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boards/default/micropython/build/lib/ble_handle.py

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+"""
+Bluetooth remote control handle
+
+Micropython library for the Bluetooth remote control handle
+=======================================================
+#Preliminary composition	       202200704
+
+dahanzimin From the Mixly Team 
+"""
+
+from ble_peripheral import BLESimplePeripheral
+
+class Handle(BLESimplePeripheral):
+	def __init__(self):
+		super().__init__(name="TUDAO_MASTER")
+		self._buffer=bytearray(14)
+
+	def _receive_cb(self, data):
+			if self._on_receive:
+				if data !=self._buffer:
+					self._buffer=data
+					key=self._deal(self._buffer)
+					self._on_receive(key[0],key[1],key[2],key[3])	
+	
+	def recv(self,callback):
+		self._on_receive = callback
+		if callback:
+			super().recv(self._receive_cb)
+
+	def _u2s(self,n):
+		return n if n < (1 << 7) else n - (1 << 8)	
+
+	def _deal(self,data):
+		if data[0]== 0xff and data[1]== 0xfe and data[12]== 0xfd and data[13]== 0xfc:
+			return self._u2s(data[5]),self._u2s(data[6]),self._u2s(data[7]),self._u2s(data[8])
+		else:
+			return None,None,None,None