让 ESP32 WiFi/蓝牙协同工作

Question

我正在创建一个涉及蓝牙和 WiFi 的应用程序。我首先将手机连接到蓝牙，并通过它传递 WiFi ssid 和密码。然后，在收到 ssid 和密码后，我尝试将其连接到 WiFi。我设法将 ssid 和密码存储到一个字符数组中。

从蓝牙发送数据后，ESP32 与 WiFi 建立连接后，蓝牙断开。我无法再次连接蓝牙，因为 WiFi 已连接，因为我通过 Bluetooth.read() 控制代码中的某些语句，所以我需要允许连接在 WiFi 和蓝牙之间共存。

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该项目由 SPIFFS（闪存保存）组成。首先从蓝牙传递WiFi ssid和密码，然后，我将接收到的蓝牙数据连接到一个字符数组中，以便稍后将其连接到互联网。

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我首先想到添加一个回调，在设备尝试连接时发出警报，但在文档中找不到任何能够执行此操作的代码。我有一个回调函数，可以告诉我设备何时连接和断开连接。\n

\n我搜索并找到了相关内容，Menuconfig但找不到它所在的位置。\n
\n这是我正在阅读的内容：https: //www.espressif.com/sites/default/files/documentation/ESP32_FAQs__EN.pdf

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5.3.2.\nHow do ESP32 Bluetooth and Wi-Fi coexist?\nIn the menuconfig menu, there is a special option called \xe2\x80\x9cSoftware controls WiFi/ \nBluetooth coexistence\xe2\x80\x9d, which is used to control the ESP32\'s Bluetooth and Wi-Fi \ncoexistence using software, thus balancing the coexistence requirement for controlling \nthe RF module by both the Wi-Fi and Bluetooth modules. Please note that if Option \n\xe2\x80\x9cSoftware controls WiFi/Bluetooth coexistence\xe2\x80\x9d is enabled, the BLE scan \ninterval shall not exceed 0x100 slots (about 160 ms).\n

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我找不到menuconfig位置。\n
\n我正在使用 ```BluetoothSerial.h`` 库\n
\n这是一段代码：

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// ------------------------------ Inicializa\xc3\xa7\xc3\xa3o do loop ------------------------------ //\nvoid loop() {\n  // Preparando String para enviar ao usuario\n  line_one_length = line_one.length();\n  line_two_length = line_two.length();\n  line_three_length = line_three.length();\n\n  char receive_line_one[line_one_length], receive_line_two[line_two_length], receive_line_three[line_three_length];\n  char receive_wifi_ssid[line_one_length], receive_wifi_pass[line_two_length];\n  \n  String deletar;\n  \n  file = SPIFFS.open("/wifi.txt");\n\n  // ------------------------------ Ve se o usuario digitou a palavra deletar ------------------------------ //\n  if (SerialBT.available()){\n    while (SerialBT.available()) {\n      insert_chars = SerialBT.read();\n      deletar = String(deletar + insert_chars);\n    }\n    deletar.trim();\n  }\n\n  // ------------------------------ Conex\xc3\xa3o ao WiFi ------------------------------ //\n  if (line_one != "" and wifi_state == 0 and receive_wifi_ssid != ""){\n    line_one.toCharArray(receive_wifi_ssid, line_one_length);\n    line_two.toCharArray(receive_wifi_pass, line_two_length);\n    delay(100);\n    WiFi.begin(receive_wifi_ssid, receive_wifi_pass);\n    Serial.println("Conectando ao WiFi...");\n    while (WiFi.status() != WL_CONNECTED)\n    {\n      Serial.print(".");\n      delay(1000);\n    }\n    Serial.println("\\nConectado ao WiFi");\n    wifi_state = 1;\n  }\n\n  Serial.print("Estado: ");\n  Serial.println(connection_state);\n\n  // ------------------------------ V\xc3\xaa se a conteudo dentro do FILE ------------------------------ //\n  if (file.size() > 0) {\n    if (deletar == "deletar"){\n      delete_file_info();\n      wifi_ssid = "";\n      wifi_password = "";\n      database_info = "";\n      line_one = "";\n      line_two = "";\n      line_three = "";\n      wifi_state = 0;\n      Serial.println("Arquivo deletado com sucesso");\n      return;\n    }\n    read_file_info();\n    all_lines();\n  }else{  \n    if (wifi_ssid == "" and connection_state == 0 and line_one == ""){\n      Serial.print("File size: ");\n      Serial.print(file.size());\n      Serial.println(", O valor dentro da string \xc3\xa9 nulo, nada ser\xc3\xa1 adicionado ao arquivo");\n      delay(1000);\n    }else if (connection_state == 1 and line_one == ""){\n      // Chamando a fun\xc3\xa7\xc3\xa3o para armazenar os dados do usuario dentro do FILE\n      bluetooth_while_loop();\n    }\n  }\n  \n  file.close();\n  delay(3000);\n\n

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我需要的是能够同时在 WiFi 和蓝牙之间建立连接。

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Answer 1

就menuconfig在这里。软件WiFi/BL共存的代码在这里。相关问题在这里。由于 WiFi 和蓝牙使用相同的天线，因此我不建议同时进行 WiFi/BL 共存。相反，您可以同时WiFi.setMode(WiFi_AP_STA)实例化SoftAP模式和STA模式。尝试使用下面的代码来实例化softAP和STA模式：

#include <WiFi.h>

void setup(){
  WiFi.setMode(WIFI_AP_STA);
  WiFi.begin("my-sta-ssid", "my-sta-pass");
  WiFi.softAP("my-ap-ssid", "my-ap-pass");
}

void loop(){}

您可以创建简单的WebServer“运行时配置”事情。