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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Coin Cell Battery CR2032 (20mm)
The CR2032 Coin Cell Battery (3V) is a standard lithium coin cell used in RTCs, key fobs, small sensors, and low-power wearable projects. Pair it with a coin cell holder for easy integration.
Coin cell comparison
| Model | Diameter | Thickness | Capacity |
|---|---|---|---|
| CR1225 | 12 mm | 2.5 mm | ~50 mAh |
| CR2025 | 20 mm | 2.5 mm | ~165 mAh |
| CR2032 | 20 mm | 3.2 mm | ~225 mAh |
Technical specifications
| Model | CR2032 |
|---|---|
| Chemistry | Lithium |
| Voltage | 3V |
| Diameter | 20mm |
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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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