Integrare Arduino con Unity

Codemotion Tech Meetup 2015 Roma

int pulsePin = 0;int blinkPin = 13;

volatile int BPM;volatile int Signal;volatile int IBI = 600;volatile boolean Pulse = false;volatile boolean QS = false;

void setup(){ Serial.begin(9600); pinMode(blinkPin, OUTPUT);

interruptSetup();}

void loop(){ if (QS == true) { Serial.println(BPM); QS = false; }

delay(20);}

using UnityEngine; using System.Collections; using System.Threading; using System.IO.Ports; using UnityEngine.UI;

public class DetectPulseRate : MonoBehaviour { public static SerialPort serialPort; public static string streamRead; public static int BPM;

public GameObject heartImg; public GameObject heartText;

void Start() {

OpenConnection(); }

public void OpenConnection() {

serialPort = new SerialPort("/dev/tty.usbmodem1421", 9600, Parity.None, 8, StopBits.One);

if(serialPort != null) {

if(serialPort.IsOpen) {

serialPort.Close(); Debug.Log ("Chiudo la porta, perché è già aperta"); } else { serialPort.Open(); serialPort.ReadTimeout = 100; Debug.Log("Porta aperta!"); } }

else {

if(serialPort.IsOpen) Debug.Log("La porta è già aperta"); }

}

void FixedUpdate() { if(serialPort.IsOpen && serialPort.BytesToRead > 0) { streamRead = serialPort.ReadLine(); BPM = int.Parse(streamRead);

heartImg.transform.localScale = new Vector3(0, 0, 1); }

Vector3 heartScale = new Vector3(BPM / 100.0f, BPM / 100.0f, 1);

heartText.GetComponent<Text>().text = "BPM " + BPM; heartImg.transform.localScale = Vector3.Lerp(heartImg.transform.localScale, heartScale, 0.1f);

serialPort.BaseStream.Flush(); }

void OnApplicationQuit() { // Chiudo la porta quando esco

if (serialPort != null) serialPort.Close(); } }

Demo

Grazie!Riferimenti:

• Mail: giorgio.pomettini@gmail.com

• Github: https://github.com/dreamquest

Materiale utilizzato:

• Pulse Sensor: http://pulsesensor.com/

• Github: https://github.com/WorldFamousElectronics