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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Premium Stereo 20W Class D Amplifier — MAX9744
The Adafruit Stereo 20W Class D Audio Amplifier (MAX9744) is a high-quality stereo amplifier that outputs 2×20W with exceptionally low noise and distortion. Volume control via I2C makes it easy to integrate with microcontrollers. It's Adafruit's top pick for powered speaker builds that need clean, loud audio.
Technical specifications
| Chip | MAX9744 (Maxim) |
|---|---|
| Output Power | 2×20W (4Ω) |
| Channels | 2 (stereo) |
| Volume Control | I2C digital + analog potentiometer |
| Supply Voltage | 4.5–14V DC |
| Class | Class D |
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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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