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 Amplifier Breakout — MAX4466 with Adjustable Gain
The Adafruit MAX4466 Electret Microphone Amplifier is a compact breakout that pairs an electret mic capsule with a low-noise op-amp for a clean, amplified analog audio signal you can read with any ADC. A small trimmer pot lets you set the gain from 25x to 125x, making it easy to tune sensitivity for your specific application.
Technical specifications
| Chip | MAX4466 (Maxim) |
|---|---|
| Microphone | Electret condenser (omnidirectional) |
| Gain | 25x to 125x (adjustable via trimmer) |
| Output | Analog (peak-to-peak AC centered at VCC/2) |
| Supply Voltage | 2.4–5V |
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.
Compatibility & downloads
// downloads
- Max4465 Max4469 pdf
- Cma 4544Pf W pdf
- GitHub PCB repo git
- GitHub PCB repo git
- GitHub PCB repo git
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