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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Compact Stereo 2.1W Class D Amplifier — TPA2012
The TPA2012 Stereo 2.1W Class D Audio Amplifier is a tiny, efficient breakout from Adafruit that outputs 2×2.1W into 4Ω speakers. It runs on 2.5–5.5V, making it perfect for battery-powered projects, wearables, and embedded audio systems where space and power consumption are at a premium.
Technical specifications
| Chip | TPA2012D2 (Texas Instruments) |
|---|---|
| Output Power | 2×2.1W (4Ω, 5V) |
| Channels | 2 (stereo) |
| Supply Voltage | 2.5–5.5V |
| Class | Class D |
| Gain | Selectable via solder jumpers (6/12/18/24 dB) |
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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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