RDIoT Demo

Mini Dome Tweeter Loud Speaker 500W (TP-005A) [D059]

* Specs

Features:

High efficiency dome tweeter Instant installation Fits anywhere of all car audio systems More sound,

less energy No magnetic field, tapes and credit cards are safe 2.8 Volts 97dB of pure sound

Specifications:

Line length: 23cm

Original box: Yes

Color: Black

Net weight: 43g

Package weight: 51g

Packing content:

1 x pair of dome tweeter

4Ohm 10W Speaker [D073]

* Specs

2pcs 2" inch 4Ohm 10W Full Range Audio Speaker Stereo Woofer Loudspeaker Horn

Impedance : 4Ω

Power : 10W

Neodymium Magnet Size : 19.2x5mm

Voice Coile Diameter: 20mm

Length: 53mm

Height 28mm

Diagonal Holes Pitch: 60mm

Neighbor Holes Pitch: 42mm

Features: 20mm voice coile neodymium magnet

4Ohm 3W Speaker [D072]

* Specs

2pcs 45MM 4Ohm 4Ω 3W full-range Speaker Loudspeaker For DIY

Specification:

Speaker height: 18mm

Speaker Diameter: 45mm

Impedance: 4 Ohm

Power: 3 W

Double magnetic thin high-quality

Package Including:

Speaker  x 2pcs

Sound Output Speaker Module (RB-02S093) [D049]

https://www.youtube.com/watch?v=lVRLvdxyw9A

* GitHub : https://github.com/rdiot/rdiot-d049.git

* Specs

1.Product Name: Speaker Module

2.Product Number: RB-02S093

3.Working Voltage: 5v

4.Dimensions: 45mm*25mm

5.Weight: 5g

6.Singal Type: Digital Signals

7.Data Type: Digital Input

8.Pin Definitions：（1）S：Signal (2）-：GND （3）+:VDD

* Contents

- Connect

S ----- D3

+ ----- 5V

- ----- GND

Sound recordable module 10sec [S191]

https://www.youtube.com/watch?v=67x7TpmRhlQ

* Specs

Features:

With speaker, microphone and button

Record your own message

Great for greeting cards

Convenient

Designed for cardmaking and other similar projects.

Allows you to add sound to custom made cards using your own papers and decorations.

Can also be used in printed card projects.

Mounted on a crystal clear backing for a cleaner, more look.

The built-in voice recorder allows you to record up to a 120 second message. If you make a mistake you can re-record your message

Specifications:

Play Life: 200 plays

Shelf Life: 2 years

Power: 2 button batteries (included)

Recording time: 10 seconds

Speaker diameter: 4cm

Color: Black

Material: Plastic + Metal

Net Weight: 17.6g

* Contents

- Connect

Mic

Recoding LED

Record Start/Stop

Play Start/Stop

0.5W 8Ohm Speaker

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 ");      

}

FM Radio Receiver Module 87-108MHz with Serial Control [S222]

https://www.youtube.com/watch?v=CpoA0x5llbk

* Specs

Features

-adopt the advanced technology of DSP and FM modulation PLL to make sound more realistic, more stable performance,

long working hours without frequency offset.

-LCD display more intuitive and accurate, with very low power consumption and minimal noise interference.

-30 range digital volume adjustment, can be easily operated with keystrokes.

-Automatic memory data before the power failure.

-Automatically switched speaker and reciver output

-Adopt quartz crystal frequency stabilization, the temperature change is no longer receiving frequency drift.

-The professional audio DSP audio signal analysis and processing, automatic mute

no signal or weak when FM signal noise, get rid of traditional FM radio in the absence

of signal or weak signal when annoying rustling.

-Adopt digital incremental rotary encoder to adjust the volume and frequency, well handfelt,

precise positioning, stable and durable, 360°rotation without dead ends.

Support for serial communication control, able to use computer or MCU module device can control all functionality.

Specifications

Output power: 500mW (actuate reciver), 3Wx2 (actuate speaker)

Frequency range: 50Hz-18KHz

Receiving frequency range:

Close the campus radio 87.0MHz-108.0MHz

Open the campus radio 76.0MHz-108.0MHz

Equivalent noise: ≥30dB

Supply voltage: 3.0V-5.0V

Channel: Stereo

Supply Current: maximum volume 1000mA, minimum volume under 60mA (for reference only)

* Contents

- Connect

VCC ----- 3.3V (3~5V)

GND ----- GND

ANT ----- Line 

Audio ----- Speaker

TEA5767 FM Stereo Radio Module (TEA5767) [S109]

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

*GitHub : https://github.com/rdiot/rdiot-s109.git

* Specs

power supply: 5V

Frequency range: 76-108MHZ

PCB size: 31*30mm

With reverse polarity protection diode

With power output filtering sensor

Directly plug antenna interface

I2C bus communication

Multi capacitor combined filter

Blue LED power indicator

FM chip module TEA5767

Onboard 3.5mm audio interface

If connects with singlechip, only connect the Power Ground and two I2C communication cable

Features:

LC harmonic oscillator use low cost fixed chip

No need to adjust Intermediate frequency

High sensitivity(low noise RF input amplifier)

High power auto gain control AGC circuit

Soft mute

* Contents

- Library : http://playground.arduino.cc/Main/TEA5767Radio

- Connect

VCC ----- 5V

SDA ----- SDA / A5

SCL ----- SCL / A4

GND ----- GND

- Key Code

#include <Wire.h>

#include <TEA5767Radio.h>

TEA5767Radio radio = TEA5767Radio();

void setup()

{

  Wire.begin();

  radio.setFrequency(89.1); // pick your own frequency

}