This is a highly integrated, round, capacitive, all-in-one fingerprint sensor module. The module is controlled via UART commands and is easy to use. Its advantages include 360° omnidirectional verif ication, fast verification, high stability and low power consumption. Based on a powerful Cortex processor combined with a high-security commercial fingerprint algorithm, the UART Fingerprint Sensor provides functions such as fingerprint capture, image capture, feature finding, template generation and storage, fingerprint matching, etc. Without any knowledge of the complicated fingerprint algorithm, you only need to send a few UART commands to integrate a new fingerprint.Fingerprint Sensor Features :Commercial fingerprint algorithm, stable performance, fast verification, support fingerprint capture, fingerprint matching, fingerprint image capture,capacitive sensitive recognition, just lightly touch the sensor surface for quick verification.Hardware highly integrated, processor and sensor in one small chip, suitable for small applications.Narrow stainless steel edge, large touch area, supports 360° omnidirectional verification.Allows free input/ output of fingerprint data.Easy communication via UART or USB.Processor goes into sleep mode and wakes up on recognition, thus low power consumption.Includes extensive documentation and examples for Raspberry /STM32 (software on PC, development SDK, tools some in Chinese see Waveshare Wiki).Application examples fingerprint reader:Fingerprint lockSafe deposit box with fingerprintAccess control system with fingerprint scannerDoor locking sy stem with fingerprintComing and going time recordingTechnical details:Operating voltage: 2.7 to 3.3VOperating current: Sleep current: Interface: UARTBa ud rate: 19200 bpsSensor: Semiconductor capacitive sensingImage resolution: 508DpiImage resolution: 192 x 192Image greyscale: 8Sensor size diameter: 15.5mmFingerprint capacity: 500Matching time: False acceptance rate: False rejection rate: Weight: 11.5gScope of delivery:1x Capacitive fingerprint sensor round with UART.1x PH2.0 / XH2.0mm to 1x6Pin Female Dupont Cable 20cm.