Chhavi is a touch-capacitive, wireless, NFC-enabled fingerprint sensor with ultra low power and high end security capabilities. Chavvi’s open source firmware is fully compatible with Arduino IDE. Featuring Fingerprints’ FPC BM-Lite fingerprint sensor and the incomparable ESP32, Chhavi is simply superior fingerprint sensing hardware, just like the fingerprint sensor in your smartphone. Unlike optical-based fingerprint sensing, which is too large and power hungry, Fingerprints biometric sensor is highly accurate, tiny, and has low-power functionality. During our design process we decided that NFC is a key part of secure access and that there is no majorly available NFC + ESP32 enabled controllers, so we integrated all of this plus a remote capable battery into one tiny little device, Chhavi. A WiFi + BLE/BT + USB + Fingerprint sensing + NFC integrated + battery capable module.
Chhavi is useful in a number of fingerprint sensor applications, especially considering its wireless, remote low power and NFC capabilities. Chhavi is perfect for PC security, such as password managers or local authentications, as well as battery-based remote systems, a wide variety of locking systems and even attendance/personnel management systems, just to name a few.