消息未从 IBM Bluemix 发布到 ESP8266

Question

我已经编程到我的 ESP8266 并订阅了一个主题以保持收听消息。这是我向 IBM Iot 节点注入消息的图形视图。

这是我的注入视图设置

这是我对 IBM Iot 节点的设置。

这是我在 Serial Monitor 上的日志，它已连接并订阅了 cmd 频道

到目前为止一切顺利，当我尝试向我的 IBM Iot 节点注入消息时，它没有发布消息，因为它没有到达串行监视器，也没有在调试视图上登录。在这里你可以看到

这里是源代码：

#include <ESP8266WiFi.h>
#include <PubSubClient.h> // https://github.com/knolleary/pubsubclient/releases/tag/v2.3

const char* ssid = "shiv";
const char* password = "manmohan@12345";

#define ORG "2kafk4"
#define DEVICE_TYPE "ESP8266"
#define DEVICE_ID "5CCF7FEED6F0"
#define TOKEN "opKF7v3@8jRM*mGkb_"

char server[] = ORG ".messaging.internetofthings.ibmcloud.com";
char topic[] = "iot-2/cmd/test/fmt/String";
char authMethod[] = "use-token-auth";
char token[] = TOKEN;
char clientId[] = "d:" ORG ":" DEVICE_TYPE ":" DEVICE_ID;

WiFiClient wifiClient;

void callback(char* topic, byte* payload, unsigned int payloadLength) {
  Serial.print("callback invoked for topic: "); Serial.println(topic);

  for (int i = 0; i < payloadLength; i++) {
    Serial.print((char)payload[i]);
  }
}
PubSubClient client(server, 1883, callback, wifiClient);

void setup() {
  Serial.begin(115200);
  Serial.println();
  wifiConnect();
  mqttConnect();
}

void loop() {
  if (!client.loop()) {
    mqttConnect();
  }
}

void wifiConnect() {
  Serial.print("Connecting to "); Serial.print(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.print("nWiFi connected, IP address: "); Serial.println(WiFi.localIP());
}

void mqttConnect() {
  if (!client.connected()) {
    Serial.print("Reconnecting MQTT client to "); Serial.println(server);
    while (!client.connect(clientId, authMethod, token)) {
      Serial.print(".");
      delay(500);
    }
    initManagedDevice();
    Serial.println();
  }
}

void initManagedDevice() {
  if (client.subscribe(topic)) {
    Serial.println("subscribe to cmd OK");
  } else {
    Serial.println("subscribe to cmd FAILED");
  }
}

我尝试使用 cf 命令检查 cloud foundry 日志，这里是 https://pastebin.com/dfMaS1Gd

任何人都可以提示我做错了什么吗？提前致谢。

Answer 1

确认在您的节点配置中正确指定了设备类型。目前屏幕截图显示 0.16.2 似乎与您注册的设备类型和代码中指定的不匹配。

消息未从 IBM Bluemix 发布到 ESP8266

Message is not publishing to ESP8266 from IBM Bluemix

arduino

node-red

esp8266

watson-iot

ibm-cloud