7dc0d8fd
 dling
Code pour écrire ...
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#include <WiFi.h>
#include <PubSubClient.h>
#include <WiFiClientSecure.h>
#include "identifiants.h"
#include "ModbusMaster.h"
ModbusMaster node;
//identifiants
const char* ssid = MY_SSID;
const char* password = MY_PASS;
//adresse du broker MQTT cloud et son port (8883 car protocole SSL)
const char* mqttServer = "f63f940361134f62957ef137f9d2e29f.s1.eu.hivemq.cloud";
const int mqttPort = 8883;
//identifiants du broker MQTT cloud pour s'authentifier
const char* mqttUser = MQTT_USER;
const char* mqttPassword = MQTT_PASSWORD;
unsigned long previousMillis = 0;
const long interval = 5000;
uint8_t result;
int messageMQTT;
uint8_t coil_value;
WiFiClientSecure wifiClient;
PubSubClient mqttClient(wifiClient);
String messageToPublish;
// Certificat CA du serveur MQTT obligatoire pour authentifier l'appareil qui se connecte
const char* caCert = \
"-----BEGIN CERTIFICATE-----\n" \
"MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw\n" \
"TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh\n" \
"cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4\n" \
"WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJu\n" \
"ZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBY\n" \
"MTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygc\n" \
"h77ct984kIxuPOZXoHj3dcKi/vVqbvYATyjb3miGbESTtrFj/RQSa78f0uoxmyF+\n" \
"0TM8ukj13Xnfs7j/EvEhmkvBioZxaUpmZmyPfjxwv60pIgbz5MDmgK7iS4+3mX6U\n" \
"A5/TR5d8mUgjU+g4rk8Kb4Mu0UlXjIB0ttov0DiNewNwIRt18jA8+o+u3dpjq+sW\n" \
"T8KOEUt+zwvo/7V3LvSye0rgTBIlDHCNAymg4VMk7BPZ7hm/ELNKjD+Jo2FR3qyH\n" \
"B5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x+UC\n" \
"B5iPNgiV5+I3lg02dZ77DnKxHZu8A/lJBdiB3QW0KtZB6awBdpUKD9jf1b0SHzUv\n" \
"KBds0pjBqAlkd25HN7rOrFleaJ1/ctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWn\n" \
"OlFuhjuefXKnEgV4We0+UXgVCwOPjdAvBbI+e0ocS3MFEvzG6uBQE3xDk3SzynTn\n" \
"jh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbw\n" \
"qHyGO0aoSCqI3Haadr8faqU9GY/rOPNk3sgrDQoo//fb4hVC1CLQJ13hef4Y53CI\n" \
"rU7m2Ys6xt0nUW7/vGT1M0NPAgMBAAGjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNV\n" \
"HRMBAf8EBTADAQH/MB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkq\n" \
"hkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu+ILlaS/V9lZL\n" \
"ubhzEFnTIZd+50xx+7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe+GnY+EgPbk6ZGQ\n" \
"3BebYhtF8GaV0nxvwuo77x/Py9auJ/GpsMiu/X1+mvoiBOv/2X/qkSsisRcOj/KK\n" \
"NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5\n" \
"ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur\n" \
"TkXWStAmzOVyyghqpZXjFaH3pO3JLF+l+/+sKAIuvtd7u+Nxe5AW0wdeRlN8NwdC\n" \
"jNPElpzVmbUq4JUagEiuTDkHzsxHpFKVK7q4+63SM1N95R1NbdWhscdCb+ZAJzVc\n" \
"oyi3B43njTOQ5yOf+1CceWxG1bQVs5ZufpsMljq4Ui0/1lvh+wjChP4kqKOJ2qxq\n" \
"4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA\n" \
"mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d\n" \
"emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=\n" \
"-----END CERTIFICATE-----\n";
void setup() {
Serial.begin(115200); //port série activé
WiFi.begin(ssid, password); //connexion au WiFi
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
//connexion au broker MQTT
mqttClient.setServer(mqttServer, mqttPort);
mqttClient.setCallback(callback);
// Chargement du certificat CA du serveur MQTT
wifiClient.setCACert(caCert);
while (!mqttClient.connected()) {
Serial.println("Connecting to MQTT server...");
if (mqttClient.connect("ESP32Client", mqttUser, mqttPassword)) {
Serial.println("Connected to MQTT server");
mqttClient.subscribe("topic/hello");
} else {
Serial.print("Failed to connect to MQTT server, rc=");
Serial.print(mqttClient.state());
Serial.println(" Retrying in 5 seconds...");
delay(5000);
}
}
Serial.print("\r\n*****************PRET!*******************");
Serial2.begin(9600, SERIAL_8N1); //communication modbus à 9600 bauds
node.begin(1, Serial2); //ID node 1
}
void loop() {
mqttClient.loop();
if (!mqttClient.connected()) {
reconnect();
}
if (Serial.available()){
Serial.println();
messageToPublish = Serial.readString();
mqttClient.publish("topic/hello",messageToPublish.c_str());
}
}
void reconnect() {
while (!mqttClient.connected()) {
Serial.println("Connecting to MQTT server...");
if (mqttClient.connect("ESP32Client", mqttUser, mqttPassword)) {
Serial.println("Connected to MQTT server");
} else {
Serial.print("Failed to connect to MQTT server, rc=");
Serial.print(mqttClient.state());
Serial.println(" Retrying in 5 seconds...");
delay(5000);
}
}
}
void callback(char* topic, byte* payload, unsigned int length) {
// Fonction de rappel pour la réception des messages MQTT
Serial.print("Message arrived on topic: ");
Serial.print(topic);
Serial.print(". Message: ");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
}
char messageBuffer[length + 1];
memcpy(messageBuffer, payload, length);
messageBuffer[length] = '\0'; // Ajouter le caractère de fin de chaîne
//messageMQTT = 0; //Clear messsage
messageMQTT = atoi((char*)messageBuffer); //convertir le
Serial.print("message MQTT:");
Serial.println(messageMQTT);
if(messageMQTT < 32767){
static uint16_t register_values[10] = {0b0000000100100011, 0b0001001010000011, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001, 0x0001,0x0001,0x0001};
for (int i = 0; i < 10; i++) { //
node.setTransmitBuffer(i, register_values[i]);
}
result = node.writeMultipleRegisters(0,40);
if (result == node.ku8MBSuccess)
{
Serial.printf("\r\nSucces");
}
else
{
Serial.printf("\r\nFail");
}
}
else
Serial.println("number is too big");
}
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