Below is my code for nodemcu…please suggest me the configuration for openhab…like home.items,home.sitemap and home.rule.
// Neopixel
#include <Adafruit_NeoPixel.h>
// ESP 8266
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
// MQTT Subscribes
const char* SubscribeTo = “esp/1/out”;
const char* SubscribeFrom = “esp/1/in”;
// WiFi & MQTT Server
const char* ssid = “CS10-1006”;
const char* password = “redhat@rhce”;
const char* mqtt_server = “192.168.0.106”;
const int mqttport = 1883; // use 8883 for SSL
const char *mqttuser = “openhabian”;
const char *mqttpassword = “redhat”;
WiFiClient espClient;
PubSubClient pubClient(espClient);
long lastMsg = 0;
char msg[50];
String message("#000000");
String lastMessage("#000000");
// Neopixel Config
#define NeoPIN D3
#define NUM_LEDS 30
int brightness = 150;
Adafruit_NeoPixel strip = Adafruit_NeoPixel(NUM_LEDS, NeoPIN, NEO_RGB + NEO_KHZ800);
void setup() {
Serial.begin ( 115200 );
// ##############
// NeoPixel start
Serial.println();
strip.setBrightness(brightness);
strip.begin();
strip.show();
delay(50);
// WiFi
setup_wifi();
// MQTT
Serial.print(“Connecting to MQTT…”);
// connecting to the mqtt server
pubClient.setServer(mqtt_server, 1883);
pubClient.setCallback(callback);
Serial.println(“done!”);
}
void callback(char* topic, byte* payload, unsigned int length) {
Serial.print(“Message arrived [”);
Serial.print(topic);
Serial.print("] “);
String color(”#");
for (int i = 0; i < length; i++) {
Serial.print((char)payload[i]);
if(i > 0){
color = color + String((char)payload[i]);
}
}
Serial.println();
// finding payload
if((char)payload[0] == ‘#’){
// setting color
setNeoColor(color);
}
}
void setup_wifi() {
delay(10);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(100);
Serial.print(".");
}
Serial.println("");
Serial.println(“WiFi connected”);
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void loop() {
if (!pubClient.connected()) {
delay(100);
reconnect();
}
pubClient.loop();
long now = millis();
if (now - lastMsg > 60000 || lastMessage.indexOf(message) < 0 ) {
lastMsg = now;
Serial.print("Publish message: ");
Serial.println(message);
char msg[7];
message.toCharArray(msg, message.length());
Serial.print("Publishing...");
pubClient.publish(SubscribeTo, msg);
Serial.println("Done!!!");
lastMessage = message;
}
delay(10);
}
void setNeoColor(String value){
Serial.println(“Setting Neopixel…” + value);
message = value;
int number = (int) strtol( &value[1], NULL, 16);
int r = number >> 16;
int g = number >> 8 & 0xFF;
int b = number & 0xFF;
Serial.print("RGB: ");
Serial.print(r, DEC);
Serial.print(" ");
Serial.print(g, DEC);
Serial.print(" ");
Serial.print(b, DEC);
Serial.println(" ");
for(int i=0; i < NUM_LEDS; i++) {
strip.setPixelColor(i, strip.Color( g, r, b ) );
}
strip.show();
Serial.println("on.");
}
void reconnect() {
// Loop until we’re reconnected
while (!pubClient.connected()) {
// Attempt to connect
if (pubClient.connect(“ESP8266Client”)) {
Serial.println(“connected”);
// Once connected, publish an announcement…
pubClient.publish(SubscribeTo, “Restart”);
// … and resubscribe
pubClient.subscribe(SubscribeFrom);
} else {
Serial.print(“failed, rc=”);
Serial.print(pubClient.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}