#include <WiFi.h>
#include <PubSubClient.h>
#include "EButton.h"
EButton buttons[] = {
{2, true, 1}, {4, true, 2}, {5, true, 3}};
static char tombol[10] = {0};
//int BUTTON_PIN = D2; //button is connected to GPIO pin D1
// Update these with values suitable for your network.
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "broker.mqttdashboard.com";
//const char* mqtt_server = "iot.eclipse.org";
WiFiClient espClient;
PubSubClient client(espClient);
long lastMsg = 0;
char msg[50];
void setup_wifi() {
delay(100);
// We start by connecting to a WiFi network
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
randomSeed(micros());
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void callback(char* topic, byte* payload, unsigned int length)
{
} //end callback
void reconnect() {
// Loop until we're reconnected
while (!client.connected())
{
Serial.print("Attempting MQTT connection...");
// Create a random client ID
String clientId = "ESP8266Client-";
clientId += String(random(0xffff), HEX);
// Attempt to connect
//if you MQTT broker has clientID,username and password
//please change following line to if (client.connect(clientId,userName,passWord))
if (client.connect(clientId.c_str()))
{
Serial.println("connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
} //end reconnect()
void setup() {
Serial.begin(115200);
setup_wifi();
client.setServer(mqtt_server, 1883);
client.setCallback(callback);
for (EButton& btn: buttons) {
btn.attachSingleClick(sharedClick);
}
}
void sharedClick(EButton& btn) {
Serial.println(btn.getID());
int tombol = btn.getID();
// char temp[3] = tombol2;
// client.publish("Emergency/ns1", temp);
if (tombol == 1){
char message[] = "1";
client.publish("Emergency/ns1", message);
Serial.println (message);
}
if (tombol == 2){
char message[] = "2";
client.publish("Emergency/ns1", message);
Serial.println (message);
}
}
void loop() {
if (!client.connected()) {
reconnect();
}
for (EButton& btn: buttons) {
btn.tick();
}
}
/* client.loop();
long now = millis();
int status;
//每隔0.5s发送一次数据
if (now - lastMsg > 500) {
lastMsg = now;
status=digitalRead(BUTTON_PIN);
String msg="Button status: ";
if(status==HIGH )
{
msg= msg+ "Pressed";
char message[58];
msg.toCharArray(message,58);
Serial.println(message);
//publish sensor data to MQTT broker
client.publish("Emergency/ns1", message);
}
else
{
msg= msg+ " Not Press";
char message[58];
msg.toCharArray(message,58);
Serial.println(message);
//publish sensor data to MQTT broker
client.publish("Emergency/ns1", message);
}
}
}
*/