Question

我刚开始使用Arduino / ESP32 IoT并寻找合适的平台（本地和远程托管）。 Blynk可以正常工作，但仅限于手机。因此，我尝试了Thinger.io和ThingsBoard.io从Arduino / ESP8266 / ESP32系统上的远程传感器发送，存储和可视化数据。不幸的是，我的网络似乎阻止了MQTT协议（我无法访问路由器）。因此，我正在寻找使用HTTP协议的代码示例。

我尝试了以下示例中记录的示例 https://thingsboard.io/docs/samples/esp8266/temperature/ 使用ESP8266和DHT22传感器通过MQTT上传温度

// WiFi and connection to Thingsboard Server
#define WIFI_AP "WLAN-XX"
#define WIFI_PASSWORD "78s1A"
#define TOKEN "eWdqwftFL"
char thingsboardServer[] = "http://192.168.11.103";
WiFiClient wifiClient;
PubSubClient client(wifiClient);
int status = WL_IDLE_STATUS;
unsigned long lastSend;

void setup() {
  Serial.begin(57600);
  // Wifi and Thingsboard
  InitWiFi();
  client.setServer( thingsboardServer, 8883 );
  lastSend = 0;

}


void InitWiFi()
{
  Serial.println("Connecting to WiFi network ...");
  // attempt to connect to WiFi network

  WiFi.begin(WIFI_AP, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("Connected to WiFi network");
}


void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    status = WiFi.status();
    if ( status != WL_CONNECTED) {
      WiFi.begin(WIFI_AP, WIFI_PASSWORD);
      while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
      }
      Serial.println("Connected to AP");
    }
    Serial.print("Connecting to ThingsBoard node ...");
    // Attempt to connect (clientId, username, password)
    if ( client.connect("ESP8266 Device", TOKEN, NULL) ) {
      Serial.println( "[DONE]" );
    } else {
      Serial.print( "[FAILED] [ rc = " );
      Serial.print( client.state() );
      Serial.println( " : retrying in 5 seconds]" );
      // Wait 5 seconds before retrying
      delay( 5000 );
    }
  }
}

预期：连接到Thingsboard服务器。我尝试了其他端口（9090、1883、5683）串行控制台

Found BME280 sensor! Success.
Connecting to WiFi network ...
.....................Connected to WiFi network
Temp: 20.25°C       Humidity: 35.13% RH     Pressure: 99276.86Pa
Connecting to ThingsBoard node ...[FAILED] [ rc = -2 : retrying in 5 seconds]
Connecting to ThingsBoard node ...[FAILED] [ rc = -2 : retrying in 5 seconds]
Connecting to ThingsBoard node ...[FAILED] [ rc = -2 : retrying in 5 seconds]

使用ThingsBoard的HTTP协议的Arduino / ESP32示例

0 个答案: