How can detect server disconnect from client ESP8266WebServe
Posted: Sun Dec 08, 2019 1:35 amIn this code, I want to know when the connection is disconnected for write LOW on the pin
digitalWrite(motor, LOW);
When the connection is disconnected, How can I do it?
digitalWrite(motor, LOW);
When the connection is disconnected, How can I do it?
Code: Select all
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <ArduinoJson.h>
#define motor 4 //D2
DynamicJsonBuffer jsonBuffer;
const char *ssid = "ssid";
const char *password = "password";
int sensorValue0 = 0;
String sensor_values;
ESP8266WebServer server(80);
void handleSentVar() {
if (server.hasArg("sensor_reading"))
{
sensor_values = server.arg("sensor_reading");
Serial.print("**********************sensorValue:");
Serial.println(sensor_values);
}
JsonObject& root = jsonBuffer.parseObject(sensor_values);
sensorValue0 = root["sensor0_reading"].as<int>();
Serial.print("sensorValue0:");
Serial.println(sensorValue0);
toggle_motors();
server.send(200, "text/html", "Data received");
}
void setup() {
Serial.begin(9600);
WiFi.softAP(ssid, password);
IPAddress myIP = WiFi.softAPIP();
pinMode(motor, OUTPUT);
//toggle_motors(); //turn off all leds as all the sensor values are zero
server.on("/data/", HTTP_GET, handleSentVar); // when the server receives a request with /data/ in the string then run the handleSentVar function
server.begin();
}
void loop() {
server.handleClient();
delay(1000);
}
void toggle_motors()
{
if (sensorValue0 == 0){ digitalWrite(motor, LOW);
Serial.println("++++++++++++++++off+++++++++++++");}
if (sensorValue0 == 1){ digitalWrite(motor, HIGH);
Serial.println("------------on-------------");}
}