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/*
ESP32-WROOM-DA
V20241105a
*/
#include <SPI.h>
#include <PubSubClient.h>
#include <ArduinoJson.h> // https://github.com/bblanchon/ArduinoJson
#include <WiFi.h>
#include "config.h"
#include <TFT_eSPI.h> // by Bodmer ver 2.5.34
#include <NTPClient.h> // by F.Weinberg ver 3.2.1
#include <HTTPClient.h> // by A.McEwen ver 2.2.0
#include <Preferences.h>
Preferences prefs;
#define CYD_LED_BLUE 17
#define CYD_LED_RED 4
#define CYD_LED_GREEN 16
void WIFISetUp(void);
void mqttCallback(char *topic, byte *payload, unsigned int length);
///////veuillez entrer vos données sensibles dans l'onglet Config.h
char ssid[] = WLAN_SSID; // le SSID (nom) de votre réseau
char password[] = WLAN_PASSWD; // votre mot de passe réseau
const char* metar = "https://aviationweather.gov/api/data/metar?ids=LFLL&format=json"; // LFLL = Code OACI de Lyon
WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);
int wifiTimeOutCounter = 0;
#define TIMEOFFSET 3600 * 2 // pas d'heure d'été mais décalage de 2h par rapport à l'UTC
// definition for the screen
#define MAX_Y 240
#define MAX_X 320
TFT_eSPI tft = TFT_eSPI();
TFT_eSprite spr = TFT_eSprite(&tft); // Déclarer l'objet Sprite "spr" avec un pointeur sur l'objet "tft".
uint16_t palette[16] = { TFT_GREENYELLOW, TFT_NAVY, TFT_ORANGE, TFT_DARKCYAN, TFT_MAROON,
TFT_PURPLE, TFT_PINK, TFT_LIGHTGREY, TFT_YELLOW, TFT_BLUE,
TFT_GREEN, TFT_CYAN, TFT_RED, TFT_MAGENTA, TFT_BLUE, TFT_WHITE };
WiFiClient wifiClient;
PubSubClient mqttClient(wifiClient);
// update parameter for the weather data
unsigned long previousMillis = 0;
#define INTERVAL 60000 * 30 // 5 min
// init parameter for iniversum simulation
int const n = 5, m = 200;
float const r = 0.1;
float x = 0, v = 0, t = 0;
const char mqttBroker[] = "mqtt3.thingspeak.com";
int mqttPort = 1883;
const char mqttTopic[] = "channels/2499901/subscribe";
const char mqttClientID[] = MQTT_CLIENT;
const char mqttUsername[] = MQTT_USER;
const char mqttPassword[] = MQTT_PASSWORD;
byte omm = 99, oss = 99;
byte xcolon = 0, xsecs = 0;
unsigned int colour = 0;
// set global variables for the weather informations
int temperature = 0; // °C
int dew_point = 0; // °C
int wind_speed_knots = 0;
int pressure = 0; // hPa
int relative_humidity = 0; // %
int wind_speed_kmh = 0;
int data_age_min = 0;
unsigned long epochTime = 0;
unsigned long obsTime = 0;
const char* clef = "temperaturePrecedente";
const float valeurDefaut = -100.0;
float temperaturePrecedente = -1000;
float piscine = 0;
int TempExt = 0;
int HumExt = 0;
int Bat = 0;
char Miseajour[20];
//*********************************************
// SETUP
//*********************************************
void setup() {
Serial.begin(115200);
while (!Serial) delay(10);
Serial.println("Booting...");
pinMode(CYD_LED_RED, OUTPUT);
pinMode(CYD_LED_GREEN, OUTPUT);
pinMode(CYD_LED_BLUE, OUTPUT);
eteindre() ;
prefs.begin("Memoire", false);
// Vérifier si la clé existe
if (prefs.getBytesLength(clef) == 0) {
Serial.println("La clef n'existe pas. Création avec la valeur par défaut.");
prefs.putFloat(clef, valeurDefaut);
}
temperaturePrecedente = prefs.getFloat(clef, valeurDefaut);
Serial.print("temperature Precedente: "); Serial.println(temperaturePrecedente);
// print debugg infos an serial
uint32_t chipId = 0;
for (int i = 0; i < 17; i = i + 8) chipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i;
Serial.printf("ESP32 Chip model = %s Rev %d\n", ESP.getChipModel(), ESP.getChipRevision());
Serial.printf("This chip has %d cores\n", ESP.getChipCores());
Serial.print("Chip ID: ");
Serial.println(chipId);
Serial.print("Connecting to ");
Serial.print(ssid);
Serial.print(" ");
// connect to router
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
wifiTimeOutCounter++;
if (wifiTimeOutCounter >= 60) ESP.restart();
}
Serial.println("");
Serial.println("WiFi connected.");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
uint8_t mac[6];
WiFi.macAddress(mac);
Serial.print("MAC address: ");
for (int i = 0; i < 6; i++) {
Serial.print(mac[i], HEX);
if (i < 5) Serial.print(":");
}
Serial.println("");
// Convert MAC address to unique identifier (UID)
uint64_t uid = ((uint64_t)mac[0] << 40) | ((uint64_t)mac[1] << 32) | ((uint64_t)mac[2] << 24) | ((uint64_t)mac[3] << 16) | ((uint64_t)mac[4] << 8) | ((uint64_t)mac[5]);
Serial.print("MAC unique identifier: ");
Serial.println(uid);
// init time system
timeClient.begin();
timeClient.setTimeOffset(TIMEOFFSET);
// Init ttf
tft.init();
spr.setColorDepth(4);
spr.createSprite(MAX_X, MAX_Y);
tft.setRotation(1);
// load first data to start with
timeClient.update();
weatherData();
mqttClient.setServer(mqttBroker, mqttPort);
mqttClient.setCallback(mqttCallback);
mqttClient.setBufferSize(1024); // <====
while (!mqttClient.connected()) {
Serial.print("Tentative de connexion au MQTT broker: ");
Serial.println(mqttBroker);
if (mqttClient.connect(mqttClientID, mqttUsername, mqttPassword)) {
Serial.println("Vous êtes connecté au MQTT broker!");
if (mqttClient.subscribe(mqttTopic)) {
Serial.print("S'abonner au topic ");
Serial.print(mqttTopic);
Serial.println(": succès");
Serial.println("En attente de messages ...");
} else {
Serial.println("L'abonnement au Topic a échoué");
}
} else {
Serial.print("Failed, state=");
Serial.print(mqttClient.state());
Serial.println(" Nouvel essai en 5s...");
delay(5000);
}
}
}
//*********************************************
// LOOP
//*********************************************
void loop() {
spr.fillSprite(0); // init sprite
// dessiner une simulation d'univers dans un sprite vide
for (int i = 0; i <= n; i++)
for (int j = 0; j <= m; j++) {
float u = sin(i + v) + sin(r * i + x);
v = cos(i + v) + cos(r * i + x);
x = u + t;
int px = u * MAX_X / 4 + MAX_X / 2;
int py = v * MAX_Y / 4 + MAX_Y / 2;
uint16_t color = (i * 255) % 16;
for (int dx = 0; dx <= 1; ++dx)
for (int dy = 0; dy <= 1; ++dy)
spr.drawPixel(px + dx, py + dy, color);
}
t += 0.01;
// update weather information
unsigned long currentMillis = millis();
if (currentMillis - previousMillis > INTERVAL) {
previousMillis = currentMillis;
weatherData();
}
// Print everything
spr.setTextColor(3);
timeClient.update();
String strtmp = timeClient.getFormattedTime() + " " + getFormattedDate();
spr.drawLine(0, 25, 319, 25,TFT_LIGHTGREY);
spr.drawLine(0, 195, 319, 195,TFT_LIGHTGREY);
if (timeClient.isTimeSet()) {
spr.drawString(timeClient.getFormattedTime(), 5, 0, 4);
spr.drawString(getFormattedDate(), 185, 0, 4);
spr.setTextColor(8); // 3 =
spr.drawString("C",280,60,4);
spr.drawString(String(piscine,2), 35, 70, 8);
spr.setTextColor(3);
String outputString ="";
outputString = "T Ext.: "+String(TempExt) + "c " + "H Ext.: "+String(HumExt) + "% " +"Batterie : "+ String(Bat) + "%";
spr.drawString(outputString, 0, 200, 2);
spr.setTextColor(6);
outputString ="";
String value = Miseajour;
outputString = "Maj le : "+ value;
spr.drawString(outputString, 0, 220, 2);
spr.pushSprite(0, 0);
}
mqttClient.loop();
}
//****se connecter au serveur météorologique et obtenir des données ****************
void weatherData() {
if (WiFi.status() == WL_CONNECTED) {
Serial.println();
Serial.println("-----------------------");
HTTPClient http;
http.begin(metar);
Serial.print("Envoi d'une requête HTTP à: ");
Serial.println(metar);
int httpCode = http.GET(); // Envoyer une requête HTTP GET
if (httpCode > 0) { // Cvérifier si la demande a abouti
DynamicJsonDocument metardoc(2048); // Créer un document JSON (ajuster la taille en conséquence)
String payload = http.getString(); // Récupérer la réponse du site web
Serial.print("Réponse reçue: ");
Serial.println(payload); // Sortie des données METAR vers la console série
DeserializationError error = deserializeJson(metardoc, payload); // Analyse des données JSON
if (!error) {
// commencer à extraire les données météorologiques et à mettre à jour les variables globales
temperature =metardoc[0]["temp"];
dew_point = metardoc[0]["dewp"];
wind_speed_knots =metardoc[0]["wspd"];
pressure = metardoc[0]["altim"];
obsTime = metardoc[0]["obsTime"];
relative_humidity = 100 * expf(17.625f * dew_point / (243.04f + dew_point)) / expf(17.625f * temperature / (243.04f + temperature));
wind_speed_kmh = wind_speed_knots * 1.852f;
epochTime = timeClient.getEpochTime() - TIMEOFFSET;
data_age_min = (epochTime - obsTime) / 60;
// montrent les données les plus importantes sur les séries
/*
Serial.print("Temperature: ");
Serial.print(temperature, 0);
Serial.println();
Serial.print("Relative Humidity: ");
Serial.print(relative_humidity, 0);
Serial.println("%");
Serial.print("Wind Speed: ");
Serial.print(wind_speed_kmh, 0);
Serial.println("km/h");
Serial.print("Pressure: ");
Serial.print(pressure, 0);
Serial.println("hPa");
Serial.print("Data age: ");
Serial.print((epochTime - obsTime) / 60);
Serial.println("min");
*/
} else Serial.println("Erreur d'analyse des données JSON");
} else Serial.println("Erreur dans la récupération des données METAR");
http.end();
}
Serial.println("-----------------------");
}
//********this is missing in the library *******************************************************
String getFormattedDate() {
#define LEAP_YEAR(Y) ((Y > 0) && !(Y % 4) && ((Y % 100) || !(Y % 400)))
unsigned long rawTime = timeClient.getEpochTime() / 86400L;
unsigned long days = 0, year = 1970;
uint8_t month;
static const uint8_t monthDays[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
while ((days += (LEAP_YEAR(year) ? 366 : 365)) <= rawTime) year++;
rawTime -= days - (LEAP_YEAR(year) ? 366 : 365);
for (month = 0; month < 12; month++) {
uint8_t monthLength;
if (month == 1) monthLength = LEAP_YEAR(year) ? 29 : 28;
else monthLength = monthDays[month];
if (rawTime < monthLength) break;
rawTime -= monthLength;
}
String monthStr = ++month < 10 ? "0" + String(month) : String(month);
String dayStr = ++rawTime < 10 ? "0" + String(rawTime) : String(rawTime);
return String(dayStr) + "-" + monthStr + "-" + year;
}
//***************************************************************
void mqttCallback(char *topic, byte *payload, unsigned int length) {
Serial.println();
Serial.println("-----------------------");
Serial.print("Message arrivé du topic: ");
Serial.println(topic);
Serial.print("Message:");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
JsonDocument doc;
deserializeJson(doc, (unsigned char*)payload);
Serial.println();
piscine = doc["field4"];
Serial.print("T° piscine = ");
Serial.println(piscine);
float temperatureActuelle = piscine ;
if (temperatureActuelle > temperaturePrecedente ) {
// on chauffe
eteindre();
digitalWrite(CYD_LED_RED, LOW);
Serial.println("PLUS CHAUD");
} else if (temperatureActuelle == temperaturePrecedente ) {
// on est stable
eteindre();
digitalWrite(CYD_LED_GREEN, LOW);
Serial.println("IDENTIQUE");
} else {
// on est plus froid
eteindre();
digitalWrite(CYD_LED_BLUE, LOW);
Serial.println("PLUS FROID");
}
temperaturePrecedente = temperatureActuelle;
// stocker temperatureActuelle dans les préférences pour la prochaine fois si reboot
prefs.putFloat(clef, temperatureActuelle);
TempExt = doc["field1"];
Serial.print("T° Exterieur = ");
Serial.println(TempExt,0);
HumExt = doc["field2"];
Serial.print("Humidité Exterieure = ");
Serial.println(HumExt,0);
Bat = doc["field3"];
Serial.print("Batterie = ");
Serial.println(Bat,0);
const char* (maj) = doc["created_at"];
//const char* (maj) = doc["updated_at"];
Serial.print("Mise à jour le ");
Serial.println(maj);
//strcpy(Miseajour, maj);
strncpy(Miseajour, maj, sizeof(Miseajour));
Miseajour[sizeof(Miseajour)-1]=0;
Serial.println("-----------------------");
}
void eteindre() {
digitalWrite(CYD_LED_RED, HIGH);
digitalWrite(CYD_LED_GREEN, HIGH);
digitalWrite(CYD_LED_BLUE, HIGH);
} |
MQTT et Données Horaires
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