Circuit Documentation

Summary

This document provides a detailed overview of a Bluetooth audio receiver circuit. The circuit includes a Bluetooth audio receiver, an amplifier board, a battery charger, a push switch, a Li-ion battery, a speaker, and a tweeter. The components are interconnected to form a functional audio system that can receive audio signals via Bluetooth and amplify them for output through the speaker and tweeter.

Component List

1. 5V Bluetooth Audio Receiver

   • Pins: R, G, L, 5V
   • Description: Receives audio signals via Bluetooth and outputs them through the R (Right), L (Left), and G (Ground) pins.

2. 5V Amplifier Board

   • Pins: -, +, G, Vin, R, T, L
   • Description: Amplifies audio signals received from the Bluetooth audio receiver and outputs them to the speaker and tweeter.

3. Battery Charger 4.2V

   • Pins: OUT+, OUT-, B+, B-, IN+, IN-
   • Description: Charges the Li-ion battery and provides power to the circuit.

4. 2-Pin Push Switch

   • Pins: Input +, Output +
   • Description: Acts as a power switch for the circuit.

5. Li-ion Battery 18650-2000mAh 3.7V 7.4WH

   • Pins: +, -
   • Description: Provides power to the circuit.

6. Speaker

   • Pins: +, -
   • Description: Outputs amplified audio signals.

7. Tweeter

   • Pins: +, -
   • Description: Outputs high-frequency audio signals.

Wiring Details

5V Bluetooth Audio Receiver

• R pin is connected to the R pin of the 5V Amplifier Board.
• G pin is connected to the T pin of the 5V Amplifier Board.
• L pin is connected to the L pin of the 5V Amplifier Board.
• 5V pin is connected to the Output + pin of the 2-Pin Push Switch.

5V Amplifier Board

• - pin is connected to the + pin of the Speaker.
• + pin is connected to the - pin of the Speaker.
• R pin is connected to the R pin of the 5V Bluetooth Audio Receiver.
• T pin is connected to the G pin of the 5V Bluetooth Audio Receiver.
• L pin is connected to the L pin of the 5V Bluetooth Audio Receiver.
• Vin pin is connected to the Output + pin of the 2-Pin Push Switch.
• G pin is connected to the OUT- and B- pins of the Battery Charger, and the - pin of the Li-ion Battery.
• + pin is connected to the + pin of the Tweeter.
• - pin is connected to the - pin of the Tweeter.

Battery Charger 4.2V

• OUT- pin is connected to the G pin of the 5V Amplifier Board.
• B- pin is connected to the G pin of the 5V Amplifier Board.
• OUT+ pin is connected to the Input + pin of the 2-Pin Push Switch.
• B+ pin is connected to the Input + pin of the 2-Pin Push Switch.
• IN+ and IN- pins are not connected in this circuit.

2-Pin Push Switch

• Input + pin is connected to the OUT+ and B+ pins of the Battery Charger, and the + pin of the Li-ion Battery.
• Output + pin is connected to the Vin pin of the 5V Amplifier Board and the 5V pin of the 5V Bluetooth Audio Receiver.

Li-ion Battery 18650-2000mAh 3.7V 7.4WH

• + pin is connected to the Input + pin of the 2-Pin Push Switch.
• - pin is connected to the OUT- and B- pins of the Battery Charger, and the G pin of the 5V Amplifier Board.

Speaker

• + pin is connected to the - pin of the 5V Amplifier Board.
• - pin is connected to the + pin of the 5V Amplifier Board.

Tweeter

• + pin is connected to the + pin of the 5V Amplifier Board.
• - pin is connected to the - pin of the 5V Amplifier Board.

Code

There is no code associated with this circuit.