Hi,
you can use a client example from the "WebSockets" library.
The app sends the data as a json object like {"tag":"value"}
I have modified an example, I can compile it but I don't have time to test it:
Code:
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>
#include <WebSocketsClient.h>
WiFiMulti WiFiMulti;
WebSocketsClient webSocket;
#define USE_SERIAL Serial1
void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED: {
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);
// send message to server when Connected
webSocket.sendTXT("Connected");
}
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);
// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
//hexdump(payload, length);
// send data to server
// webSocket.sendBIN(payload, length);
break;
case WStype_PING:
// pong will be send automatically
USE_SERIAL.printf("[WSc] get ping\n");
break;
case WStype_PONG:
// answer to a ping we send
USE_SERIAL.printf("[WSc] get pong\n");
break;
}
}
void setup() {
// USE_SERIAL.begin(921600);
USE_SERIAL.begin(115200);
//Serial.setDebugOutput(true);
USE_SERIAL.setDebugOutput(true);
USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();
for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}
WiFiMulti.addAP("SSID", "passpasspass");
//WiFi.disconnect();
while(WiFiMulti.run() != WL_CONNECTED) {
delay(100);
}
// server address, port and URL
webSocket.begin("192.168.0.123", 81, "/");
// event handler
webSocket.onEvent(webSocketEvent);
// use HTTP Basic Authorization this is optional remove if not needed
webSocket.setAuthorization("user", "Password");
// try ever 5000 again if connection has failed
webSocket.setReconnectInterval(5000);
// start heartbeat (optional)
// ping server every 15000 ms
// expect pong from server within 3000 ms
// consider connection disconnected if pong is not received 2 times
webSocket.enableHeartbeat(15000, 3000, 2);
}
void loop() {
webSocket.loop();
//if (something happened) sendValue("myTag","Hello Virtuino");
}
//=========================================
bool sendValue(const char* tag, String value){
String json = "{\"";
json+=tag;
json+="\":\"";
json+=value;
json+="\"}";
Serial.println("Send: "+json);
webSocket.sendTXT(json);
}
I think you have to replace the serial1 with the default serial if you want to see something in the terminal
