ESP32 & Node-RED TCP Send Data

ESP32 & Node-RED TCP Send Data 

/*
 * This is the IP address of your PC
 * [Wins: use ipconfig command, Linux: use ifconfig command]
*/

const char* server = "192.168.43.121"; // IP address of the Node RED server

#include <WiFi.h>
//const char* ssid     = "<SSID>";
//const char* password = "<Passwort>";
const char* ssid     = "alex9ufo";
const char* password = "alex9981";

/*
 * This is the IP address of your PC
 * [Wins: use ipconfig command, Linux: use ifconfig command]
*/

const char* server = "192.168.43.121"; // IP address of the Node RED server
const int port = 8088;  // Port
const int analogpin=35; //ADC Pin
unsigned long previousMillis = 0; // Last update timestamp
const long interval = 1000;       // Send interval in ms
//===================================================
void setup() {
  Serial.begin(115200);
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected to IP address: ");
  Serial.println(WiFi.localIP());
  pinMode(analogpin , INPUT);
  int analogValue = analogRead(analogpin);
  Serial.println(analogValue);
}
//===================================================
void loop() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;
    Serial.print("Connecting to ");
    Serial.println(server);
    WiFiClient client; // For TCP connection
     if (!client.connect(server, port)) {
        Serial.println("Connection failed");
        return;
    }
    int analogValue = analogRead(analogpin);
    Serial.println(analogValue);
    client.print(analogValue); // Send data to the server
    client.stop();
  }
}
//===================================================
Json檔案

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