Fingerprint Development of Dedicated Identification Module for Arduino Optical Fingerprint Sensor

Working principle: Fingerprint processing includes two processes: fingerprint registration process and fingerprint matching process (fingerprint matching which is divided into fingerprint matching (1: 1) and fingerprint search (1: N) in two ways]. When the fingerprint is registered, entry twice for each fingerprint, and processed the image, composite template is stored in the module. Fingerprint matching, through the fingerprint sensor, entry the fingerprint image and processing, and then matching comparison with the module fingerprint template (if it is matched a template specified in the module, known as fingerprint matching, that is 1: 1 mode. If it is matched with multiple templates, it is called fingerprint search mode (1: N mode). The module gives the result of matching (pass or fail). Feature: Profile: 256 bytes Template file: 512 bytes Power supply voltage: DC 5V Operating current: <120mA P eak current: <130mA Fingerprint image input time: <0.5 seconds Window area: 18.5 mm x 14.6 mm Matching mode (1: 1) Search method (1: N) Storage capacity: 200 pieces Security level: Five (from low to high: 1,2,3,4,5) system default 3 FAR: <0.001% (security level is 3) Rejection rate (FRR): <1.0% (security level 3) Search time: <1.0 seconds (1: 500 average) Resolution: 500ppi Host computer interface: UART (TTL logic level) Communication baud rate (UART): (9600XN) bps Where N = 1 ~ 6 (default value N = 6, namely 57600bps) Temperature: -25 °C to +55 °C Relative humidity: 40% RH-85% RH (no condensation) Storage temperature: -40 °C to +85 °C Relative humidity: <90% H (no condensation) Optical module (C3) overall dimensions (L × W × H): 47.65mm x 20.50mm x 21.20mm Capacitive module dimensions: Main control board (L × W × H): 35mm x 28mm x 7mm Sensors (L × W): 33.4mm x 20.4mm

• Fingerprint Development of Dedicated Identification Module For Arduino Optical Fingerprint Sensor