openEMSstim

/**
 *  This is a basic processing Sketch that controls the openEMSstim. Ready to be ran on Android. 
 *  This is part of openEMSstim by Pedro Lopes. Get all code, schematics, etc at: http://plopes.org/ems
 *  
 *  How to use
 *  0. check the name of your openEMSstim device and edit the field openEMSstim_device_1_name = "YOURNAMEHERE"; (line 27)
 *  1. Run one time and check if device is found and if it connects (for troubleshooting check the videos at http://plopes.org/ems)  
 *  2. It will print the UUID of the discovered service, probably will be: 454d532d-5374-6575-6572-756e672d4348
 *  3. You can change: public static UUID EMS_UUID_SERVICE = UUID.fromString("YOURUUID"); (line 28)
 
 *  Dependencies
 *  0. Requires your device/phone/dongle to have bluetooth low energy (BT4.0).
 *  1. ControlP5 by Andreas Schlegel, www.sojamo.de/libraries/controlp5
 *  2. blepdroid by Andreas Schlegel, www.sojamo.de/libraries/controlp5  
 *  3. this uses processing with android mode enabled (tested on processing 3.0) hence requires the Android SDK setup. 
 */

import blepdroid.*;
import blepdroid.BlepdroidDevice;
import com.lannbox.rfduinotest.*;
import android.os.*;
import android.content.*;
import java.util.UUID;
import java.util.Arrays;

//EMS setup, connection information, service UUID, signal intensities
public static String openEMSstim_device_1_name = "EMS40LJ"; //your device name, check using your phone or an app such as BLEscanner (scan for devices, check name)
public static UUID EMS_UUID_SERVICE = UUID.fromString("454d532d-5374-6575-6572-756e672d4348"); //values for EMS UUID, you need to find this out, the code does it for you but you will need to copy paste it here if you want.
public static String openEMSstim_device_2_name = "EMS42LJ";
int channel = 0;
int[] intensities = {100,100};
int[] signalLengths = {1000,1000};

//bluetooth devices
BlepdroidDevice device1;
BlepdroidDevice device2;
boolean allSetUp = false;

void setup() {
  size(800, 800); //can this be auto
  smooth();
  println("started processing sketch.");
  Blepdroid.initialize(this);
  delay(1000);
  Blepdroid.getInstance().scanDevices();
}

void draw() {
  background(20);
  
  //draw the four buttons
  
  
  fill(255);
}

void mousePressed()
{ 
  //make message
  String msg =    "C0I0T0G";
  //String msg = new String("C" + str(channel) + "I" + intensities[channel] + "T" + signalLengths[channel] + "G");
  
  //send message
  Blepdroid.getInstance().writeCharacteristic(device1, EMS_UUID_SERVICE, msg.getBytes());
  
  //print message
  println("SEND: " + msg);
  print(new String(msg.getBytes(),0));
}

void onDeviceDiscovered(BlepdroidDevice device)
{
  println("discovered device " + device.name + " address: " + device.address + " rssi: " + device.rssi );

  if (device.name != null && device.name.equals(openEMSstim_device_1_name))
  {
    if (Blepdroid.getInstance().connectDevice(device))
    {
      println(" connected device 1 (a.k.a." + openEMSstim_device_1_name + ")");
      device1 = device;
    } else println(" couldn't connect device (a.k.a." + openEMSstim_device_1_name + ")");
  }
  
  if (device.name != null && device.name.equals(openEMSstim_device_2_name))
  {
    if (Blepdroid.getInstance().connectDevice(device))
    {
      println(" connected device 2 (a.k.a." + openEMSstim_device_2_name + ")");
      device2 = device;
    } else println(" couldn't connect device 2 (a.k.a." + openEMSstim_device_2_name + ")");
  }
  
}

void onServicesDiscovered(BlepdroidDevice device, int status)
{
  HashMap<String, ArrayList<String>> servicesAndCharas = Blepdroid.getInstance().findAllServicesCharacteristics(device);
  for( String service : servicesAndCharas.keySet())
  {
    print( service + " has " );
    // this will list the UUIDs of each service, in the future we're going to make
    // this tell you more about each characteristic, e.g. whether it's readable or writable
    println(servicesAndCharas.get(service));
    
  }
  
  // we want to set this for whatever device we just connected to
  //Blepdroid.getInstance().setCharacteristicToListen(device, RFDUINO_UUID_RECEIVE); //wow.. this was set like this?
  allSetUp = true;
}

// these are all the BLE callbacks
void onBluetoothRSSI(BlepdroidDevice device, int rssi)
{
  println(" onBluetoothRSSI " + device.address + " " + Integer.toString(rssi));
}

void onBluetoothConnection( BlepdroidDevice device, int state)
{
  Blepdroid.getInstance().discoverServices(device);
}

void onCharacteristicChanged(BlepdroidDevice device, String characteristic, byte[] data)
{
  String dataString = new String(data);
  println(" onCharacteristicChanged " + characteristic + " " + dataString  );
}

void onDescriptorWrite(BlepdroidDevice device, String characteristic, String data)
{
  println(" onDescriptorWrite " + characteristic + " " + data);
}

void onDescriptorRead(BlepdroidDevice device, String characteristic, String data)
{
  println(" onDescriptorRead " + characteristic + " " + data);
}

void onCharacteristicRead(BlepdroidDevice device, String characteristic, byte[] data)
{
  println(" onCharacteristicRead " + characteristic + " " + data);
}

void onCharacteristicWrite(BlepdroidDevice device, String characteristic, byte[] data)
{
  println(" onCharacteristicWrite " + characteristic + " " + data);
}