diff --git a/boards/default_src/micropython_esp32c2/origin/build/lib/mini_bot.py b/boards/default_src/micropython_esp32c2/origin/build/lib/mini_bot.py
index ad8a4b6a..de1343e4 100644
--- a/boards/default_src/micropython_esp32c2/origin/build/lib/mini_bot.py
+++ b/boards/default_src/micropython_esp32c2/origin/build/lib/mini_bot.py
@@ -17,11 +17,11 @@ _BOT035_SPK			= const(0x07)
 _BOT035_PWM			= const(0x0B)
 _BOT035_FLAG		= const(0x0F)
 _BOT035_LEDS		= const(0x10)
-_BOT035_PGA			= const(0x20)
 _BOT035_KB			= const(0x1C)
 _BOT035_MS			= const(0x20)
 _BOT035_STR			= const(0x24)
 _BOT035_STA			= const(0x25)
+_BOT035_PCM			= const(0x26)
 _FONT_W				= const(5)
 _FONT_H				= const(8)
 _LEDS_W				= const(12)
@@ -35,8 +35,8 @@ class BOT035(FrameBuffer):
 		self._buffer = bytearray(12)
 		self._brightness = brightness
 		self._touchs = [self.touch(0), self.touch(1)]
-		self._version = True if self._rreg(0x00) >= 0x27 else False
 		super().__init__(self._buffer, _LEDS_W, _LEDS_H, MONO_VLSB)
+		self.version()
 		self.reset()
 		self.show()
 	
@@ -229,23 +229,29 @@ class BOT035(FrameBuffer):
 	def _rreg(self, reg, nbytes=1):
 		'''Read memory address'''
 		self._i2c.writeto(_BOT035_ADDRESS, reg.to_bytes(1, 'little'))
-		return  self._i2c.readfrom(_BOT035_ADDRESS, nbytes)[0]
+		return  self._i2c.readfrom(_BOT035_ADDRESS, nbytes)[0] if nbytes <= 1 else self._i2c.readfrom(_BOT035_ADDRESS, nbytes)
 
 	def version(self):
 		_ver = self._rreg(0x00)
 		if _ver == 0x26:
-			return "v1.7", "Only supports CDC serial port"
+			self._version = 0
+			return "v1.7", "Only support CDC serial port"
 		elif _ver == 0x27:
-			return "v2.5", "Composite devices (CDC, keyboard and mouse)"
+			self._version = 1
+			return "v2.5", "Composite devices (CDC, Keyboard and Mouse)"
 		elif _ver == 0x28:
-			return "v2.9", "Composite devices (CDC, HID, WEBUSB, Keyboard and mouse)"		
+			self._version = 2
+			return "v2.9", "Composite devices (CDC, HID, WEBUSB, Keyboard and Mouse)"
+		elif _ver == 0x29:
+			self._version = 3
+			return "v3.0", "Composite devices (CDC, HID, WEBUSB, Keyboard and Mouse), Support PCM collection for MIC"
 		else:
 			return "vx.x", "Unknown, awaiting update"
 
 	def reset(self):
 		"""Reset SPK, PWM, HID registers to default state"""
-		self._i2c.writeto_mem(_BOT035_ADDRESS, _BOT035_SPK, b'\x0A\x00\x00\x00\x20\x4E\x64\x64')
-		if self._version: self._i2c.writeto_mem(_BOT035_ADDRESS, _BOT035_KB, bytes(9))
+		self._i2c.writeto_mem(_BOT035_ADDRESS, _BOT035_SPK, b'\x0A\x00\x00\x00\x20\x4E\x64\x64\x28')
+		if self._version: self._i2c.writeto_mem(_BOT035_ADDRESS, _BOT035_KB, bytes(10))
 
 	def get_brightness(self):
 		return self._brightness
@@ -254,7 +260,7 @@ class BOT035(FrameBuffer):
 		if not 0.0 <= brightness <= 1.0:
 			raise ValueError("Brightness must be a decimal number in the range: 0.0-1.0")
 		self._brightness = brightness
-		self._wreg(_BOT035_FLAG, _BOT035_PGA | round(10 * brightness))
+		self._wreg(_BOT035_FLAG, (self._rreg(_BOT035_FLAG) & 0x0F) | round(10 * brightness))
 
 	def show(self):
 		self._i2c.writeto_mem(_BOT035_ADDRESS, _BOT035_LEDS, self._buffer)
@@ -341,6 +347,46 @@ class BOT035(FrameBuffer):
 		else:
 			print("Warning: Please upgrade the coprocessor firmware to use this feature")
 
+	def mic_pga(self, value=None):
+		if value is None:
+			return self._rreg(_BOT035_FLAG) >> 4
+		else:
+			self._wreg(_BOT035_FLAG, (self._rreg(_BOT035_FLAG) & 0x0F) | (value & 0x03) << 4)
+
+	def pcm_power(self, power=None):
+		if self._version >= 3:
+			if power is None:
+				return bool(self._rreg(_BOT035_STA) & 0x08)
+			else:
+				self._wreg(_BOT035_STA, (self._rreg(_BOT035_STA) & 0xF7) | (power & 0x01) << 3)
+		else:
+			print("Warning: Please upgrade the coprocessor firmware to use this feature")
+
+	def pcm_state(self, power=None):
+		return bool(self._rreg(_BOT035_STA) & 0x80)
+
+	def pcm_data(self, ibuf=1600):
+		return self._rreg(_BOT035_PCM, ibuf)
+
+	def pcm_record(self, path='mixly.wav', seconds=5, ibuf=1600, timeout=2000):
+		if self._version >= 3:
+			self.pcm_power(True)
+			_star = time.ticks_ms()
+			_size = int(ibuf * seconds * 10)
+			_header = b'RIFF' + (36 + _size).to_bytes(4, 'little') + b'WAVEfmt \x10\x00\x00\x00\x01\x00\x01\x00' + (ibuf * 5).to_bytes(4, 'little') + (ibuf * 10).to_bytes(4, 'little') + b'\x02\x00\x10\x00data' + _size.to_bytes(4, 'little')
+			with open(path, 'wb') as f:
+				f.write(_header)
+				while _size > 0:
+					if self.pcm_state():
+						f.write(self.pcm_data(ibuf))
+						_size -= ibuf
+						_star = time.ticks_ms()
+					if time.ticks_diff(time.ticks_ms(), _star) > timeout:
+						raise OSError("Timeout write error")
+				self.pcm_power(False)
+		else:
+			print("Warning: Please upgrade the coprocessor firmware to use this feature")
+
 	"""Graph module"""
 	HEART =b'\x00\x0c\x1e?~\xfc~?\x1e\x0c\x00\x00'
 	HEART_SMALL =b'\x00\x00\x0c\x1e<x<\x1e\x0c\x00\x00\x00'
diff --git a/boards/default_src/micropython_esp32c2/origin/build/lib/mixgo_mini.py b/boards/default_src/micropython_esp32c2/origin/build/lib/mixgo_mini.py
index 59ffc77c..ce98a426 100644
--- a/boards/default_src/micropython_esp32c2/origin/build/lib/mixgo_mini.py
+++ b/boards/default_src/micropython_esp32c2/origin/build/lib/mixgo_mini.py
@@ -69,10 +69,6 @@ except Exception as e:
 def onboard_temperature():
 	return mcu_temperature()
 
-'''2RGB_WS2812'''    
-from ws2812x import NeoPixel
-onboard_rgb = NeoPixel(Pin(9), 2)
-
 '''1Buzzer-Music'''
 from musicx import MIDI
 onboard_music = MIDI(onboard_bot)
@@ -84,7 +80,7 @@ class KEYSensor:
 		self.adc = ADC(Pin(pin), atten=ADC.ATTN_0DB)
 		self.range = range
 		self.flag = True
-	
+
 	def _value(self):
 		values = []
 		for _ in range(50):
@@ -92,7 +88,7 @@ class KEYSensor:
 			time.sleep_us(2)
 		return (self.range-200) < min(values) < (self.range+200)
 
-	def get_presses(self, delay = 1):
+	def get_presses(self, delay=1):
 		last_time,presses = time.time(), 0
 		while time.time() < last_time + delay:
 			time.sleep_ms(50)
@@ -112,7 +108,13 @@ class KEYSensor:
 				return False
 
 	def irq(self, handler, trigger):
-		Pin(self.pin, Pin.IN).irq(handler = handler, trigger = trigger)
+		self.handler = handler
+		self.trigger = trigger
+		Pin(self.pin, Pin.IN).irq(handler=handler, trigger=trigger)
+
+	def irq_en(self, enable):
+		if self.handler is not None and self.trigger is not None:
+			Pin(self.pin, Pin.IN).irq(handler=None if enable else self.handler, trigger=self.trigger)
 
 '''1KEY_Button'''
 class Button(KEYSensor):
@@ -120,6 +122,8 @@ class Button(KEYSensor):
 		self.pin = pin
 		self.key = Pin(pin, Pin.IN)
 		self.flag = True
+		self.handler = None
+		self.trigger = None
 
 	def _value(self):
 		return not self.key.value()
@@ -131,6 +135,10 @@ A2key = KEYSensor(0, 1500)
 A3key = KEYSensor(0, 800)
 A4key = KEYSensor(0, 2700)
 
+'''2RGB_WS2812 #Public IO'''    
+from ws2812x import NeoPixel
+onboard_rgb = NeoPixel(B1key.key, 2, func=B1key.irq_en)
+
 '''2LED-Multiplex RGB'''
 class LED:
     def __init__(self, rgb, num=2, color=7):
diff --git a/boards/default_src/micropython_esp32c2/origin/build/lib/ws2812x.py b/boards/default_src/micropython_esp32c2/origin/build/lib/ws2812x.py
index d338460a..abe90fd6 100644
--- a/boards/default_src/micropython_esp32c2/origin/build/lib/ws2812x.py
+++ b/boards/default_src/micropython_esp32c2/origin/build/lib/ws2812x.py
@@ -9,10 +9,11 @@ from time import sleep, sleep_us
 from machine import bitstream
 
 class NeoPixel:
-	def __init__(self, pin, n, bpp=3, timing=1, ORDER=(1, 0, 2, 3)):
+	def __init__(self, pin, n, bpp=3, timing=1, ORDER=(1, 0, 2, 3), func=None):
 		self.pin = pin
 		self.bpp = bpp
 		self.rgbs = n
+		self.func = func
 		self.ORDER = ORDER
 		self.rgb_buf = bytearray(self.rgbs * bpp)
 		self.timing = (((350, 850, 800, 400) if timing else (800, 1700, 1600, 900))	if isinstance(timing, int) else timing)
@@ -36,10 +37,12 @@ class NeoPixel:
 				j += self.bpp
 
 	def write(self):
+		if self.func: self.func(True)
 		self.pin.init(self.pin.OUT, value=0)
 		bitstream(self.pin, 0, self.timing, bytes(3) + self.rgb_buf)
 		sleep_us(150)
 		self.pin.init(self.pin.IN)
+		if self.func: self.func(False)
 
 	def color_chase(self,R, G, B, wait):
 		for i in range(self.rgbs):