Manual

UART Fingerprint Sensor (C)
V1.0 www.waveshare.com 4 / 18
HARDWARE
DIMENSION
INTERFACE
Note: The color of actual wires may be different with the image. According to the PIN when
connecting but not the color.
⚫ VIN: 3.3V
⚫ GND: Ground
⚫ RX: Serial data input (TTL)
⚫ TX: Serial data output (TTL)
⚫ RST: Power enable/disable Pin
◼ HIGH: Power enable
◼ LOW: Power disable (Sleep Mode)
⚫ WAKE: Wake up pin. When module is in
sleep mode, WKAE pin is HIGH when touch
sensor with finger.