first push!

Assets/Shatalmic/Example/ArduinoHM10Test/ArduinoHM10Test.cs

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+/* This is an example to show how to connect to 2 HM-10 devices
+ * that are connected together via their serial pins and send data
+ * back and forth between them.
+ */
+
+using UnityEngine;
+using System.Collections.Generic;
+using UnityEngine.UI;
+using System.Text;
+
+public class ArduinoHM10Test : MonoBehaviour
+{
+	public string DeviceName = "DSD TECH";
+	public string ServiceUUID = "FFE0";
+	public string Characteristic = "FFE1";
+
+	public Text HM10_Status;
+	public Text BluetoothStatus;
+	public GameObject PanelMiddle;
+	public Text TextToSend;
+
+	enum States
+	{
+		None,
+		Scan,
+		Connect,
+		RequestMTU,
+		Subscribe,
+		Unsubscribe,
+		Disconnect,
+		Communication,
+	}
+
+	private bool _workingFoundDevice = true;
+	private bool _connected = false;
+	private float _timeout = 0f;
+	private States _state = States.None;
+	private bool _foundID = false;
+
+	// this is our hm10 device
+	private string _hm10;
+
+	public void OnButton(Button button)
+	{
+		if (button.name.Contains ("Send"))
+		{
+			if (string.IsNullOrEmpty (TextToSend.text))
+			{
+				BluetoothStatus.text = "Enter text to send...";
+			}
+			else
+			{
+				SendString (TextToSend.text);
+			}
+		}
+		else if (button.name.Contains("Toggle"))
+		{
+			SendByte (0x01);
+		}
+	}
+
+	void Reset ()
+	{
+		_workingFoundDevice = false;	// used to guard against trying to connect to a second device while still connecting to the first
+		_connected = false;
+		_timeout = 0f;
+		_state = States.None;
+		_foundID = false;
+		_hm10 = null;
+		PanelMiddle.SetActive (false);
+	}
+
+	void SetState (States newState, float timeout)
+	{
+		_state = newState;
+		_timeout = timeout;
+	}
+
+	void StartProcess ()
+	{
+		BluetoothStatus.text = "Initializing...";
+
+		Reset ();
+		BluetoothLEHardwareInterface.Initialize (true, false, () => {
+			
+			SetState (States.Scan, 0.1f);
+			BluetoothStatus.text = "Initialized";
+
+		}, (error) => {
+			
+			BluetoothLEHardwareInterface.Log ("Error: " + error);
+		});
+	}
+
+	// Use this for initialization
+	void Start ()
+	{
+		HM10_Status.text = "";
+
+		StartProcess ();
+	}
+	
+	// Update is called once per frame
+	void Update ()
+	{
+		if (_timeout > 0f)
+		{
+			_timeout -= Time.deltaTime;
+			if (_timeout <= 0f)
+			{
+				_timeout = 0f;
+
+				switch (_state)
+				{
+				case States.None:
+					break;
+
+				case States.Scan:
+					BluetoothStatus.text = "Scanning for HM10 devices...";
+
+					BluetoothLEHardwareInterface.ScanForPeripheralsWithServices (null, (address, name) => {
+
+						// we only want to look at devices that have the name we are looking for
+						// this is the best way to filter out devices
+						if (name.Contains (DeviceName))
+						{
+							_workingFoundDevice = true;
+
+							// it is always a good idea to stop scanning while you connect to a device
+							// and get things set up
+							BluetoothLEHardwareInterface.StopScan ();
+							BluetoothStatus.text = "";
+
+							// add it to the list and set to connect to it
+							_hm10 = address;
+
+							HM10_Status.text = "Found HM10";
+
+							SetState (States.Connect, 0.5f);
+
+							_workingFoundDevice = false;
+						}
+
+					}, null, false, false);
+					break;
+
+				case States.Connect:
+					// set these flags
+					_foundID = false;
+
+					HM10_Status.text = "Connecting to HM10";
+
+					// note that the first parameter is the address, not the name. I have not fixed this because
+					// of backwards compatiblity.
+					// also note that I am note using the first 2 callbacks. If you are not looking for specific characteristics you can use one of
+					// the first 2, but keep in mind that the device will enumerate everything and so you will want to have a timeout
+					// large enough that it will be finished enumerating before you try to subscribe or do any other operations.
+					BluetoothLEHardwareInterface.ConnectToPeripheral (_hm10, null, null, (address, serviceUUID, characteristicUUID) => {
+
+						if (IsEqual (serviceUUID, ServiceUUID))
+						{
+							// if we have found the characteristic that we are waiting for
+							// set the state. make sure there is enough timeout that if the
+							// device is still enumerating other characteristics it finishes
+							// before we try to subscribe
+							if (IsEqual (characteristicUUID, Characteristic))
+							{
+								_connected = true;
+								SetState (States.RequestMTU, 2f);
+
+								HM10_Status.text = "Connected to HM10";
+							}
+						}
+					}, (disconnectedAddress) => {
+						BluetoothLEHardwareInterface.Log ("Device disconnected: " + disconnectedAddress);
+						HM10_Status.text = "Disconnected";
+					});
+					break;
+
+					case States.RequestMTU:
+						HM10_Status.text = "Requesting MTU";
+
+						BluetoothLEHardwareInterface.RequestMtu(_hm10, 185, (address, newMTU) =>
+						{
+							HM10_Status.text = "MTU set to " + newMTU.ToString();
+
+							SetState(States.Subscribe, 0.1f);
+						});
+						break;
+
+					case States.Subscribe:
+					HM10_Status.text = "Subscribing to HM10";
+
+					BluetoothLEHardwareInterface.SubscribeCharacteristicWithDeviceAddress (_hm10, ServiceUUID, Characteristic, null, (address, characteristicUUID, bytes) => {
+
+						HM10_Status.text = "Received Serial: " + Encoding.UTF8.GetString (bytes);
+					});
+
+					// set to the none state and the user can start sending and receiving data
+					_state = States.None;
+					HM10_Status.text = "Waiting...";
+
+					PanelMiddle.SetActive (true);
+					break;
+
+				case States.Unsubscribe:
+					BluetoothLEHardwareInterface.UnSubscribeCharacteristic (_hm10, ServiceUUID, Characteristic, null);
+					SetState (States.Disconnect, 4f);
+					break;
+
+				case States.Disconnect:
+					if (_connected)
+					{
+						BluetoothLEHardwareInterface.DisconnectPeripheral (_hm10, (address) => {
+							BluetoothLEHardwareInterface.DeInitialize (() => {
+								
+								_connected = false;
+								_state = States.None;
+							});
+						});
+					}
+					else
+					{
+						BluetoothLEHardwareInterface.DeInitialize (() => {
+							
+							_state = States.None;
+						});
+					}
+					break;
+				}
+			}
+		}
+	}
+
+	string FullUUID (string uuid)
+	{
+		return "0000" + uuid + "-0000-1000-8000-00805F9B34FB";
+	}
+	
+	bool IsEqual(string uuid1, string uuid2)
+	{
+		if (uuid1.Length == 4)
+			uuid1 = FullUUID (uuid1);
+		if (uuid2.Length == 4)
+			uuid2 = FullUUID (uuid2);
+
+		return (uuid1.ToUpper().Equals(uuid2.ToUpper()));
+	}
+
+	void SendString(string value)
+	{
+		var data = Encoding.UTF8.GetBytes (value);
+		// notice that the 6th parameter is false. this is because the HM10 doesn't support withResponse writing to its characteristic.
+		// some devices do support this setting and it is prefered when they do so that you can know for sure the data was received by 
+		// the device
+		BluetoothLEHardwareInterface.WriteCharacteristic (_hm10, ServiceUUID, Characteristic, data, data.Length, false, (characteristicUUID) => {
+
+			BluetoothLEHardwareInterface.Log ("Write Succeeded");
+		});
+	}
+
+	void SendByte (byte value)
+	{
+		byte[] data = new byte[] { value };
+		// notice that the 6th parameter is false. this is because the HM10 doesn't support withResponse writing to its characteristic.
+		// some devices do support this setting and it is prefered when they do so that you can know for sure the data was received by 
+		// the device
+		BluetoothLEHardwareInterface.WriteCharacteristic (_hm10, ServiceUUID, Characteristic, data, data.Length, false, (characteristicUUID) => {
+			
+			BluetoothLEHardwareInterface.Log ("Write Succeeded");
+		});
+	}
+}

Assets/Shatalmic/Example/ArduinoHM10Test/ArduinoHM10Test.cs.meta

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Assets/Shatalmic/Example/ArduinoHM10Test/ArduinoHM10Test.ino

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+/*
+  Arduino HM10 Bluetooth Test for Unity Plugin
+  Language: Wiring/Arduino
+
+  This program waits for input from the Unity app and reflects any strings back
+  to that app. If this app receives a single byte of 0x01 it will toggle the led
+
+  The circuit:
+  - connect HM10 BLE device to serial RX/TX lines
+
+  created 05 July 2018
+  by Tony Pitman
+
+  http://www.shatalmic.com/arduino-hm10-test
+*/
+
+int inByte = 0;         // incoming serial byte
+boolean ledStatus = false;
+
+void setup() {
+  // start serial port at 9600 bps and wait for port to open:
+  Serial.begin(9600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+    // initialize digital pin LED_BUILTIN as an output.
+  pinMode(LED_BUILTIN, OUTPUT);
+  digitalWrite(LED_BUILTIN, LOW);
+}
+
+void loop() {
+  // if we get a valid byte, read analog ins:
+  if (Serial.available() > 0) {
+    // get incoming byte:
+    inByte = Serial.read();
+    if (inByte == 0x01) {
+      if (ledStatus) {
+        digitalWrite(LED_BUILTIN, HIGH);
+        Serial.print("Setting LED On");
+        ledStatus = false;
+      }
+      else {
+        digitalWrite(LED_BUILTIN, LOW);
+        Serial.print("Setting LED Off");
+        ledStatus = true;
+      }
+    }
+    else {
+      Serial.write(inByte);
+    }
+  }
+}
+

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