117 lines
2.5 KiB
C++
117 lines
2.5 KiB
C++
#include <Arduino.h>
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#include <ESP8266WiFi.h>
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#include <PubSubClient.h>
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#include <NTPClient.h>
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#include <WiFiUdp.h>
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#include "certificate.h"
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#include "secrets.h"
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#define CERT mqtt_broker_cert
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#define MSG_BUFFER_SIZE (50)
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const char* ssid = VITRINE_SSID;
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const char* password = VITRINE_WIFI_PASS;
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const char* mqtt_server = "mqtt.klank.school"; // eg. your-demo.cedalo.cloud or 192.168.1.11
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const uint16_t mqtt_server_port = 7000; // or 8883 most common for tls transport
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const char* mqttUser = MQTT_ARDUINO_USERNAME;
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const char* mqttPassword = MQTT_ARDUINO_PASS;
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bool isOn = false;
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#define MAIN_CHANNEL "main"
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#define RELAY_1 1
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//--------------------------------------
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// globals
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//--------------------------------------
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#ifdef MQTT_TLS
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WiFiClientSecure wifiClient;
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#else
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WiFiClient wifiClient;
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#endif
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WiFiUDP ntpUDP;
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NTPClient timeClient(ntpUDP);
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PubSubClient mqttClient(wifiClient);
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void setup_wifi() {
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delay(10);
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(ssid);
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WiFi.begin(ssid, password);
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Serial.println("start while");
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while (WiFi.status() != WL_CONNECTED) {
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delay(50);
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Serial.print(".");
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}
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Serial.println("i am here 1");
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timeClient.begin();
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Serial.println("WiFi connected");
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}
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void callback(char* topic, byte* payload, unsigned int length) {
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Serial.print("Message arrived on topic: '");
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Serial.print(topic);
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Serial.print("' with payload: ");
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for (unsigned int i = 0; i < length; i++) {
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Serial.print((char)payload[i]);
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}
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if (isOn) {
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digitalWrite(RELAY_1, HIGH);
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isOn = false;
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} else {
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digitalWrite(RELAY_1, LOW);
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isOn = true;
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}
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Serial.println();
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}
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void connect() {
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while (!mqttClient.connected()) {
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Serial.print("Attempting MQTT connection...");
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String clientId = "ESP8266Client-";
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clientId += String(random(0xffff), HEX);
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if (mqttClient.connect(clientId.c_str(), mqttUser, mqttPassword)) {
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Serial.println("connected");
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mqttClient.subscribe(MAIN_CHANNEL);
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mqttClient.publish(MAIN_CHANNEL, ("Whaddup can i stay? "));
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} else {
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Serial.print("failed, rc=");
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Serial.print(mqttClient.state());
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Serial.println(" will try again in 5 seconds");
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delay(5000);
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}
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}
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}
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void setup() {
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Serial.begin(9600);
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Serial.println("run setup");
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setup_wifi();
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Serial.println("finish setup_wifi");
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pinMode(RELAY_1, OUTPUT);
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mqttClient.setServer(mqtt_server, mqtt_server_port);
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mqttClient.setCallback(callback);
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}
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void loop() {
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if (!mqttClient.connected()) {
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connect();
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}
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mqttClient.loop();
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timeClient.update();
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}
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