初始化提交

boards/default/micropython_nrf51822_microbit/build/lib/MP3.py

@@ -0,0 +1,72 @@
+from microbit import *
+
+class QJ00X_MP3:
+    def __init__(self, mp3_rx=pin2, mp3_tx=pin16, volume=0x16, mode=0x01):
+        uart.init(rx=mp3_rx, tx=mp3_tx, baudrate=9600)
+        self.set_eq(1)
+        self.set_vol(volume)
+        self.set_mode(mode)
+        self.pause()
+
+    def _send_cmd(self, length, cmd, data_high=None, data_low=None):
+        uart.write(b'\x7E')
+        uart.write(bytes([length]))
+        uart.write(bytes([cmd]))
+        if data_high != None:
+            uart.write(bytes([data_high]))
+        if data_low != None:
+            uart.write(bytes([data_low]))
+        uart.write(b'\xEF')
+        sleep(200)
+  
+    #下一曲
+    def next_track(self):
+        self._send_cmd(0x02, 0x03)
+  
+    #上一曲
+    def prev_track(self):
+        self._send_cmd(0x02, 0x04)
+  
+    #选择曲目
+    def sel_track(self, track_index):
+        self._send_cmd(0x03, track_index)
+  
+    #音量+
+    def inc_vol(self):
+        self._send_cmd(0x02, 0x05)
+  
+    #音量-
+    def dec_vol(self):
+        self._send_cmd(0x02, 0x06)
+  
+    #设置音量
+    def set_vol(self, volume):
+        self._send_cmd(0x03, 0x31, data_high=volume)
+  
+    #设置音效
+    def set_eq(self, equalizer):
+        self._send_cmd(0x03, 0x32, data_high=equalizer)
+  
+    #设置播放设备
+    def set_mode(self, mode):
+        self._send_cmd(0x03, 0x35, data_high=mode)
+
+    #播放
+    def play(self):
+        self._send_cmd(0x02, 0x01)
+  
+    #终止播放
+    def pause(self):
+        self._send_cmd(0x02, 0x02)
+  
+    #设置文件夹播放
+    def set_folder(self, folder_index, music_index):
+        self._send_cmd(0x04, 0x42, data_high=folder_index, data_low=music_index)
+    
+    #设置曲目播放
+    def playFileByIndexNumber(self, music_index):
+        self._send_cmd(0x04, 0x41, data_high=0x00, data_low=music_index)
+  
+    #设置循环
+    def set_loop(self, mode):
+        self._send_cmd(0x03, 0x33, data_high=mode)