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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Electret Microphone Module — MAX4466 Adjustable Gain
This MAX4466 Electret Microphone Amplifier Module features an electret condenser mic paired with a MAX4466 op-amp for clean analog audio output. The onboard trimmer lets you dial in the right gain for your application — from quiet environmental monitoring to louder sound-level detection.
Technical specifications
| Chip | MAX4466 |
|---|---|
| Gain | Adjustable via trimmer (25x–125x) |
| Output | Analog |
| Supply | 2.4–5V |
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Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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