The AS-108M fingerprint sensor module consists of HF-108 fingerprint sensor and MCU stalled with algorithm mainly. The module provides one UART interface output port for connecting to a main board of device.



The operation processes of AS-108M’s sensor (HF-108) are as follows, a fingerprint image captured by pixel array, delivery fingerprint ridge/valley signals to A/D converter and digital processor, then to the serial peripheral interface for data-reading. Because MCU has been already installed with fingerprint algorithm, the user can use MCU SOC commands through UART interface for operating module, such as fingerprint enrollment, fingerprint match etc.