erikpena

// pin is 2.
const int   multiButton = 2;

void setup() {
  // Configure the pin mode as an input.
  pinMode(multiButton, INPUT);
  
  // Attach an interrupt to the pin, assign the onChange function as a handler and trigger on changes (LOW or HIGH).
  attachInterrupt(multiButton, onChange, CHANGE);
  

teos0009

//nodeMCU v1.0 (black) with Arduino IDE
//stream temperature data DS18B20 with 1wire on ESP8266 ESP12-E (nodeMCU v1.0)
//shin-ajaran.blogspot.com
//nodemcu pinout https://github.com/esp8266/Arduino/issues/584
#include <ESP8266WiFi.h>
#include <OneWire.h>
#include <DallasTemperature.h>

//Def
#define myPeriodic 15 //in sec | Thingspeak pub is 15sec

mtl010957

#include <ESP8266WiFi.h>
#include <Wire.h>
#include <PubSubClient.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>

#define wifi_ssid "YOUR_WIFI_SSID"
#define wifi_password "YOUR_WIFI_PASSWORD"

#define mqtt_server "YOUR_MQTT_SERVER_HOST"

balloob

// Get ESP8266 going with Arduino IDE
// - https://github.com/esp8266/Arduino#installing-with-boards-manager
// Required libraries (sketch -> include library -> manage libraries)
// - PubSubClient by Nick ‘O Leary
// - DHT sensor library by Adafruit

#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <DHT.h>

jindrichsirucek

struct WiFiCredential{
  const char *ssid;
  const char *pass;
};

bool wifiConnect()
{
  if(isWifiConnected())
    return true;
  WiFi.mode(WIFI_STA);

ItKindaWorks

/*
dustSensorDemo.ino
Copyright (c) 2018 ItKindaWorks All right reserved.
github.com/ItKindaWorks

dustSensorDemo.ino is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.