Messages as JSON's with ArduinoJson lib

.cproject

 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/WebSockets/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Hash/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ESP8266WiFi/src}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.cpp.sketch.input.1770649762" name="CPP source files" superClass="io.sloeber.compiler.cpp.sketch.input"/>
 							</tool>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/WebSockets/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Hash/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ESP8266WiFi/src}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.c.sketch.input.1705705" name="C Source Files" superClass="io.sloeber.compiler.c.sketch.input"/>
 							</tool>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/WebSockets/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Hash/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ESP8266WiFi/src}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.S.sketch.input.1190005390" name="Assembly source files" superClass="io.sloeber.compiler.S.sketch.input"/>
 							</tool>

.project

 			<type>2</type>
 			<locationURI>ECLIPSE_HOME/arduinoPlugin/packages/esp8266/hardware/esp8266/3.1.2/variants/d1</locationURI>
 		</link>
+		<link>
+			<name>libraries/ArduinoJson</name>
+			<type>2</type>
+			<locationURI>ECLIPSE_HOME/arduinoPlugin/libraries/ArduinoJson/7.0.2</locationURI>
+		</link>
 		<link>
 			<name>libraries/DNSServer</name>
 			<type>2</type>

Commands.h

+/*
+ * Commands.h
+ *
+ *  Created on: 09.06.2026
+ *      Author: FSmilari
+ */
+
+#ifndef COMMANDS_H_
+#define COMMANDS_H_
+
+enum Commands {
+	CMD_UNKNOWN = -1,
+	CMD_CHG_MODE,
+	CMD_SWITCH_LED,
+	CMD_CHG_COLOR,
+	CMD_CHG_BRIGHTNESS,
+	CMD_RESET_WIFI_CFG
+};
+
+const char* cmdToString(Commands cmd) {
+	switch (cmd) {
+		case CMD_CHG_MODE:
+			return "CHG_MODE";
+		case CMD_SWITCH_LED:
+			return "SWITCH_LED";
+		case CMD_CHG_COLOR:
+			return "CHG_COLOR";
+		case CMD_CHG_BRIGHTNESS:
+			return "CHG_BRIGHTNESS";
+		case CMD_RESET_WIFI_CFG:
+			return "RESET_WIFI_CFG";
+		default:
+			return "UNKNOWN";
+	}
+}
+
+Commands strToCommand(const char *cmd) {
+	if (cmd == nullptr) {
+		return CMD_UNKNOWN;
+	}
+
+	if (strcmp(cmd, "CHG_MODE") == 0)
+		return CMD_CHG_MODE;
+	if (strcmp(cmd, "SWITCH_LED") == 0)
+		return CMD_SWITCH_LED;
+	if (strcmp(cmd, "CHG_COLOR") == 0)
+		return CMD_CHG_COLOR;
+	if (strcmp(cmd, "CHG_BRIGHTNESS") == 0)
+		return CMD_CHG_BRIGHTNESS;
+	if (strcmp(cmd, "RESET_WIFI_CFG") == 0)
+		return CMD_RESET_WIFI_CFG;
+
+	return CMD_UNKNOWN;
+}
+
+#endif /* COMMANDS_H_ */

HtmlPages.h

 	
 				function ledOn() {
 				  if (ws && ws.readyState === 1) {
-					ws.send("/ledOn");
+					ws.send("{\"cmd\":\"SWITCH_LED\",\"val\":\"on\"}");
 				  }
 				}
 	
 				function ledOff() {
 				  if (ws && ws.readyState === 1) {
-					ws.send("/ledOff");
+					ws.send("{\"cmd\":\"SWITCH_LED\",\"val\":\"off\"}");
 				  }
 				}
 
 				function resetWifiCfg() {
 				  if (ws && ws.readyState === 1) {
-					ws.send("/resetWifiCfg");
+					ws.send("{\"cmd\":\"RESET_WIFI_CFG\",\"val\":\"\"}");
 				  }
 				}
 	

LEDLamp.ino

 #include <EEPROM.h>
 #include <DNSServer.h>
 #include "States.h"
+#include "Commands.h"
 #include "HtmlPages.h"
+#include <ArduinoJson.h>
 
 AppState state = STATE_BOOT;
 unsigned long connectStart = 0;
 			Serial.print("WS empfangen: ");
 			Serial.println(msg);
 
-			if (msg == "/ledOn") {
-				digitalWrite(ledPin, LOW);
-				delay(10);
-				if (digitalRead(ledPin) == LOW) {
-					webSocket.sendTXT(num, "LED ON");
+			JsonDocument doc;
+			deserializeJson(doc, msg);
+			const char *cmd = doc["cmd"];
+
+			if (strToCommand(cmd) == CMD_SWITCH_LED) {
+
+				const char *value = doc["val"];
+				if (strcmp(value, "on") == 0) {
+					digitalWrite(ledPin, LOW);
+					delay(10);
+					if (digitalRead(ledPin) == LOW) {
+						webSocket.sendTXT(num, "LED ON");
+					}
+				} else if (strcmp(value, "off") == 0) {
+					digitalWrite(ledPin, HIGH);
+					delay(10);
+					if (digitalRead(ledPin) == HIGH) {
+						webSocket.sendTXT(num, "LED OFF");
+					}
 				}
-			} else if (msg == "/ledOff") {
-				digitalWrite(ledPin, HIGH);
-				delay(10);
-				if (digitalRead(ledPin) == HIGH) {
-					webSocket.sendTXT(num, "LED OFF");
-				}
-			} else if (msg == "/resetWifiCfg") {
+
+			} else if (strToCommand(cmd) == CMD_RESET_WIFI_CFG) {
+
 				resetWifiConfiguration(num);
 			} else {
-				String s = "ACK: " + msg;
+
+				String s = "ACK UNKNOWN: " + msg;
 				webSocket.sendTXT(num, s);
 			}
 

sloeber.ino.cpp

 //This is a automatic generated file
 //Please do not modify this file
 //If you touch this file your change will be overwritten during the next build
-//This file has been generated on 2026-06-09 21:27:43
+//This file has been generated on 2026-06-09 22:24:35
 
 #include "Arduino.h"
 #include "Arduino.h"
 #include <EEPROM.h>
 #include <DNSServer.h>
 #include "States.h"
+#include "Commands.h"
 #include "HtmlPages.h"
+#include <ArduinoJson.h>
 
 void saveConfig() ;
 void loadConfig() ;