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.
read tutorial →
Adafruit Micro Lipo USB LiIon/LiPoly Charger v1
The Adafruit Micro Lipo Charger v1 is a tiny, simple single-cell LiPo/Li-Ion charger based on the MCP73831 chip. Plug in USB for power, connect your 3.7V battery via JST, and it charges safely with automatic termination. A charging LED indicates status.
LiPo charger comparison
| Charger | Charge rate | Input | Features |
|---|---|---|---|
| Adafruit Micro Lipo v1 (this) | 100mA / 500mA | Mini USB | Simple, tiny |
| Micro Lipo MicroUSB | 100mA / 500mA | Micro USB | Same but MicroUSB |
| TP4056 | 1A | Micro USB | Budget, protection option |
| USB/DC/Solar Charger v2 | 500mA | USB, DC, Solar | Triple input, load sharing |
Technical specifications
| Chip | MCP73831 |
|---|---|
| Input | Mini USB |
| Charge rate | 100mA or 500mA (selectable) |
| Battery connector | JST-PH 2-pin |
| Indicator | Charging LED |
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.
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