove - Dual Button includes 2 buttons, enables you control two signal channel with one grove module. With 4 different color keycaps provided, you can freely adjust the color combination as needed.

The button is simply driven by the GPIO Digital Pins. When the button is pressed, the Pins can reach a LOW signal from the button; on the other hand, when it is in the loosen state, Pins will always gain a HIGH signal until it is pressed.

Features

  • Compact modular design and less wire connection with two buttons in one grove module
  • Different color keycaps provided, freely adjust the color combination as needed.

Specification

Item Value
Voltage range 3V–5V
Interface Grove
Dimensions 20mm * 40mm
Battery Exclude

Platform Supported

Arduino Raspberry Pi

Getting Started

Getting Started with Arduino

Materials Required

Seeeduino Nano Grove Shield for Arduino Nano Grove Passive Buzzer Grove LED Pack Grove Dual Button
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Hardware Connection

The Grove Dual Button connects with "D2" interface on the Grove shield, Grove Passive Buzzer connects with "D4" interface and Grove LED Pack connects with "D6" interface.

Softwawre

  • Step1 Copy the code below to the Arduino IDE and upload. If you do not know how to update the code, please check How to upload code.
     //set the corresponding notes with frequency
     #define NOTE_D0 0
     #define NOTE_D1 294
     #define NOTE_D2 330
     #define NOTE_D3 350
     #define NOTE_D4 393
     #define NOTE_D5 441
     #define NOTE_D6 495
     #define NOTE_D7 556
    
     #define NOTE_DL1 147
     #define NOTE_DL2 165
     #define NOTE_DL3 175
     #define NOTE_DL4 196
     #define NOTE_DL5 221
     #define NOTE_DL6 248
     #define NOTE_DL7 278
    
     #define NOTE_DH1 589
     #define NOTE_DH2 661
     #define NOTE_DH3 700
     #define NOTE_DH4 786
     #define NOTE_DH5 882
     #define NOTE_DH6 990
     #define NOTE_DH7 112
    
     #define WHOLE 1
     #define HALF 0.5
     #define QUARTER 0.25
     #define EIGHTH 0.25
     #define SIXTEENTH 0.625
    
     //the note part of the whole song
     int tune[] =
     {
       NOTE_DH1, NOTE_D6, NOTE_D5, NOTE_D6, NOTE_D0,
       NOTE_DH1, NOTE_D6, NOTE_D5, NOTE_DH1, NOTE_D6, NOTE_D0, NOTE_D6,
       NOTE_D6, NOTE_D6, NOTE_D5, NOTE_D6, NOTE_D0, NOTE_D6,
       NOTE_DH1, NOTE_D6, NOTE_D5, NOTE_DH1, NOTE_D6, NOTE_D0,
    
       NOTE_D1, NOTE_D1, NOTE_D3,
       NOTE_D1, NOTE_D1, NOTE_D3, NOTE_D0,
       NOTE_D6, NOTE_D6, NOTE_D6, NOTE_D5, NOTE_D6,
       NOTE_D5, NOTE_D1, NOTE_D3, NOTE_D0,
       NOTE_DH1, NOTE_D6, NOTE_D6, NOTE_D5, NOTE_D6,
       NOTE_D5, NOTE_D1, NOTE_D2, NOTE_D0,
       NOTE_D7, NOTE_D7, NOTE_D5, NOTE_D3,
       NOTE_D5,
       NOTE_DH1, NOTE_D0, NOTE_D6, NOTE_D6, NOTE_D5, NOTE_D5, NOTE_D6, NOTE_D6,
       NOTE_D0, NOTE_D5, NOTE_D1, NOTE_D3, NOTE_D0,
       NOTE_DH1, NOTE_D0, NOTE_D6, NOTE_D6, NOTE_D5, NOTE_D5, NOTE_D6, NOTE_D6,
       NOTE_D0, NOTE_D5, NOTE_D1, NOTE_D2, NOTE_D0,
       NOTE_D3, NOTE_D3, NOTE_D1, NOTE_DL6,
       NOTE_D1,
       NOTE_D3, NOTE_D5, NOTE_D6, NOTE_D6,
       NOTE_D3, NOTE_D5, NOTE_D6, NOTE_D6,
       NOTE_DH1, NOTE_D0, NOTE_D7, NOTE_D5,
       NOTE_D6,
     };
    
     //the duration time of each note
     float duration[] =
     {
       1, 1, 0.5, 0.5, 1,
       0.5, 0.5, 0.5, 0.5, 1, 0.5, 0.5,
       0.5, 1, 0.5, 1, 0.5, 0.5,
       0.5, 0.5, 0.5, 0.5, 1, 1,
    
       1, 1, 1 + 1,
       0.5, 1, 1 + 0.5, 1,
       1, 1, 0.5, 0.5, 1,
       0.5, 1, 1 + 0.5, 1,
       0.5, 0.5, 0.5, 0.5, 1 + 1,
       0.5, 1, 1 + 0.5, 1,
       1 + 1, 0.5, 0.5, 1,
       1 + 1 + 1 + 1,
       0.5, 0.5, 0.5 + 0.25, 0.25, 0.5 + 0.25, 0.25, 0.5 + 0.25, 0.25,
       0.5, 1, 0.5, 1, 1,
       0.5, 0.5, 0.5 + 0.25, 0.25, 0.5 + 0.25, 0.25, 0.5 + 0.25, 0.25,
       0.5, 1, 0.5, 1, 1,
       1 + 1, 0.5, 0.5, 1,
       1 + 1 + 1 + 1,
       0.5, 1, 0.5, 1 + 1,
       0.5, 1, 0.5, 1 + 1,
       1 + 1, 0.5, 0.5, 1,
       1 + 1 + 1 + 1
     };
    
     int length;//define the number of notes
     int tonePin = 4; //set the buzzer Pin
     int button1 = 2; //set the button1 pin
     int button2 = 3; //set the button2 pin
     int LED = 6;  //set the LED pin
     bool state1 = 1; //set button1 state
     bool state2 = 1; //set button2 state
     void setup()
     {
       pinMode(tonePin, OUTPUT); // set the buzzer as output mode
       pinMode(button1,INPUT);
       pinMode(button2,INPUT);
       pinMode(LED,OUTPUT);
       length = sizeof(tune) / sizeof(tune[0]); //count the number of note
     }
    
     void loop()
     {
      state1 = digitalRead(button1);
      state2 = digitalRead(button2);
      if (state1 == 0)
      {
        digitalWrite(LED,HIGH);
        }
      else
      {
        digitalWrite(LED,LOW);
        } 
      if (state2 == 0)
      {
           for (int x = 0; x < length; x++) //"sing" the note one by one
         {
         tone(tonePin, tune[x]); //output the "x" note
         delay(400 * duration[x]); //rythem of the music,it can be tuned fast and slow by change the number"400"
         noTone(tonePin);//stop the current note and go to the next note
        } 
      } 
      else
      {
        digitalWrite(tonePin,LOW);
        }
    
     }
    
  • Step2 Press each button to control the LED and Buzzer.

Getting Started with Raspberry Pi

Materials Required

Raspberry Pi 4B(4GB) Grove Base Hat for Raspberry Pi Grove Passive Buzzer Grove LED Pack Grove Dual Button
)
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Hardware Connection

Connect the passive with PWM pin "12", button "D5", LED "D16".

Code

  • Step 1 Install Grove.py on your Raspberry.

    curl -sL https://github.com/Seeed-Studio/grove.py/raw/master/install.sh | sudo bash -s -
    
    git clone https://github.com/Seeed-Studio/grove.py
    

  • Step 2 Create a python file for the code.

    cd grove.py
    nano button.py
    

  • Step 3 Copy the following code to the python file
    #!/usr/bin/env python
    import time
    from grove.factory import Factory
    from grove.grove_led import GroveLed
    
    led = GroveLed(16)
    button1 = Factory.getButton("GPIO-HIGH", 5)
    button2 = Factory.getButton("GPIO-HIGH", 6)
    buzzer = Factory.getGpioWrapper("Buzzer", 12)
    
    while True:
        if button1.is_pressed():
            led.on()
        else:
            led.off()
        if button2.is_pressed():
            buzzer.on() 
        else:
            buzzer.off()           
    
  • Step 4 Run the program
    sudo chmod +x button.py
    sudo ./button.py
    
    If everything goes well, you can control the led and buzzer by dual button.

Schematic Online Viewer

Resource

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