Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
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Stereo Hi-Fi Amplifier Board — TDA3116D2 Dual Channel 12–24V
The TDA3116D2 Dual Channel Amplifier is a versatile stereo Class D board powered by the popular TPA3116D2 chip. Running on 12–24V DC, it outputs up to 2×50W with excellent efficiency and low distortion — making it a top choice for DIY bookshelf speakers, desktop audio, car audio, and home theater projects.
Why choose it
- 2×50W stereo: Plenty of power for medium to large speakers
- 12–24V supply: Works with laptop chargers, car batteries, or bench supplies
- Low distortion: Clean audio across the frequency range
- High efficiency: ~90% — barely gets warm
Technical specifications
| Chip | TPA3116D2 (Texas Instruments) |
|---|---|
| Output Power | 2×50W (4Ω, 24V) / 2×30W (8Ω, 24V) |
| Channels | 2 (stereo) |
| Class | Class D |
| Supply Voltage | 12–24V DC |
| Efficiency | ~90% |
| Speaker Impedance | 4Ω–8Ω |
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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