pio-nodeMCU-MQTT

main.cpp

#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <Cloud4RPi.h>

const String deviceToken = "__YOUR__DEVICE_TOKEN__";
char wifiSSID[] = "__SSID__";
char wifiPassword[] = "__PASSWORD__";

void ensureWiFiConnection();

Cloud4RPi c4r(deviceToken);
WiFiClient wifiClient;

void setup() {
    Serial.begin(9600);
    ensureWiFiConnection();

    c4r.begin(wifiClient); // Cloud4RPi initialization
    if (c4r.ensureConnection()) {
        c4r.printLogo();
    }
}

void loop() {
    ensureWiFiConnection();
    if (c4r.ensureConnection(3)) {  // number of attempts
        c4r.loop();
        Serial.print(".");
        delay(1000);
    }
}

void ensureWiFiConnection() {
    if (WiFi.status() != WL_CONNECTED) {
        WiFi.begin(wifiSSID, wifiPassword);
        while (WiFi.status() != WL_CONNECTED) {
            Serial.println("Connecting to Wi-Fi...");
            delay(2000);
        }
        Serial.print("Connected! ");
        Serial.print("IP: ");
        Serial.println(WiFi.localIP());
    }
}

platform.ini

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; http://docs.platformio.org/page/projectconf.html

[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino

lib_deps =
    cloud4rpi-esp-arduino

build_flags=
; Required for PubSub library
    -D MQTT_MAX_PACKET_SIZE=1024
    -D MQTT_MAX_TRANSFER_SIZE=128
; Enables the verbose output to Serial
    -D CLOUD4RPI_DEBUG=1