Alex Warsun
Published © GPL3+

Smart Living Room (Home Theatre)

I built myself a voice controlled home theatre, with background light, screen and projector control. With an ESP8266 and an Arduino Nano.

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Smart Living Room (Home Theatre)

Things used in this project

Hardware components

ESP8266 ESP-01
Espressif ESP8266 ESP-01
Used for the communication between the amazon echo und the relay board
×1
Arduino Nano R3
Arduino Nano R3
used for the projector and the screen control
×1
Relay Shield for Particle Photon I²C 8-Channel SPDT 10-Amp
ControlEverything.com Relay Shield for Particle Photon I²C 8-Channel SPDT 10-Amp
this is not the exact hardware i used, but it's a 8-Channel Relay
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Smart living room schematic

I had to write on it, because there was no 8-Channel relay board.. sorry for that. Also its a different ESP8266 board. I'm using one with micro-USB socket.

Code

ESP8266 voice control

Arduino
for controlling the esp8266 with the amazon echo and the relays
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include "fauxmoESP.h"
#include "credentials.h"

#define SERIAL_BAUDRATE                 115200
#define LIGHT                             D0
#define LAMP                              D1
#define START_ARD                         D2


fauxmoESP fauxmo;

// -----------------------------------------------------------------------------
// Wifi
// -----------------------------------------------------------------------------

void wifiSetup() {

    // Set WIFI module to STA mode
    WiFi.mode(WIFI_STA);

    // Connect
    Serial.printf("[WIFI] Connecting to %s ", WIFI_SSID);
    WiFi.begin(WIFI_SSID, WIFI_PASS);

    // Wait
    while (WiFi.status() != WL_CONNECTED) {
        Serial.print(".");
        delay(100);
    }
    Serial.println();

    // Connected!
    Serial.printf("[WIFI] STATION Mode, SSID: %s, IP address: %s\n", WiFi.SSID().c_str(), WiFi.localIP().toString().c_str());

}

void setup() {

    
    Serial.begin(SERIAL_BAUDRATE);
    Serial.println();
    Serial.println();

    // Wifi
    wifiSetup();

    // Setting up
    pinMode(LIGHT, OUTPUT);
    pinMode(LAMP, OUTPUT);
    pinMode(START_ARD, OUTPUT);
    
    digitalWrite(LIGHT, HIGH);
    digitalWrite(LAMP, HIGH);
    digitalWrite(START_ARD, HIGH);

    fauxmo.enable(true);

    // Add virtual devices
    fauxmo.addDevice("Licht");
    fauxmo.addDevice("Lampe"); 
    fauxmo.addDevice("Beamer");
    
   // "Control section"
    fauxmo.onSetState([](unsigned char device_id, const char * device_name, bool state) {
        Serial.printf("[MAIN] Gerät #%d (%s) ist: %s\n", device_id, device_name, state ? "AN" : "AUS");

        if( (strcmp(device_name, "Licht") == 0)){
          if(state){
            digitalWrite(LIGHT, LOW);
            } else{
            digitalWrite(LIGHT, HIGH);
              }
          }//end of if

        if( (strcmp(device_name, "Lampe") == 0)){
          if(state){
            digitalWrite(LAMP, LOW);
            } else{
              digitalWrite(LAMP, HIGH);
              }//end of if-else
          }//end of if 

        if( (strcmp(device_name, "Beamer") == 0)){
          if(state){
            digitalWrite(START_ARD, LOW);
            } else{
              digitalWrite(START_ARD, HIGH);
              }//end of if-else
          }//end of if
          
    });

    // Callback to retrieve the current state
    fauxmo.onGetState([](unsigned char device_id, const char * device_name) {
        return digitalRead(LIGHT) == LOW;
        return digitalRead(LIGHT) == HIGH;
        return digitalRead(LAMP) == LOW;
        return digitalRead(LAMP) == HIGH;
        return digitalRead(START_ARD) == LOW;
        return digitalRead(START_ARD) == HIGH;
    });

}

void loop() {
    fauxmo.handle();

    static unsigned long last = millis();
    if (millis() - last > 5000) {
        last = millis();
        Serial.printf("[MAIN] Free heap: %d bytes\n", ESP.getFreeHeap());
    }

}

Arduino Nano projector control

Arduino
this code is for the Nano, which controls the projector and the screen.
#include <IRremote.h>

IRsend irsend;  // PIN 3

#define SCREEN_DOWN         6  //IN4
#define SCREEN_UP           7  //IN5

int aktiviert = 0;    // activation variable

void setup()
{
  Serial.begin(9600);
 // Setting up 
  pinMode(2, INPUT);
  pinMode(SCREEN_DOWN, OUTPUT);
  pinMode(SCREEN_UP, OUTPUT);

  // Turning the Relay switches off in the beginning 
   digitalWrite(SCREEN_DOWN, HIGH);
   digitalWrite(SCREEN_UP, HIGH);

}//end of setup()

void loop() {  
 if(digitalRead(2) == HIGH){
       if(aktiviert == 0){        //Screen down, projector on
         digitalWrite(SCREEN_DOWN, LOW);
         delay(1000);
         digitalWrite(SCREEN_DOWN, HIGH);
         delay(30000); //Wait 45 sec.
         irsend.sendNEC(0x61D6F807, 32);
         delay(15000);
         digitalWrite(SCREEN_UP, LOW);
         delay(1000);
         digitalWrite(SCREEN_UP, HIGH);
         aktiviert = 1;
       }//end of if
    }else {
      if(aktiviert == 1){         //Screen up, projector off               
         irsend.sendNEC(0x61D6F807, 32);
         delay(1000);
         irsend.sendNEC(0x61D6F807, 32);
         delay(1000);
         irsend.sendNEC(0x61D6F807, 32);
         digitalWrite(SCREEN_UP, LOW);
         delay(46000);
         digitalWrite(SCREEN_UP, HIGH);
         delay(1000);
         digitalWrite(SCREEN_DOWN, LOW);
         delay(1000);
         digitalWrite(SCREEN_DOWN, HIGH);
        aktiviert = 0;
        }//end of if       
      }//end of if-else
 }//end of loop()

Credits

Alex Warsun

Alex Warsun

1 project • 5 followers

Comments

Related channels and tags
  • Arduino
  • ControlEverything.com
  • Espressif
  • Home Automation