add piano example

.gitignore

@@ -0,0 +1,2 @@
+
+siwatlib/__pycache__/

piano.py

@@ -1,20 +1,26 @@
 from time import sleep
 from telemetrix_rpi_pico import telemetrix_rpi_pico
+from siwatlib.debounce import debounce
+from siwatlib.sound import beep
+
 import winsound
 
 index_shift = 2
-sound = [261.6256,293.6648,329.6276,349.2282,391.9954,440.0000,493.8833,523.2511]
+freqs = [261.6256,293.6648,329.6276,349.2282,391.9954,440.0000,493.8833,523.2511]
+
+debouncers = []
 
 def handle_button_press(data):
-    freq = sound[data[1]-index_shift]
+    freq = freqs[data[1]-index_shift]
     print(freq)
-    if data[2] == 0:
-        winsound.Beep(int(freq),500)
-        
-
+    recieved_state = not data[2]
+    if debouncers[data[1]-index_shift].set_state(state=recieved_state):
+        beep(frequency=freq,duration=0.25)
 
 mcu = telemetrix_rpi_pico.TelemetrixRpiPico(com_port='COM10')
+
 for i in range(2,10):
+    debouncers.append(debounce(state=False,debounce_time=0.15))
     mcu.set_pin_mode_digital_input(i,callback=handle_button_press)
 while True:
     sleep(100)

siwatlib/debounce.py

@@ -0,0 +1,12 @@
+from time import perf_counter as seconds
+class debounce:
+    def __init__(self,state: bool, debounce_time: float) -> None:
+        self.last_pressed = seconds()
+        self.debounce_time = debounce_time
+        self.state = state
+    def set_state(self, state: bool) -> bool:
+        if seconds()-self.last_pressed > self.debounce_time:
+            self.state = state
+            return self.state
+        else:
+            return self.state

siwatlib/sound.py

@@ -0,0 +1,27 @@
+from pysine import pysine
+import winsound
+import threading
+
+MODE = 'pysine'
+
+global __beeper__
+
+def __beeper_therad__(frequency: float, duration: float):
+    if MODE == 'winsound':
+        winsound.Beep(frequency=int(frequency), duration=int(duration*1000))
+    elif MODE == 'pysine':
+        pysine.sine(frequency=frequency,duration=duration)
+
+__beeper__ = threading.Thread(target=__beeper_therad__,
+                     kwargs={'frequency': 0, 'duration': 0}
+                     )
+
+def beep(frequency: float, duration: float):
+    global __beeper__
+    if not __beeper__.is_alive():
+        __beeper__ = threading.Thread(target=__beeper_therad__,
+                     kwargs={'frequency': frequency, 'duration': duration}
+                     )
+        __beeper__.start()
+    
+