RDIoT Demo

Sound Control LED Lamp Module [S175]

https://www.youtube.com/watch?v=I08YWqnpbPY

* Specs

Size: 52mm*75mm

Installing Hole: Φ3

Power Supply: Powered By USB (The input cannot exceed 12V)

Power Consumption: Max. 2W (Output: 5V, All LEDs are on.)

* Contents

- Connect

USB connect

ISD 1820 Voice Recording Module (ISD1820) [S082]

https://www.youtube.com/watch?v=cj9h0Bzwcok

*GitHub : 

* Specs

ISD1820 Voice Recording Module is another very interesting stuff. You don't need to prepare a speaker and a mic - both are included in this module! After connecting to the power, you can press REC to record a 10 second voice. Press PLAYE to play the complete voice once. Press and hold PLAYL it will play the voice and it stop when the button is released. It can also be controlled by Arduino. Combined with Laser Detector and Laser Module, you can make a doorbell, security system, and power-saving light along corridor for instance.

* Contents

- Connect

VCC ----- 5V

GND ----- GND

P-E ----- D13

REC ----- D11

- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

int Rec = 11;

int Play = 13;

void setup()

{ 

  pinMode(Rec, OUTPUT); 

  pinMode(Play, OUTPUT);

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");

  delay(1000);

  lcd.clear();

}

void loop()

{

  lcd.setCursor(0,0);

  lcd.print("S082:ISD1820 Module");

  digitalWrite(Rec, HIGH); // record 10sec

  lcd.setCursor(0,1);

  lcd.print("Rec: HIGH ");

  delay(10000);

  digitalWrite(Rec, LOW); // end record 

  lcd.setCursor(0,1);

  lcd.print("Rec: LOW  ");

  delay(5000);

  digitalWrite(Play, HIGH); // play 

  lcd.setCursor(0,1);

  lcd.print("Play: HIGH");

  delay(100);

  digitalWrite(Play, LOW); // stop play

  lcd.setCursor(0,1);

  delay(10000);

  lcd.print("Play: LOW ");      

}

Small Sound Detection Module (KY-038) [S053]

https://www.youtube.com/watch?v=WFB0QkhGm20

* GitHub : https://github.com/rdiot/rdiot-s053.git

* Specs

Dimensions: 1.38 in x 0.59 in x 0.51 in (3.5 cm x 1.5 cm x 1.3 cm)

Weight: 0.11 oz (3 g)

Main chip: LM393

Electret condenser microphone

Working voltage: DC 4-6V

Interface definition:

AO: analog output sensor

GND: ground

VCC: Power supply input range: 3V-24V.

DO: Digital Output (comparator output)

Two red LED indication: POWER and SENSOR. POWER: Power is off.

SENSOR: When the microphone senses sound reaches a certain value, this LED light.

Single channel signal output

Low level output signal used for sound control light

Great module for sound alarm system

LM393 main chip

Electric condenser microphone

* Contents

- Connect

A0 ----- A0

G ----- GND

+ ----- 5V

D0 ----- X

- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

int threshold = 30; 

int led1 = 2;

int led2 = 3;

int led3 = 4;

int led4 = 5;

int led5 = 6;

int pin = A0;

void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");

  pinMode(pin,INPUT);

  pinMode(led1,OUTPUT);

  pinMode(led2,OUTPUT);

  pinMode(led3,OUTPUT);

  pinMode(led4,OUTPUT);

  pinMode(led5,OUTPUT);

  delay(1000);

  lcd.clear();

}

void loop()

{

  lcd.setCursor(0,0);

  lcd.print("S052:SoundDetect");

  int val = analogRead(pin);

  lcd.setCursor(0,1);

  lcd.print("val=" + (String)val + "  ");

  if(val <= threshold)

  { 

    lcd.setCursor(0,2);

    lcd.print("                    ");

  }

  else

  {

    lcd.setCursor(0,2);

    lcd.print("Small Sound Detected");

    delay(100);  

  }

  digitalWrite(led1, LOW); 

  digitalWrite(led2, LOW); 

  digitalWrite(led3, LOW); 

  digitalWrite(led4, LOW); 

  digitalWrite(led5, LOW); 

  if(val > 30) { digitalWrite(led1, HIGH); }

  if(val > 31) { digitalWrite(led2, HIGH); }

  if(val > 32) { digitalWrite(led3, HIGH); }

  if(val > 35) { digitalWrite(led4, HIGH); }

  if(val > 40) { digitalWrite(led5, HIGH); }

  delay(50);

}