Bluetooth Voice Operated Notice Board

By connecting a Bluetooth-enabled device, users can update the notice board in real-time, ensuring that the displayed information is always up-to-date. The convenience and interactivity of Bluetooth voice messaging enhance communication efficiency and engagement, making it accessible for everyone.

At Robotshapers, we embrace this cutting-edge technology and offer a range of solutions to transform communication experiences. Explore the possibilities and discover how Bluetooth Voice Operated Notice Board can reshape the way you share information. Visit robotshapers.com and embark on a journey of seamless and efficient communication.

Bluetooth Voice notice Board is a modern solution that allows users to view messages and make announcements wirelessly using voice commands. It has a digital panel with Bluetooth connectivity and a microphone for audio input.

This technology allows users to write messages or texts using their voices, which are then converted to text and displayed on a poster. Eliminates the need for manual typing or physical interaction with the card. The Bluetooth Voice Operated Bulletin Board provides convenience and functionality in a variety of applications. It can be used in offices, schools, hospitals and public places to display important information, schedules, alerts or emergency notifications.

Users can check the text message by connecting a smartphone or other Bluetooth device. They can update and update the guide in real time so that new information is easily available.

These technologies make the communication process easier, faster, more interactive and accessible for everyone. Bluetooth voice messaging is revolutionizing the way information is shared, encouraging collaboration and improving overall communication. 

The Bluetooth module allows communication between the circuit and a Bluetooth-enabled device that acts as a controller, such as a smartphone or tablet.

HC05 Bluetooth Module:

The HC-05 is a popular Bluetooth module used for wireless communication in a variety of applications. Here are some details of HC-05 Bluetooth module:

1. Function: The HC-05 module is designed to establish a wireless Bluetooth connection between devices. It can be a master or slave, allowing it to interact with other Bluetooth devices such as smartphones, tablets, computers and microcontrollers.
   
2. Bluetooth version: The HC-05 module is based on the Bluetooth 2.0 + EDR (Enhanced Data Rate) specification.
   It supports various Bluetooth profiles, including the Serial Port Profile (SPP), which allows it to send and receive serial data.
   
3. Communication Interface: The module uses a communication interface, usually UART (Universal Asynchronous Transceiver) to send and receive data. This makes it easy to connect with microcontrollers or other devices that support serial communication.
   
4. Range: The HC-05 module has a maximum range of approximately 10 meters (30 feet) in an open environment. This range varies depending on the environment and affects the signal path.
   
5. Operating Voltage: The module usually works at 3.3V, but its serial interface can tolerate 5V logic level.
   Some models of this model may have a built-in generator that allows them to be used directly from the 5V supply.
   
6. Pairing and Configuration: The HC-05 module can be paired with other Bluetooth devices using a PIN code. By default, the PIN number is usually "1234" or "0000". The module can be configured using AT commands that allow you to change settings such as Bluetooth device name, baud rate and operating mode.
   
7. Working mode: The HC-05 module supports various working modes, including data transmission and command mode. In data transfer mode, it acts as a transparent bridge, allowing data to be sent and received between connected devices. In command mode, AT commands can be used to configure the module.
   
8. Compatibility: The HC-05 module is widely used with various microcontrollers and devices that support communication. It can be used with Arduino boards, Raspberry Pi and other development platforms.

HC-05 Bluetooth modules usually have six pins, each with a specific purpose. Here are the details of the pins of the HC-05 Bluetooth module:

1. VCC: This pin is used to power the module. It must have a 3.3V power supply. Some models of this model can tolerate 5V, but 3.3V is generally recommended to prevent damage.
   
2. GND: The GND pin is the ground connection of the module. It must be connected to the ground of the circuit or power supply.
   
3. TXD: The TXD pin is the transmit pin for serial communication. It is used to send data from the module to another device. It must be connected to the receiver (RX) pin of the device you are communicating with.
   
4. RXD: The RXD pin is the receiver pin for serial communication. It is used to receive data from other devices. It must be connected to the transmit (TX) pin of the device you are communicating with.
   
5. STATE: The STATE pin is optional and not always available on all HC-05 modules. If yes, indicate the current state of the Bluetooth module, such as whether it is in discoverable mode or connected to a device.
   
6. EN (Enable): The EN pin is another optional pin that may or may not be available on all HC-05 modules. If so, it is used to check the power status of the module. By putting a logic level high (eg 3.3V) you activate the module and pulling it low (eg 3.3V) you activate the module.
   For example, you can disable the module (connected to ground).

Application for the control (AMR voice):

All you have to do is turn on bluetooth on your phone and pass the number "1234". After pairing, open the app, press the star icon and choose "Connect to Car", you will see "HC05" in the list, click on it and it will pair. Then you can control your robot with your phone by giving voice commands.

Circuit diagram:

Code:

#include 
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);
String voicecommand ;
void setup() 
{
Serial.begin(9600);
 lcd.begin(16, 2);
  lcd.setCursor(0,0);
  lcd.print("Robotshapers");
  delay(1500);
  lcd.clear();
  lcd.setCursor(0,1);
  lcd.print("Voice operated");
  delay(1500);
  lcd.setCursor(0,1);
  lcd.print("Notice Board");
  delay(1500);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Text:");
}
void loop() 
{
 delay(10);
 while(Serial.available()) 
 {
 voicecommand = "";  
 voicecommand = Serial.readString();
 lcd.clear();
 lcd.setCursor(0,1);
 lcd.print(voicecommand);
}
  
}

Applications:

Bluetooth voice messaging has many uses to facilitate communication and enhance collaboration across multiple environments.

1. Offices and Offices: Newspapers can be used in corporate environments to present important announcements, meetings, company updates or announcements. Users can easily update the motherboard by voice command, ensuring timely distribution of relevant information.
2. Universities: Schools, colleges and universities can use the banner to display the syllabus, event details, exam announcements or school announcements. Teachers or administrators can change the whiteboard using voice commands, which simplifies the process and reduces manual labor.
   Public places: airports, train stations, shopping malls, etc. to provide Bluetooth voice messaging, real-time updates, travel information or advertising information. It can be installed in public places such as Users can remotely control the card to make sure the information displayed is always updated.
3. Medical: In a hospital or clinic, text messages can be used to present patients, schedule appointments, or health alerts. Doctors or staff can easily update the dashboard with commands, ensuring accurate and timely communication.
4. Community Centers and Events: Newspapers can be used to promote community events, publish news or provide information about local services.Organizations can host meetings using audio, enabling better communication with community members.

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