Controle d'une LED au travers de Home Assistant
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3 years ago
3 years ago
  1. #include "mqttled.h"
  2. // C'est moche mais c'est pour récuperer EVERY_N_SECONDS :)
  3. #include <FastLED.h>
  4. #include <ESP8266WiFi.h>
  5. #include <PubSubClient.h>
  6. // WIFI
  7. WiFiClient espClient;
  8. // MQTT
  9. char message_buff[100];
  10. PubSubClient client(espClient);
  11. void setup() {
  12. Serial.begin(SERIAL_SPEED);
  13. Serial.println("\nresetting");
  14. // WIFI
  15. setupWifi();
  16. // MQTT
  17. client.setServer(mqtt_server, mqtt_port);
  18. client.setCallback(callbackMQTT);
  19. testConnectMQTT();
  20. client.subscribe("homeassistant/switch1");
  21. pinMode(LED_PIN, OUTPUT);
  22. }
  23. // WIFI
  24. void setupWifi() {
  25. Serial.println();
  26. Serial.print("Connexion a ");
  27. Serial.print(wifi_ssid);
  28. WiFi.begin(wifi_ssid, wifi_password);
  29. while (WiFi.status() != WL_CONNECTED) {
  30. delay(500);
  31. Serial.print(".");
  32. }
  33. Serial.println();
  34. Serial.print("IP : ");
  35. Serial.println(WiFi.localIP());
  36. }
  37. // MQTT
  38. void testConnectMQTT() {
  39. while (!client.connected()) {
  40. Serial.print("Connexion au serveur MQTT... ");
  41. if (client.connect("ESP8266Client", mqtt_user, mqtt_password)) {
  42. Serial.println("OK");
  43. } else {
  44. Serial.print("KO, erreur : ");
  45. Serial.print(client.state());
  46. Serial.println(", on attend 5 secondes avant de recommencer");
  47. delay(5000);
  48. }
  49. }
  50. }
  51. void callbackMQTT(char* topic, byte* payload, unsigned int length) {
  52. unsigned int i = 0;
  53. Serial.print("Received [" + String(topic) + "] : ");
  54. for(i = 0; i < length; i++) {
  55. message_buff[i] = payload[i];
  56. }
  57. message_buff[i] = '\0';
  58. String msgString = String(message_buff);
  59. Serial.print(msgString);
  60. if (msgString == "ON") {
  61. digitalWrite(LED_PIN, HIGH);
  62. } else {
  63. digitalWrite(LED_PIN, LOW);
  64. }
  65. }
  66. void loop() {
  67. testConnectMQTT();
  68. client.loop();
  69. EVERY_N_SECONDS(180) {
  70. Serial.print("MQTT Subscribe refresh");
  71. client.subscribe("homeassistant/select1");
  72. Serial.println(" done");
  73. }
  74. }