commit 848a7fd58399bfd64c051bfaae3b29647858565f
Author: Julien Cabillot <gitlab@cabillot.eu>
Date:   Thu Mar 2 17:14:09 2017 +0100

    import

diff --git a/.gitignore b/.gitignore
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+mqttled.h
diff --git a/IMG_0214.jpg b/IMG_0214.jpg
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diff --git a/README.md b/README.md
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+Introduction
+============
+
+Simple blink qui toggle la led à chaque appel MQTT.  
+Pour mettre la LED du port D0 à ON :  
+```bash
+mosquitto_pub -d -u "<USER>" -P "<PASS>" -t "<TOPIC>" -m "ON"
+```  
+Pour la mettre à Off :  
+```bash
+mosquitto_pub -d -u "<USER>" -P "<PASS>" -t "<TOPIC>" -m "OFF"
+```  
+ 
+Un exemple de configuration pour home-assistant se trouve dans [ha_configuration.yml](ha\_configuration.yml).
+ 
+Matériel
+========
+  * 1x ESP8266 Lolin (Nodemcu v3)
+  * 1x Breadboard
+  * 1x Resistance 220Ω (jusqu'à 1kΩ)
+  * 1x LED
+
+Médias
+======
+
+![Fritzing BreadBoard](mqttled_bb.png)
+![IRL](IMG_0214.jpg)
diff --git a/ha_configuration.yml b/ha_configuration.yml
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+switch:
+  platform: "mqtt"
+  name: "Test LED"
+  command_topic: "homeassistant/switch1" #Topic sur lequel on publie l'état de l'interrupteur
+  payload_on: "ON" # A vous de choisir le message envoyé lorsque l'interrupteur est allumé 
+  payload_off: "OFF" # et éteint
+  optimistic: true # Mettez à true pour maintenir l'état
+  qos: 0
+  retain: true
+  value_template: '{{ value.x }}'
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diff --git a/mqttled.example.h b/mqttled.example.h
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+// LED
+#define LED_PIN D0
+
+// WIFI
+#define wifi_ssid     "XXX"
+#define wifi_password "XXX"
+
+// MQTT
+#define mqtt_server   "XXX"
+#define mqtt_port     1883
+#define mqtt_user     "XXX"
+#define mqtt_password "XXX"
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diff --git a/mqttled.ino b/mqttled.ino
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+// C'est moche mais c'est pour récuperer EVERY_N_SECONDS :)
+#include <FastLED.h>
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+
+// WIFI
+WiFiClient espClient;
+
+// MQTT
+char message_buff[100];
+PubSubClient client(espClient);
+
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("\nresetting");
+
+// WIFI
+  setupWifi();
+
+  // MQTT
+  client.setServer(mqtt_server, mqtt_port);
+  client.setCallback(callbackMQTT);
+  testConnectMQTT();
+  client.subscribe("homeassistant/switch1");
+
+  pinMode(LED_PIN, OUTPUT);
+}
+
+// WIFI
+void setupWifi() {
+  Serial.println();
+  Serial.print("Connexion a ");
+  Serial.print(wifi_ssid);
+  WiFi.begin(wifi_ssid, wifi_password);
+  
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  
+  Serial.println();
+  Serial.print("IP : ");
+  Serial.println(WiFi.localIP());
+}
+
+// MQTT
+void testConnectMQTT() {
+  while (!client.connected()) {
+    Serial.print("Connexion au serveur MQTT... ");
+    if (client.connect("ESP8266Client", mqtt_user, mqtt_password)) {
+      Serial.println("OK");
+    } else {
+      Serial.print("KO, erreur : ");
+      Serial.print(client.state());
+      Serial.println(", on attend 5 secondes avant de recommencer");
+      delay(5000);
+    }
+  }
+}
+
+void callbackMQTT(char* topic, byte* payload, unsigned int length) {
+  unsigned int i = 0;
+  Serial.print("Received [" + String(topic) + "] : ");
+
+  for(i = 0; i < length; i++) {
+    message_buff[i] = payload[i];
+  }
+  message_buff[i] = '\0';
+  String msgString = String(message_buff);
+  Serial.print(msgString);
+  
+  if (msgString == "ON") {
+    digitalWrite(LED_PIN, HIGH);
+  } else {
+    digitalWrite(LED_PIN, LOW);
+  }
+}
+
+void loop() {
+  testConnectMQTT();
+  client.loop();
+  
+  EVERY_N_SECONDS(180) {
+    Serial.print("MQTT Subscribe refresh");
+    client.subscribe("homeassistant/select1");
+    Serial.println(" done");
+  }
+}
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