HelloDrum Arduino Library

This is a library for making E-Drum with Arduino.
Ver.0.7.1(8/3/2019) Work in progress.

Description

This is a library for making E-Drum with Arduino.
By using it with Arduino MIDI Library, you can make E-drum.
Blog :https://open-e-drums.tumblr.com/
YouTube :https://www.youtube.com/channel/UCNCDcIO26xL_NhI04QY-v4A

This software is an alpha version, and is unsupported. Use at your own risk.

Features

• Single piezo pad, Dual Piezo pad, 2 zone cymbal, 3 zone cymbal
• Compatible with YAMAHA's 3 zone cymbal(PCY135/PCY155)
• Compatible with SoftPot, FSR and Optical(TCRT5000) type hi-hat controllers
• Sensing with MUX(4051 and 4067)
• Setting mode with LCD or OLED
• Sensitivity, Threshold, Scan Time, Mask Time, Note Number can be set with each pad
• Works with ESP32 and Teensy and AVR boards such as UNO and MEGA.

How to Use

• Install

Use Arduino's Library Manager to install the library. Search for “hellodrum ”.
If you use MIDI, also install the MIDI Library.

• Coding:

   #include <hellodrum.h>
   #include <MIDI.h>
   MIDI_CREATE_DEFAULT_INSTANCE();
  
   //Please name your piezo.
   //The piezo named snare is connected to the A0 pin
   HelloDrum snare(0);
  
   //Setting
   int SNARE[5] = {
     80, //sensitivity 
     10, //threshold
     20, //scantime
     20, //masktime
     38  //note
   }; 
  
   void setup()
   {
       MIDI.begin(10);
   }
  
   void loop()
   {
       //Sensing
       snare.singlePiezo(SNARE[0], SNARE[1], SNARE[2], SNARE[3]);
  
       //Sending MIDI signals
       if (snare.hit == true) {
           MIDI.sendNoteOn(SNARE[4], snare.velocity, 10);  //(note, velocity, channel)
           MIDI.sendNoteOff(SNARE[4], 0, 10);
       }
   }

• Coding (MUX 4051):

   #include <hellodrum.h>
   #include <MIDI.h>
   MIDI_CREATE_DEFAULT_INSTANCE();
  
   //Define MUX Pins
   HelloDrumMUX_4051 mux(2,3,4,0);//D2, D3, D4, A0
   
   //Please name your piezo.
   //The piezo named snare is connected to MUX 0 pin
   HelloDrum snare(0);
  
   //Setting
   int SNARE[5] = {
     80,  //sensitivity
     10,  //threshold
     20,  //scantime
     20,  //masktime
     38   //note
   }; 
  
   void setup()
   {
       MIDI.begin(10);
   }
  
   void loop()
   {
       //scanning all pin of mux
       mux.scan();
  
       //Sensing
       snare.singlePiezoMUX(SNARE[0], SNARE[1], SNARE[2], SNARE[3]);
  
       //Sending MIDI signals
       if (snare.hit == true) {
           MIDI.sendNoteOn(SNARE[4], snare.velocity, 10);  //(note, velocity, channel)
           MIDI.sendNoteOff(SNARE[4], 0, 10);
       }
   }

Check instruction.md

Circuit

• Single Piezo

• Dual Piezo

• TCRT5000

• FSR

• YAMAHA PCY135/PCY155

• Arduino UNO with MUX

• ESP32 with MUX

Pads

The STL data of pads from 6 inches to 12 inches, hi-hat controllers(https://www.thingiverse.com/RyoKosaka/designs)

Release History

• 0.7.1
  • Sensing with 16ch MUX(4067) is available
  • Update sample code
  • Organize folders and files
  • Add library.properties
  • Teensy3.2 has been tested
• 0.7.0
  • Improved sensing
  • Dual Piezo sensing available (Test)
  • ESP32 EEPROM available
  • Setting mode with I2C LCD or I2C OLED available
  • Add sample code
• 0.6.0
  • Sensing with MUX(4051) is available
  • Add BLE MIDI sample code with ESP32
  • Hihat Contorller with FSR is available
• 0.5.0
  • Setting mode available
  • Display function by LCD is available
  • Saving function of setting items by EEPROM is available
  • Improved sensing of TCRT 5000 hi-hat controller
• 0.1.0
  • Work in progress

Contributing

1. Fork it
2. Create your feature branch
3. Commit your changes
4. Push to the branch
5. Create new Pull Request

Author

@tnctrekit
Works

Licence

MIT