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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Dual-Channel Speaker Amplifier — TDA7266 Module
The TDA7266 Audio Amplifier Module is a Class AB stereo amplifier capable of driving a pair of speakers at moderate power. Class AB topology provides good sound quality with a warmer character compared to Class D digital amps — favored in some Hi-Fi and audio-purist applications.
Technical specifications
| Chip | TDA7266 (STMicroelectronics) |
|---|---|
| Output Power | 2×7W (4Ω) |
| Channels | 2 (stereo) |
| Class | Class AB |
| Supply Voltage | 3–18V DC |
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