Raspberry pi and DF player.

[codingyoutub]

In arduino, the dfplayer worked well and Raspberry connected to HC05 Bluetooth and it worked very well.

However, Raspberry and FDplayer are not allowed. Can you look at the chords?

`import serial import time

MP3_PLAYBACK_SOURCE = 0x09 MP3_VOLUME = 0x06 MP3_PLAYBACK_SOURCE_TF = 1

global send default_buf = [0x7E,0xFF, 0x06, 0x00, 0x00, 0x00, 0x00,0x00,0x00, 0xEF] mp3_cmd_buf = [0x7E,0xFF, 0x06, 0x00, 0x00, 0x00, 0x00,0x00,0x00, 0xEF]

global ser ser = serial.Serial( port='/dev/ttyAMA1', baudrate=9600, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize= serial.EIGHTBITS, timeout=1 )

global loop loop = False

def dfplayer_init(): mp3_send_cmd(MP3_PLAYBACK_SOURCE, 0, MP3_PLAYBACK_SOURCE_TF) time.sleep(0.01) mp3_send_cmd(MP3_VOLUME, 0, 30) time.sleep(0.01)

def Volume(v): mp3_send_cmd(MP3_VOLUME, 0, v)

def Play(): global loop loop = True mp3_send_cmd(0x12, 0, 1)

def NextPlay(): global loop loop = True mp3_send_cmd(0x01, 0, 0)

def Stop(): global loop if loop: loop = False mp3_send_cmd(0x16, 0, 1)

def mp3_send_cmd(cmd, high_arg, low_arg): mp3_cmd_buf[3] = cmd mp3_cmd_buf[5] = high_arg mp3_cmd_buf[6] = low_arg checksum = MP3_checksum() mp3_cmd_buf[7] = ((checksum >> 8) & 0x00FF) print(mp3_cmd_buf[7]) mp3_cmd_buf[8] = (checksum & 0x00FF) print(mp3_cmd_buf[8]) for i in range(10): USART_Transmit(mp3_cmd_buf[i]) mp3_cmd_buf[i] = default_buf[i]

def MP3_checksum(): sum =0 for i in range(1,7): sum += mp3_cmd_buf[i] return -sum

def USART_Transmit(data): global ser print(chr(data)) ser.write(bytes(data))

dfplayer_init() NextPlay()`