// Copyright (c) 2018 p5ble

//

// This software is released under the MIT License.

// https://opensource.org/licenses/MIT

​

//const serviceUuid = "19b10000-e8f2-537e-4f6c-d104768a1214";

const serviceUuid = "98d5f3d5-f740-42b9-b52f-971628c5a068";

let myCharacteristic;

let input;

let myBLE;

​

function setup() {

  myBLE = new p5ble();

​

  // Create a 'Connect' button

  const connectButton = createButton('Connect')

  connectButton.mousePressed(connectToBle);

  connectButton.position(15, 65);

​

  // Create a text input

  input = createInput();

  input.position(15, 100);

​

  // Create a 'Write' button

  const writeButton = createButton('Write');

  writeButton.position(input.x + input.width + 15, 100);

  writeButton.mousePressed(writeToBle);

}

​

function connectToBle() {

  // Connect to a device by passing the service UUID

  myBLE.connect(serviceUuid, gotCharacteristics);

}

​

function gotCharacteristics(error, characteristics) {

  if (error) console.log('error: ', error);

  console.log('characteristics: ', characteristics);

  // Set the first characteristic as myCharacteristic

  myCharacteristic = characteristics[0];

}

​

function writeToBle() {

  const inputValue = input.value();

  // Write the value of the input to the myCharacteristic

  myBLE.write(myCharacteristic, inputValue);

}

​