8 Ω 0.5–2 W Mini Speaker
by Generic
SKU: PSA-CMP-SPEAKER-8R
No reviews yetTypical India street price
₹25–₹80
Physical speaker cone — sound labs beyond a piezo.
Interface: Analog coil
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Concept
A coil in a magnet moves a cone when current flows.
A little theory
Don’t PWM a speaker from an MCU pin (current + DC). Use PAM8403 or a capacitor + transistor. In the classroom, treat 8 Ω 0.5–2 W Mini Speaker as a beginner part using Analog coil. Typical India street price is about ₹25–₹80. Always verify voltage and pin labels on your exact module — silk screens vary across clones. Start with a datasheet or trusted learn guide, power the part correctly, share GND with the MCU, and test with a simple blink/read sketch before building the full project. Measure voltages with a multimeter when something fails, and keep actuator current off the MCU regulator.
How it works in a project
Connect to PAM8403 outputs.
Classroom & project use
- Audio out
- Science of sound
- LEDs & Indicators classroom demo
Buying in India
Precautions
- Share a common GND with the microcontroller
- Verify polarity and voltage before powering the circuit
Specifications
| Impedance | 8Ω |
| Category | LEDs & Indicators |
| Difficulty | Beginner |
| Voltage | Drive via amp / transistor |
| Interface | Analog coil |
Pinout
VCC | GND | AO (and DO if comparator module)
