Python code for AtomS3U, working to play first track in root directory<\/p>\n\n\n\n
import os, sys, io\nimport M5\nfrom M5 import *\nimport time\nfrom hardware import UART\n\nuart1 = None\n\nstr2 = None\nname = None\nnumber = None\nok = None\ncommand = None\nmsg = None\npm = None\nbytes2 = None\nreply = None\n\n# Describe this function...\ndef WriteMP3Player(str2):\n global name, number, ok, command, msg, pm, bytes2, reply, uart1\n ok = False\n print(str2)\n uart1.write((str2.encode()))\n return True\n\n# Describe this function...\ndef getReply():\n global str2, name, number, ok, command, msg, pm, bytes2, reply, uart1\n time.sleep(1)\n msg = bytearray(100)\n while uart1.any():\n bytes2 = uart1.read()\n msg = msg + bytes2\n time.sleep_ms(100)\n return (msg.decode()).strip()\n\n# Describe this function...\ndef prettyPrintReply(str2):\n global name, number, ok, command, msg, pm, bytes2, reply, uart1\n print(str((len(str2))))\n print(str2)\n if str2 == 'ERR:1':\n print('error 1 received')\n\n# Describe this function...\ndef playByName(name):\n global str2, number, ok, command, msg, pm, bytes2, reply, uart1\n command = 'AT+SPLAY=sd0,'\n command = command + name\n ok = WriteMP3Player(command)\n reply = getReply()\n\n# Describe this function...\ndef playByNumber(number):\n global str2, name, ok, command, msg, pm, bytes2, reply, uart1\n command = 'AT+PLAY=sd0,'\n command = command + (str(number))\n ok = WriteMP3Player(command)\n reply = getReply()\n\n\ndef setup():\n global uart1, ok, command, msg, str2, pm, bytes2, name, reply, number\n\n M5.begin()\n uart1 = UART(1, baudrate=115200, bits=8, parity=None, stop=1, tx=2, rx=1)\n pm = 0\n msg = ''\n\n\ndef loop():\n global uart1, ok, command, msg, str2, pm, bytes2, name, reply, number\n M5.update()\n if pm == 0:\n ok = WriteMP3Player('AT+BAUD?')\n reply = getReply()\n print(reply)\n pm = pm + 1\n if pm == 1:\n ok = WriteMP3Player('AT+GVER?')\n reply = getReply()\n print(reply)\n pm = pm + 1\n if pm == 2:\n ok = WriteMP3Player('AT+GCFGVER?')\n reply = getReply()\n print(reply)\n prettyPrintReply(reply)\n pm = pm + 1\n if pm == 3:\n playByNumber(3)\n reply = getReply()\n print(reply)\n prettyPrintReply(reply)\n pm = pm + 1\n if pm == 4:\n ok = WriteMP3Player('AT+REPEATMODE=4')\n reply = getReply()\n print(reply)\n prettyPrintReply(reply)\n pm = pm + 1\n if pm == 5:\n ok = WriteMP3Player('AT+VOL=3')\n reply = getReply()\n print(reply)\n prettyPrintReply(reply)\n pm = pm + 1\n\n\nif __name__ == '__main__':\n try:\n setup()\n while True:\n loop()\n except (Exception, KeyboardInterrupt) as e:\n try:\n from utility import print_error_msg\n print_error_msg(e)\n except ImportError:\n print(\"please update to latest firmware\")\n<\/code><\/pre>\n\n\n\n
\n\n\n\nArduino test sketch<\/h2>\n\n\n\n