CSR4.0 Bluetooth Audio Receiver TDA7492P Amplifier 50W + 50W Audio Amplification Shield

Description

Bluetooth Audio Receiver CSR4.0 TDA7492P Amplifier 50W + 50W Audio Amplification Board

This paragraph automatically enters pairing mode after power-on, the device name displayed in search: SANWU Audio

Power Supply: 2.1 DC Interface 8 ~ 25V

Audio Input: stereo input various versions of Bluetooth connectivity, using the CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility

Output Impedance: 8 Ohm optimal (speakers of 4, 6, 8, 16 Ohm impedance can be driven)

Output Power: add the output pin pre-5532

DIP switches can be easily adjusted directly after the amplifier gain, better promote the damping of the large horn

Tutorial: How to use Bluetooth Audio Receiver CSR4.0 TDA7492P

This Bluetooth audio receiver is ideal for anyone who wants to transmit music from a mobile device to an external speaker system without necessarily using a cable. It is suitable for both beginners and experts.

What you need

• Arduino Uno or compatible
• PC with Arduino IDE software installed
• 12V power supply
• Connection cables

Steps

1. Connect the module power supply to an external 12V power adapter.
2. Connect the Bluetooth module to pin 0 and 1 of the Arduino for serial communication.
3. Install the necessary libraries in the Arduino IDE software (BluetoothSerial).
4. Write a simple sketch that establishes a connection with an audio device via Bluetooth.
5. Configure the power supply for the TDA7492P amplifier module.
6. Connect the amplifier output cables to the right and left channels of the speakers.
7. Test the connection between the audio device and the Bluetooth receiver.
8. Check that the audio is playing correctly through the speakers.

Example code

BluetoothSerial bt;

void setup() {
  bt.begin(9600);
}

void loop() {
  if (bt.available()) {
    int volume = bt.read();
    // Regolare il volume dell'amplificatore in base al valore ricevuto
  }
}

Mini project

Create an external audio system for your home or studio by connecting this module to a pair of speakers. Use Arduino to control the volume and other functions.

Common mistakes

• The Bluetooth device is not recognized.
• Insufficient power supply issues.
• Unstable connection between Arduino and the Bluetooth module.
• Speakers not responding correctly to the amplifier.

Recommended accessories

• Variable resistors to adjust the volume
• RCA audio cables for precise connection
• External antenna to improve Bluetooth connection
• Arduino Mega board for more advanced control

Frequently asked questions

How can I configure the amplification?
Check the TDA7492P datasheet for amplification settings.

Which libraries are needed?
BluetoothSerial and others as needed, check the Arduino documentation.