Arduino code for a bluetooth Makey Makey running on an ESP8266

BTMakeyMakey

#include <Wire.h>
#define ttp229 (0xAF>>1)
uint16_t data_out = 0;
uint16_t data1, data2;
int count = 0;
boolean count2 = false;

// https://github.com/witnessmenow/BPLib
#include <BPLib.h>
#include <SoftwareSerial.h>

#define RX_PIN D6 // connect to TXD of module
#define TX_PIN D5 // connect to RXD of module (logic level 3.3v!)

SoftwareSerial swSer(RX_PIN, TX_PIN, false, 128);

char keyLookUp[] = { 'a', 'w', 's', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q' };

int button[16];
int oldata[16];

BPLib *BPMod;

void setup()
{
  Serial.begin(115200);
  swSer.begin(115200);

  BPMod = new BPLib(swSer);
  BPMod->begin(BP_MODE_HID,BP_HID_KEYBOARD);   //Begin HID Mode with HID KEYBOARD AS TYPE

  Wire.begin();
}

void loop()
{
  Wire.requestFrom(ttp229, 2, true);
  delay(1);
  while (Wire.available())
  {
    data1 = Wire.read();
    data2 = Wire.read();
    data_out = (data1 << 8) | data2;
    for (int i = 1; i < 17; i++)
    {
      uint16_t contrast = 0x8000;
      if (data_out & contrast)
      {
        //Serial.println(i);
        button[count] = i;
        count++;
        delay(1);
      }
      data_out <<= 1;
    }
    if (count2)
    {
      switch (count)
      {
        case 1:
          if (oldata[0] == button[0])
          {
            Serial.println(button[0]);
            BPMod->sendChar(keyLookUp[button[0] -1]);
            delay(20);
          }
          break;
        case 2:
          if (oldata[0] == button[0] && oldata[1] == button[1])
          {
            for (int i = 0; i < 2; i++)
            {
              Serial.print(button[i]);
              BPMod->sendChar(keyLookUp[button[i] -1]);
              Serial.print("  ");
              delay(10);
            }
          }
          break;
      }
    }
    delay(50);
    for (int i = 0; i < 16; i++)
    {
      oldata[i] = button[i];
    }
    count = 0;
    count2 = !count2;
  }
}