增加TVOC检测库，修复ASR声音采集

boards/default_src/micropython/origin/build/lib/tvoc07s.py

@@ -0,0 +1,39 @@
+"""
+TVOC
+
+Micropython library for the TVOC(UART)
+=======================================================
+@dahanzimin From the Mixly Team 
+"""
+import time
+
+class TVOC:
+    def __init__(self, uart):
+        self._uart = uart
+        self._uart.init(baudrate=9600)
+        self._tvoc = (0, 0 ,0)  #TVOC mg/m3, CH2O mg/m3, C02 ppm
+        self._flag = False
+        if not self._chip_id():
+            raise AttributeError("Cannot find a TOVC")
+
+    def _rreg(self):
+        '''Read data'''
+        if self._uart.any():
+            eec = 0
+            buf = self._uart.read(9)
+            for i in buf[:8]:
+                eec += i
+            if (eec & 0xFF) == buf[8] and buf[0] == 0x2C:
+                self._tvoc=((buf[2] << 8 | buf[3]) * 0.001, (buf[4] << 8 | buf[5]) * 0.001, buf[6] << 8 | buf[7] )
+                return True
+
+    def _chip_id(self):
+        for _ in range(5):
+            if self._rreg():
+                return True
+            time.sleep(1)
+        return False
+
+    def read(self):
+        self._rreg()
+        return  self._tvoc

boards/default_src/micropython_esp32s3/origin/build/lib/ai_camera.py

@@ -104,3 +104,7 @@ class AI:
             self._ai.delete(_id)  
         else:
             raise AttributeError('This model can only run face recognition')
+
+    def stop(self):
+        if self._ai is not None:
+            self._ai.stop()

boards/default_src/micropython_esp32s3/origin/build/lib/mixgo_sant.py

@@ -156,9 +156,11 @@ class LED:
 onboard_led = LED(onboard_bot.led_pwm)
 
 class Voice_Energy:
-	def read(self):
+	def read(self, samples=10):
-		_dat = onboard_asr._rreg(0x08, 3) #在语音识别里获取
+		values = []
-		return (_dat[0] | _dat[1] << 8) // 10
+		for _ in range(samples):
+			values.append(int.from_bytes(onboard_asr._rreg(0x08, 3)[:2], 'little')) #在语音识别里获取
+		return sorted(values)[samples // 2]
 
 onboard_sound = Voice_Energy()