433mhz and WiFi Connected Amazon Alexa Hub

This device can be incorporated in a home to connect up to 3 available Amazon Alexa's on the same WiFi network.

Dec 24, 2017

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amazon

alexa

innovative

Components and supplies

Buzzer

Jumper wires (generic)

Arduino UNO

Resistor 330 ohm

433mhz Transmitter and Receiver

Resistor 10k ohm

LED (generic)

Breadboard (generic)

Apps and platforms

Arduino IDE

Project description

Code

Transmitter & Receiver Hub Code

c_cpp

Make sure to check that the pins match and then upload and press the button on your breadboard! it will scan for and connect multiple devices to the central Arduino. Now, when you use Alexa, one/two of the pair or trio will be accessing the cloud while the other just relays the information, reducing time.

1#include "pitches.h"
2#define GND 8
3#define VCC 9
4#define DATA  10
5#define GND_R 5
6#define VCC_R 2
7#define DATA_R 4
8#define button 12
9#define  buzzer 6
10#define yellowled 11
11
12int buttonState;
13boolean recordedSignal[]  = {1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,  1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0,  1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,  1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0,  0, 1, 0, 0, 1, 1};
14int melody[] = {
15  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_A3,  NOTE_B3, NOTE_D3, NOTE_D4,
16  NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_E5,  NOTE_DS5, NOTE_E5, NOTE_FS5, NOTE_B5, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_AS5, NOTE_B5,  0,
17  NOTE_FS5, 0, NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_CS6, NOTE_AS5,  NOTE_B5, NOTE_CS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_CS6,
18 NOTE_E4, NOTE_F4, NOTE_G4,  NOTE_G4, NOTE_G4, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4,
19  NOTE_D4,  NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_GS4, NOTE_DS4, NOTE_FS4,  NOTE_CS4, NOTE_DS4, NOTE_B3, NOTE_CS4, NOTE_B3,
20  NOTE_DS4, NOTE_FS4, NOTE_GS4,  NOTE_DS4, NOTE_FS4, NOTE_CS4, NOTE_F4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_CS4,  NOTE_B3, NOTE_CS4,
21  NOTE_D4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_CS4,  NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_B3, NOTE_CS4,
22  NOTE_FS4, NOTE_GS4,  NOTE_D4, NOTE_DS4, NOTE_FS2, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4  };
23
24// note durations: 4 = quarter note, 8 = eighth note, etc.:
25int noteDurations[]  = {
26  32, 32, 32, 32, 32, 32, 32, 32,
27  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
28  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
29  32,32,32,32,32,32,32,32,32,32,32,
30  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
31  32,32,32,32,32,32,32,32,32,32,32,32,32,32,
32  32,32,32,32,32,32,32,32,32,32,32,32,
33  32,32,32,32,32,32,32,32,32,32,32
34};
35  int randomNote; 
36
37void setup() {
38  // put your setup code here, to run  once:
39
40  pinMode(GND, OUTPUT);
41  pinMode(VCC, OUTPUT);
42  pinMode(DATA,  INPUT);
43  pinMode(13, OUTPUT);
44 // pinMode(buzzer, OUTPUT);
45  digitalWrite(GND,  LOW);
46  digitalWrite(VCC, HIGH);
47  pinMode(GND_R, OUTPUT);
48  pinMode(VCC_R,  OUTPUT);
49  pinMode(DATA_R, INPUT);
50  digitalWrite(GND_R, LOW);
51  digitalWrite(VCC_R,  HIGH);
52  Serial.begin(115200);
53  pinMode(button, INPUT);
54  pinMode(yellowled,  OUTPUT);
55}
56
57void loop() {
58  // put your main code here, to run repeatedly:
59
60  for (int i = 0; i < sizeof(recordedSignal) - 1; i++)
61  {
62    buttonState  = digitalRead(button);
63    if (buttonState == LOW)
64    {
65      randomNote  = random(101);
66      int noteDuration = 1000 / noteDurations[randomNote];
67      tone(6, melody[randomNote], noteDuration);
68      int pauseBetweenNotes  = noteDuration * 1.30;
69      delay(pauseBetweenNotes);
70      digitalWrite(yellowled,  HIGH);
71      Serial.print("Binary Value Transmitted: ");
72      Serial.print(digitalRead(DATA));
73      Serial.println();
74      digitalWrite(13, LOW);
75      digitalWrite(DATA,  recordedSignal[i]);
76      delayMicroseconds(315);
77      digitalWrite(13, HIGH);
78    }
79    else {
80        digitalWrite(yellowled, LOW);
81        digitalWrite(13,  LOW);
82        buttonState = 0; 
83    }
84  }
85 
86  delayMicroseconds(9000);
87}
88    
89

#include "pitches.h"
#define GND 8
#define VCC 9
#define DATA  10
#define GND_R 5
#define VCC_R 2
#define DATA_R 4
#define button 12
#define  buzzer 6
#define yellowled 11

int buttonState;
boolean recordedSignal[]  = {1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,  1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0,  1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,  1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0,  0, 1, 0, 0, 1, 1};
int melody[] = {
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_A3,  NOTE_B3, NOTE_D3, NOTE_D4,
  NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_E5,  NOTE_DS5, NOTE_E5, NOTE_FS5, NOTE_B5, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_AS5, NOTE_B5,  0,
  NOTE_FS5, 0, NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_CS6, NOTE_AS5,  NOTE_B5, NOTE_CS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_CS6,
 NOTE_E4, NOTE_F4, NOTE_G4,  NOTE_G4, NOTE_G4, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4,
  NOTE_D4,  NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_GS4, NOTE_DS4, NOTE_FS4,  NOTE_CS4, NOTE_DS4, NOTE_B3, NOTE_CS4, NOTE_B3,
  NOTE_DS4, NOTE_FS4, NOTE_GS4,  NOTE_DS4, NOTE_FS4, NOTE_CS4, NOTE_F4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_CS4,  NOTE_B3, NOTE_CS4,
  NOTE_D4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_CS4,  NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_B3, NOTE_CS4,
  NOTE_FS4, NOTE_GS4,  NOTE_D4, NOTE_DS4, NOTE_FS2, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4  };

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[]  = {
  32, 32, 32, 32, 32, 32, 32, 32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32
};
  int randomNote; 

void setup() {
  // put your setup code here, to run  once:

  pinMode(GND, OUTPUT);
  pinMode(VCC, OUTPUT);
  pinMode(DATA,  INPUT);
  pinMode(13, OUTPUT);
 // pinMode(buzzer, OUTPUT);
  digitalWrite(GND,  LOW);
  digitalWrite(VCC, HIGH);
  pinMode(GND_R, OUTPUT);
  pinMode(VCC_R,  OUTPUT);
  pinMode(DATA_R, INPUT);
  digitalWrite(GND_R, LOW);
  digitalWrite(VCC_R,  HIGH);
  Serial.begin(115200);
  pinMode(button, INPUT);
  pinMode(yellowled,  OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

  for (int i = 0; i < sizeof(recordedSignal) - 1; i++)
  {
    buttonState  = digitalRead(button);
    if (buttonState == LOW)
    {
      randomNote  = random(101);
      int noteDuration = 1000 / noteDurations[randomNote];
      tone(6, melody[randomNote], noteDuration);
      int pauseBetweenNotes  = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      digitalWrite(yellowled,  HIGH);
      Serial.print("Binary Value Transmitted: ");
      Serial.print(digitalRead(DATA));
      Serial.println();
      digitalWrite(13, LOW);
      digitalWrite(DATA,  recordedSignal[i]);
      delayMicroseconds(315);
      digitalWrite(13, HIGH);
    }
    else {
        digitalWrite(yellowled, LOW);
        digitalWrite(13,  LOW);
        buttonState = 0; 
    }
  }
 
  delayMicroseconds(9000);
}

Transmitter & Receiver Hub Code

c_cpp

1#include "pitches.h"
2#define GND 8
3#define VCC 9
4#define DATA   10
5#define GND_R 5
6#define VCC_R 2
7#define DATA_R 4
8#define button 12
9#define   buzzer 6
10#define yellowled 11
11
12int buttonState;
13boolean recordedSignal[]   = {1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,   1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0,   1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,   1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0,   0, 1, 0, 0, 1, 1};
14int melody[] = {
15  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_A3,   NOTE_B3, NOTE_D3, NOTE_D4,
16  NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_E5,   NOTE_DS5, NOTE_E5, NOTE_FS5, NOTE_B5, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_AS5, NOTE_B5,   0,
17  NOTE_FS5, 0, NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_CS6, NOTE_AS5,   NOTE_B5, NOTE_CS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_CS6,
18 NOTE_E4, NOTE_F4, NOTE_G4,   NOTE_G4, NOTE_G4, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4,
19  NOTE_D4,   NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_GS4, NOTE_DS4, NOTE_FS4,   NOTE_CS4, NOTE_DS4, NOTE_B3, NOTE_CS4, NOTE_B3,
20  NOTE_DS4, NOTE_FS4, NOTE_GS4,   NOTE_DS4, NOTE_FS4, NOTE_CS4, NOTE_F4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_CS4,   NOTE_B3, NOTE_CS4,
21  NOTE_D4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_CS4,   NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_B3, NOTE_CS4,
22  NOTE_FS4, NOTE_GS4,   NOTE_D4, NOTE_DS4, NOTE_FS2, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4   };
23
24// note durations: 4 = quarter note, 8 = eighth note, etc.:
25int noteDurations[]   = {
26  32, 32, 32, 32, 32, 32, 32, 32,
27  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
28   32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
29  32,32,32,32,32,32,32,32,32,32,32,
30   32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
31  32,32,32,32,32,32,32,32,32,32,32,32,32,32,
32   32,32,32,32,32,32,32,32,32,32,32,32,
33  32,32,32,32,32,32,32,32,32,32,32
34};
35   int randomNote; 
36
37void setup() {
38  // put your setup code here, to run   once:
39
40  pinMode(GND, OUTPUT);
41  pinMode(VCC, OUTPUT);
42  pinMode(DATA,   INPUT);
43  pinMode(13, OUTPUT);
44 // pinMode(buzzer, OUTPUT);
45  digitalWrite(GND,   LOW);
46  digitalWrite(VCC, HIGH);
47  pinMode(GND_R, OUTPUT);
48  pinMode(VCC_R,   OUTPUT);
49  pinMode(DATA_R, INPUT);
50  digitalWrite(GND_R, LOW);
51  digitalWrite(VCC_R,   HIGH);
52  Serial.begin(115200);
53  pinMode(button, INPUT);
54  pinMode(yellowled,   OUTPUT);
55}
56
57void loop() {
58  // put your main code here, to run repeatedly:
59
60   for (int i = 0; i < sizeof(recordedSignal) - 1; i++)
61  {
62    buttonState   = digitalRead(button);
63    if (buttonState == LOW)
64    {
65      randomNote   = random(101);
66      int noteDuration = 1000 / noteDurations[randomNote];
67       tone(6, melody[randomNote], noteDuration);
68      int pauseBetweenNotes   = noteDuration * 1.30;
69      delay(pauseBetweenNotes);
70      digitalWrite(yellowled,   HIGH);
71      Serial.print("Binary Value Transmitted: ");
72      Serial.print(digitalRead(DATA));
73       Serial.println();
74      digitalWrite(13, LOW);
75      digitalWrite(DATA,   recordedSignal[i]);
76      delayMicroseconds(315);
77      digitalWrite(13, HIGH);
78     }
79    else {
80        digitalWrite(yellowled, LOW);
81        digitalWrite(13,   LOW);
82        buttonState = 0; 
83    }
84  }
85 
86  delayMicroseconds(9000);
87}
88     
89

#include "pitches.h"
#define GND 8
#define VCC 9
#define DATA   10
#define GND_R 5
#define VCC_R 2
#define DATA_R 4
#define button 12
#define   buzzer 6
#define yellowled 11

int buttonState;
boolean recordedSignal[]   = {1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,   1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0,   1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0,   1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0,   0, 1, 0, 0, 1, 1};
int melody[] = {
  NOTE_C4, NOTE_G4, NOTE_A4, NOTE_A3,   NOTE_B3, NOTE_D3, NOTE_D4,
  NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_E5,   NOTE_DS5, NOTE_E5, NOTE_FS5, NOTE_B5, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_AS5, NOTE_B5,   0,
  NOTE_FS5, 0, NOTE_DS5, NOTE_E5, NOTE_FS5, 0, NOTE_B5, NOTE_CS6, NOTE_AS5,   NOTE_B5, NOTE_CS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_CS6,
 NOTE_E4, NOTE_F4, NOTE_G4,   NOTE_G4, NOTE_G4, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4,
  NOTE_D4,   NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_GS4, NOTE_DS4, NOTE_FS4,   NOTE_CS4, NOTE_DS4, NOTE_B3, NOTE_CS4, NOTE_B3,
  NOTE_DS4, NOTE_FS4, NOTE_GS4,   NOTE_DS4, NOTE_FS4, NOTE_CS4, NOTE_F4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_CS4,   NOTE_B3, NOTE_CS4,
  NOTE_D4, NOTE_B3, NOTE_CS4, NOTE_DS4, NOTE_FS4, NOTE_CS4,   NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_CS4, NOTE_B3, NOTE_CS4,
  NOTE_FS4, NOTE_GS4,   NOTE_D4, NOTE_DS4, NOTE_FS2, NOTE_CS4, NOTE_D4, NOTE_CS4, NOTE_B3, NOTE_B3, NOTE_CS4   };

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[]   = {
  32, 32, 32, 32, 32, 32, 32, 32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
   32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,
   32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32,32,32,32,
   32,32,32,32,32,32,32,32,32,32,32,32,
  32,32,32,32,32,32,32,32,32,32,32
};
   int randomNote; 

void setup() {
  // put your setup code here, to run   once:

  pinMode(GND, OUTPUT);
  pinMode(VCC, OUTPUT);
  pinMode(DATA,   INPUT);
  pinMode(13, OUTPUT);
 // pinMode(buzzer, OUTPUT);
  digitalWrite(GND,   LOW);
  digitalWrite(VCC, HIGH);
  pinMode(GND_R, OUTPUT);
  pinMode(VCC_R,   OUTPUT);
  pinMode(DATA_R, INPUT);
  digitalWrite(GND_R, LOW);
  digitalWrite(VCC_R,   HIGH);
  Serial.begin(115200);
  pinMode(button, INPUT);
  pinMode(yellowled,   OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

   for (int i = 0; i < sizeof(recordedSignal) - 1; i++)
  {
    buttonState   = digitalRead(button);
    if (buttonState == LOW)
    {
      randomNote   = random(101);
      int noteDuration = 1000 / noteDurations[randomNote];
       tone(6, melody[randomNote], noteDuration);
      int pauseBetweenNotes   = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      digitalWrite(yellowled,   HIGH);
      Serial.print("Binary Value Transmitted: ");
      Serial.print(digitalRead(DATA));
       Serial.println();
      digitalWrite(13, LOW);
      digitalWrite(DATA,   recordedSignal[i]);
      delayMicroseconds(315);
      digitalWrite(13, HIGH);
     }
    else {
        digitalWrite(yellowled, LOW);
        digitalWrite(13,   LOW);
        buttonState = 0; 
    }
  }
 
  delayMicroseconds(9000);
}

Downloadable files

Arduino w/ all Components

The diagram labels how to connect all the pins and components between the Arduino and breadboard, as well as the resistors.

Arduino w/ all Components

The diagram labels how to connect all the pins and components between the Arduino and breadboard, as well as the resistors.

Arduino w/ all Components

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