LM386 Audio Amplifier Module 5V-12V 200 Times Gain Mono Speaker Board

🔧 LM386 Audio Amplifier Module 5V-12V 200 Times Gain Mono Speaker Board | AuscomTech

This LM386 audio amplifier module is a compact mono speaker amplifier board for low-voltage audio projects.

It boosts a small audio input signal and provides speaker output using the onboard LM386 amplifier IC.

Typical use includes DIY speakers, Arduino sound projects, signal testing, learning circuits, and embedded audio output.

⭐ Key Features

• Mono Audio Output – suitable for driving a single small speaker in simple sound projects
• 5V–12V DC Operation – works with common low-voltage power supplies and microcontroller project setups
• 200 Times Gain – designed to amplify weak input signals for speaker-level output
• Adjustable Volume – onboard 10K variable resistor allows manual output level adjustment
• Screw Terminal Speaker Connection – provides a secure OUT+ and GND- connection for speaker wiring
• Direct Signal Input Pins – header connection for audio input positive, audio input negative, VDD+, and GND-
• Power Indicator LED – shows when the module is powered

📊 Technical Specifications

• Main IC: LM386
• Module Type: mono audio power amplifier board
• Operating Voltage: DC 5V–12V
• Gain: 200 times
• Volume Control: onboard 10K adjustable resistor
• Input Connections: audio input +, audio input -, VDD+, GND-
• Output Connections: OUT+ and GND- screw terminal
• Indicator: onboard power LED

🧩 Typical Applications

• DIY speaker projects
• Arduino audio output
• ESP32 tone and sound projects
• Small electronic alarm circuits
• Audio signal amplification
• Educational electronics experiments
• Low-voltage embedded sound systems

⚠️ Important Notes

• This is a mono amplifier module, not stereo
• Power supply and speaker are not included
• Check wiring polarity before applying power
• Use a suitable small speaker for low-power amplifier projects
• Audio performance depends on power supply quality, wiring, signal source, and speaker selection

📦 Package Includes

• 1 × LM386 Audio Amplifier Module

🔗 Recommended Accessories (Not Included)

• Small speaker – for audio output
• 5V–12V DC power supply – for powering the module
• Dupont jumper wires – for connecting signal and power pins
• Arduino or ESP32 board – for tone generation and audio projects