我已編程到我的ESP8266並訂閱了一個話題以繼續收聽消息。這是將消息注入IBM Iot節點的圖形視圖。消息未從IBM Bluemix發佈到ESP8266
這是我的觀點注入
這是我的IBM物聯網節點的設置的設置。
這裏是我的日誌在串行監視器,它是連接和訂閱命令通道
到目前爲止好,當我試圖注入消息給我的IBM Iot節點,那麼它不會發布消息,因爲它沒有到達串行監視器,也沒有登錄調試視圖。在這裏你可以看到
這裏是源代碼:
#include <ESP8266WiFi.h>
#include <PubSubClient.h> // https://github.com/knolleary/pubsubclient/releases/tag/v2.3
const char* ssid = "shiv";
const char* password = "[email protected]";
#define ORG "2kafk4"
#define DEVICE_TYPE "ESP8266"
#define DEVICE_ID "5CCF7FEED6F0"
#define TOKEN "[email protected]*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");
}
}
我試圖檢查使用cf
命令Cloud Foundry的日誌,這是https://pastebin.com/dfMaS1Gd
誰能暗示我什麼,我我做錯了嗎?提前致謝。
@valerielampkin你有什麼想法嗎? –
你對IoTin節點有什麼要求?我認爲默認情況下,期望JSON,而不是字符串。 – ValerieLampkin
我遇到過一個教程,他們拿了一個字符串的例子。無論如何,我將在這裏注入JSON https://i.stack.imgur.com/hFbIa.png,像{「name」:「williams」},並將IOT節點的格式更改爲json。我希望這是你的意思 –