🔦🎵 DIY Mini Emergency Light with Bluetooth Speaker

 

🔦🎵 DIY Mini Emergency Light with Bluetooth Speaker


Why not enjoy light and music during a power outage? This DIY combo device combines a mini emergency LED light with a Bluetooth speaker, making it perfect for blackouts, camping, or travel.


🧾 Components Required

ComponentPurpose
3.7V 18650 BatteryPower source
TP4056 Charging ModuleBattery charging & protection
Boost Converter (5V)Step up voltage for circuit
Bright White LEDs (3–5)Emergency lighting
Resistor (100–220 ohm)For LEDs
Bluetooth Audio Module (e.g., MH-M18 or XS3868)Wireless music
Small Speaker (3W–5W)Audio output
On/Off SwitchPower control
USB Cable / PortCharging input
Small Enclosure BoxFinal body casing

⚙️ Circuit Overview

Lighting Section:

  • Battery → Boost Converter (5V) → Switch → Resistor → LEDs

Audio Section:

  • Battery → Bluetooth Module → Speaker

You can power both sections from the same boosted 5V line.


✅ Features

  • Bright LED emergency light

  • Bluetooth audio up to 10 meters range

  • Rechargeable with USB charger

  • Compact & portable

  • Great for homes, study tables, or outdoor use


🛠️ Assembly Steps

  1. Fix LEDs in front and connect them with a resistor to boost converter output.

  2. Mount the Bluetooth module and speaker inside the box.

  3. Connect battery to TP4056, and output to the boost converter.

  4. Add a switch to control both light and audio.

  5. Secure all parts inside the box and test.


🔋 Charging Tip

Use TP4056’s micro USB port for charging. A red LED shows charging, blue means full.


🧠 Extra Ideas

  • Add FM module for radio

  • Include volume buttons or switch

  • Add solar panel for charging in sunlight


🎯 Final Thoughts

This mini Bluetooth speaker with emergency light is not just practical—it’s a perfect blend of entertainment and utility. Ideal for students, campers, or anyone who loves smart DIY electronics!

Comments

Popular Posts

F450 Drone Kit DIY Quadcopter Flying Multicopter Heli Flame Wheel Kit in Pakistan

Heat Gun – For loosening glue/seals

PVC Pipe Mini Washing Machine

DIY Mini iPhone 17 Pro Max with Paper and Cardboard

Mini Wind Turbine with PVC Pipes

Touch Sensor

PVC Pipe Mini Lathe Machine

Gas Leakage Sensor

DIY electric fireplace decor