DC Motor Speed Controller – Using PWM circuit to control speed of a small DC motor.
DC Motor Speed Controller – Using PWM circuit to control speed of a small DC motor.
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🔊 Mini Speaker Made by Ahmed – Compact Sound, Big Fun!
🔊 Mini Speaker Made by Ahmed – Compact Sound, Big Fun! In this project, Ahmed has built a DIY mini speaker using basic components. It’s a simple, budget-friendly speaker that can play music from a mobile phone, MP3 player, or any audio jack source. 🧾 Components Used Component Description Small Speaker (8Ω, 0.5–1W) Main audio output unit Audio Amplifier (LM386) Boosts the audio signal Capacitor (100µF, 10µF) For sound filtering and gain Potentiometer (10k) For volume control Aux Cable / 3.5mm Jack To connect audio input 9V Battery / Power Bank Power source Small PCB or Breadboard For assembling the circuit Enclosure Box For a neat and safe finish ⚙️ How It Works The audio signal comes from the AUX cable. The LM386 amplifier IC boosts the weak audio signal. The amplified signal is sent to the 8Ω speaker , producing sound. A potentiometer controls volume manually. 📐 Simple Circuit Overview mathematica Copy Edit Audio In ( 3.5 mm Jack ) ↓ ...