🔊💡 Dual Function DIY – Amplifier & Emergency Light Combo

 

🔊💡 Dual Function DIY – Amplifier & Emergency Light

Combo


Looking for a compact DIY project that plays music and lights up your room in a power outage? Ahmed’s latest creation combines two useful functions: an audio amplifier and an emergency LED light – all in one small device.

🧾 Components Used

ComponentFunction
PAM8403 / LM386 ICAudio amplifier
Bluetooth/AUX ModuleFor audio input
3W / 5W SpeakerSound output
18650 Battery (x2)Power source
TP4056 Charging ModuleRecharge battery safely
White LED Strip / 1W LEDEmergency lighting
Toggle Switch (x2)Separate control for light/audio
Heat Sink & EnclosureFor safety and design

⚙️ How It Works

  • The audio amplifier is connected to the input source (Bluetooth or AUX), playing music through the speaker.

  • The LED light is wired separately with a switch. It turns on during power outages or as needed.

  • Battery + TP4056 powers both, with a USB port to recharge it easily.

📐 Circuit Diagram (Simplified)

scss
[Battery] ─> [TP4056 Charging Module] ─┬──> [Amplifier] → Speaker  
                                      └──> [LED Light] (via switch)

✅ Features

  • Dual-purpose: music + emergency lighting

  • Rechargeable with USB

  • Portable and lightweight

  • Power backup: 3–5 hours depending on use

  • Separate switches for independent control

🎯 Real-Life Uses

  • Great for home or hostel

  • Ideal for load shedding in Pakistan

  • Can be used as a travel gadget

  • Perfect school/college electronics project

🛠️ Ahmed's Creativity

Ahmed used a recycled plastic case, added small cooling vents, and mounted the LED and speaker on opposite sides for better functionality.

🧠 Final Thoughts

This DIY Amplifier + Emergency Light is not just a fun build – it’s actually useful in everyday life. Combining two electronics in one device saves space, cost, and time.

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