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boards/default/micropython/build/lib/cc_g1.py

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+"""
+CC_G1
+
+Micropython	library for the CC_G1(Remote control handle)
+=======================================================
+
+#Preliminary composition	  	    			20231222
+
+@dahanzimin From the Mixly Team
+"""
+from micropython import const
+from machine import Pin,SoftI2C
+
+_CC_G1_ADDRESS			= const(0x27)
+_CC_G1_ID				= const(0x00)
+_CC_G1_VBAT				= const(0x01)
+_CC_G1_ADC				= const(0x03)
+_CC_G1_KEY				= const(0x07)
+
+class Handle:
+	def __init__(self, i2c_bus, addr=_CC_G1_ADDRESS):
+		self._i2c=i2c_bus
+		self._addr = addr
+		if self._rreg(_CC_G1_ID)!= 0x27:
+			raise AttributeError("Cannot find a CC_G1")
+
+	def _wreg(self, reg, val):
+		'''Write memory address'''
+		try:
+			self._i2c.writeto_mem(self._addr, reg, val.to_bytes(1, 'little'))
+		except:
+			return 0 
+
+	def _rreg(self, reg, nbytes=1):
+		'''Read memory address'''
+		try:
+			self._i2c.writeto(self._addr, reg.to_bytes(1, 'little'))
+			return  self._i2c.readfrom(self._addr, nbytes)[0] if nbytes<=1 else self._i2c.readfrom(self._addr, nbytes)[0:nbytes]
+		except:
+			return 0
+
+	def read_bat(self, ratio=5/1023):
+		'''Read battery power'''
+		vbat = self._rreg(_CC_G1_VBAT)<<2 | self._rreg(_CC_G1_VBAT+1)>>6
+		return round(vbat*ratio, 2)
+
+	def read_joystick(self, ratio=100/1023):
+		'''Read joystick'''
+		y_axis = 1023 - (self._rreg(_CC_G1_ADC) << 2 | self._rreg(_CC_G1_ADC + 1) >> 6)
+		x_axis = self._rreg(_CC_G1_ADC + 2 ) << 2 | self._rreg(_CC_G1_ADC + 3) >> 6
+		return round(x_axis*ratio), round(y_axis*ratio)
+	
+	def read_key(self, index):
+		'''Read key1~6'''
+		if not 0 <= index <= 5:
+			raise ValueError("The key number must be a number in the range: 0~5")
+		if index<=4:
+			return bool(self._rreg(_CC_G1_KEY) >> index & 0x01)
+		else:
+			return bool(self._rreg(_CC_G1_KEY) >> 7 & 0x01)
+
+	def shutdown(self, flag=True):
+		"""This function is only available on battery power"""
+		if flag:
+			self._wreg(_CC_G1_KEY, (self._rreg(_CC_G1_KEY)) & 0XBF)
+		else:
+			self._wreg(_CC_G1_KEY, (self._rreg(_CC_G1_KEY)) | 0X40)
+
+'''Select instantiation objects'''
+try:
+	#MixGo CC/ME
+	ext_i2c = SoftI2C(scl=Pin(0), sda=Pin(1), freq=100000)
+	handle = Handle(ext_i2c)
+except:
+	try:
+		#MixGo CE
+		ext_i2c = SoftI2C(scl=Pin(17), sda=Pin(18), freq=100000)
+		handle = Handle(ext_i2c)
+	except:
+		try:
+			#MixGo 	Mini
+			ext_i2c = SoftI2C(scl=Pin(8), sda=Pin(7), freq=100000)
+			handle = Handle(ext_i2c)
+		except:
+			print("MixGo board cannot find a CC_G1")