🔦🎵 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 Component Purpose 3.7V 18650 Battery Power source TP4056 Charging Module Battery 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 Switch Power control USB Cable / Port Charging input Small Enclosure Box Final 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 1...
