ESP32 and Node-RED

ESP32 and Node-RED - https://erik-bartmann.de/

ESP32

#include <WiFi.h> #define MSG 50 //Maximum length of the message //const char* ssid = "<SSID>"; //const char* password = "<Passwort>"; const char* ssid = "alex9ufo"; const char* password = "alex9981"; int pinArray[] = {32, 33, 25, 26}; // IO-Pins WiFiServer server(8088); // Server listens on Port 8088 //=============================================== void setup() { for(int i=0; i<4; i++) pinMode(pinArray[i], OUTPUT); 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()); server.begin(); // Start server } //=============================================== void loop() { String msg = ""; //message // Wait for a new client WiFiClient client = server.available(); uint8_t data[MSG]; if (client) { Serial.println("New client"); // Check if client connected while (client.connected()) { if (client.available()) { int len = client.read(data, MSG); if (len < MSG) data[len] = '\0'; else data[MSG] = '\0'; Serial.print("Clients message: "); msg = (char *)data; Serial.println(msg); evalMessage(msg); } } } } //=============================================== void evalMessage(String msg) { int pos = msg.indexOf(':'); int pin = msg.substring(0, pos).toInt(); int status = msg.substring(pos + 1).toInt(); Serial.print("pin"); Serial.print(pin); Serial.print(" out-->"); Serial.println(status); digitalWrite(pin, status); } //===============================================

json檔案

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