micropython MP3播放器

sanxiawu

micropython MP3播放器 [复制链接]

1,网上找到个MP3模块

这货支持tf卡,插入tf卡,放入几首MP3
2,使用esp32 把16,17 与rx和TX相连接入电源
再把喇叭就如spk1和spk2,这样完成硬件连接
3,查看手册编写程序

from machine import UART,Pin
import re,time
u = UART(2, 115200)
u.init( baudrate=115200, bits=8, parity=None, stop=1, tx=17, rx=16, rts=-1, cts=-1, timeout=0, timeout_char=1)
buf=bytearray(8)
bufcmd=bytearray(10)
bufcmd[0]=0x7E
bufcmd[9]=0xEF
def sendcmd():
global bufcmd
for i in range(0,8):
bufcmd[i+1]=buf[i]
u.write(bufcmd)
def checksum(len):
global buf
xorsum=0
for i in range(0,len):
xorsum=xorsum+buf[i]
xorsum=0-xorsum
buf[6]=xorsum>>8
buf[7]=xorsum & 0x00ff
def uartcmd(CMD,feedback,dat):
global buf
buf[0] = 0xff
buf[1] = 0x06
buf[2] = CMD
buf[3] = feedback
buf[4] = dat >> 8
buf[5] = dat
checksum(6)
sendcmd()
def forward():
uartcmd(03 , 0 , 5)
def back():
uartcmd(03 , 0 , 6)
def left():
uartcmd(03 , 0 , 7)
def right():
uartcmd(03 , 0 , 8)
def brake():
uartcmd(03 , 0 , 9)
def stop():
uartcmd(03 , 0 , 10)
def pause():
uartcmd(0x0e , 0 , 0)
def readcmd():
hexcmd=[]
for i in u.read():
d=hex(i).replace('0x','')
d=d.upper()
hexcmd.append(d)
print(hexcmd)