備忘錄_20160105(定位) 修改 回首頁
程式　2023-04-25　17:16:38　1682414198　100
ESP32 S3 + DFPlayer Mini [web music player]
ESP32 S3 + DFPlayer Mini [web music player]
from machine import Pin
import utime
import network
import socket
from dfplayermini import Player

def doBlink():
    
    global oLed
    
    for i in range(3):
        oLed.value(1)
        utime.sleep(0.1)
        oLed.value(0)
        utime.sleep(0.1)

def getCommand(strRequest):
    
    iIdxL=strRequest.find('[cmd=')
    iIdxR=-1
    if iIdxL!=-1:
        iIdxR=strRequest[iIdxL:].find(']')
    if iIdxL==-1 or iIdxR==-1:
        return ['', ''] # 沒有符合格式的指令
    
    strCommandString=strRequest[iIdxL+5:iIdxL+iIdxR]
    if len(strCommandString)<1:
        return ['', ''] # 格式正確，但無內容
    
    iIdxComma=strCommandString.find(',')
    if iIdxComma==-1:
        strCmdStr=strCommandString
        strCmdVal=''
    else:
        strCmdStr=strCommandString[:iIdxComma]
        strCmdVal=strCommandString[iIdxComma+1:]
    
    return [strCmdStr.strip(), strCmdVal.strip()]

def webSvr_init():
    
    global oWLan
    
    oWLan=network.WLAN(network.STA_IF)
    oWLan.ifconfig(('192.168.100.99', '255.255.255.0', '192.168.100.1', '8.8.8.8'))
    oWLan.active(True)
    
    try:
        if oWLan.isconnected():
            oWLan.disconnect()
    except Exception as oErr:
        print('斷開無線網路發生意外！')
        print(str(oErr))
    
    try:
        oWLan.connect('ssid','password')
    except Exception as oErr:
        print('連接無線網路發生意外！')
        print(str(oErr))
    
    for i in range(20):
        utime.sleep(1)
        if oWLan.isconnected():
            print('wifi connected')
            break
        print('wifi not connected')
    
    print(oWLan.ifconfig())
    utime.sleep(0.1)

def webSvr_listen():
    
    global oWLan, oMusic
    
    oSocket=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    oSocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
    oSocket.setblocking(True)
    oSocket.bind((oWLan.ifconfig()[0], 80))
    oSocket.listen(10) # 可以有十條連線
    
    booContinue=True
    while booContinue:
        
        oConn, oAddr=oSocket.accept()
        utime.sleep(0.01)
        
        oRequest=oConn.recv(1024) # buffer 1024 bytes
        strRequest=str(oRequest)
        
        [strCmdStr, strCmdVal]=getCommand(strRequest)
        print(strCmdStr, strCmdVal)
        
        doBlink()
        
        # http://192.168.100.99/[cmd=goodbye]
        # http://192.168.100.99/[cmd=play,1]
        # ......
        
        if strCmdStr=='goodbye':
            print('goodbye')
            oMusic.stop()
            booContinue=False
        elif strCmdStr=='play':
            print('play',strCmdVal)
            oMusic.play(int(strCmdVal))
        elif strCmdStr=='stop':
            print('stop')
            oMusic.stop()
        elif strCmdStr=='next':
            print('next')
            oMusic.play('next')
        elif strCmdStr=='prev':
            print('prev')
            oMusic.play('prev')
        elif strCmdStr=='volume':
            print('volume',strCmdVal)
            oMusic.volume(int(strCmdVal))
        
        strHtml='<html><head><title>ESP32 S3</title></head><body>ver=0.6<hr>'+strRequest+'<hr>'+strCmdStr+'<hr>'+strCmdVal+'</body></html>'
        oConn.write('HTTP/1.1 200 OK\n')
        oConn.write('Content-Type: text/html\n')
        oConn.write('Connection: close\n\n')
        oConn.write(strHtml)
        oConn.close()
        
        if booContinue==False:
            break
        
    oSocket.close()

oMusic=Player(pin_TX=10, pin_RX=9)
oLed=Pin(2, Pin.OUT)
oWLan=False
webSvr_init()
webSvr_listen()
print('Really goodbye!')