diff --git a/thread_dd.py b/thread_dd.py
new file mode 100644
index 0000000..00e1d53
--- /dev/null
+++ b/thread_dd.py
@@ -0,0 +1,58 @@
+from threading import Thread
+import time
+from RPi import GPIO
+
+class DD(Thread):
+	
+	#Constructeur
+	def __init__(self, pin, t_notes, t_tps):
+		Thread.__init__(self);
+		self.pin = pin
+		self.t_notes = t_notes
+		self.t_tps = t_tps
+
+	def run(self):
+		p = GPIO.PWM(self.pin,220)
+		p.start(15)
+		i = 0
+		while(i<len(self.t_notes)-1):
+			p.ChangeFrequency(self.t_notes[i])
+			time.sleep(self.t_tps[i])
+			i+=1
+		GPIO.cleanup()
+
+notes=[220,1,220,1,220,1,174.5,1,261.5,1,220,1,174.5,1,261.5,1,220,1]
+tps = [1,0.02,1,0.02,1,0.02,0.4,0.05,0.6,0.05,0.4,0.05,0.6,0.05,0.4,0.05,0.6,0.05]
+
+GPIO.setmode(GPIO.BCM)
+#DD1
+GPIO.setup(23,GPIO.OUT)
+GPIO.setup(24,GPIO.OUT)
+GPIO.setup(25,GPIO.OUT)
+#DD2
+GPIO.setup(16,GPIO.OUT)
+GPIO.setup(20,GPIO.OUT)
+GPIO.setup(21,GPIO.OUT)
+#PWM
+GPIO.setup(18,GPIO.OUT)
+GPIO.setup(13,GPIO.OUT)
+#Act DD1
+GPIO.output(23,GPIO.LOW)
+GPIO.output(24,GPIO.LOW)
+GPIO.output(25,GPIO.LOW)
+#Act DD2
+GPIO.output(16,GPIO.LOW)
+GPIO.output(20,GPIO.LOW)
+GPIO.output(21,GPIO.LOW)
+
+#Creation des threads
+thread1 = DD(18,notes,tps)
+thread2 = DD(13,notes,tps)
+
+#Lancement des threads
+thread1.start()
+thread2.start()
+
+#Synchro
+thread1.join()
+thread2.join()
--
libgit2 0.21.2