ZW0642 Capacitive Fingerprint Module Overview A compact, performance capacitive fingerprint module designed for embedded systems, access control, and user authentication. The module combines a capacitive sensor and an onboard fingerprint processing chip for reliable image capture, feature extraction, matching, and template storage. Key benefits Accurate and reliable recognition: false recognition rate less than 0.001 percent and rejection rate less than or equal to 3 percent for dependable authentication. Compact footprint: small module diameter and a focused 8 x 8 mm sensing area make it easy to integrate into handheld devices, panels, and custom housings. Fast, lowpower operation: quick image capture and template processing with low standby current for batterypowered applications. Simple integration: standard TTL UART interface and a 1.0 mm x 6pin horizontal connector for straightforward connection to microcontrollers and development boards. Onboard storage and processing: supports fingerprint image processing, template extraction, template matching, fingerprint search, and template storage without external servers. Technical specifications Model: ZW0642 Module size: diameter approximately 14.0 mm Functional (sensing) area: 8 x 8 mm Resolution: 160 x 160 pixels, 508 DPI Sensor type: capacitive, racketshaped sensing module Fingerprint library capacity: 100 templates Interface protocol: TTL serial port (UART) Default UART settings: 57600 bps, 1 start bit, 8 data bits, no parity, 1 stop bit, 3.3 V TTL level Interface connector: 1.0 mm x 6pin horizontal connector Comparison mode: 1 to N Image capture time: approximately 155 ms Feature extraction time (eigenvalue generation): approximately 220 ms Matching time: approximately 180 ms Power on to ready time: approximately 100 ms Standby current: approximately 10 uA Operating current (algorithm MCU): approximately 25 mA ESD tolerance: nondischarge approximately 15 kV, discharge approximately 8 kV Storage temperature and humidity: 40 C to +85 C; 45% to 95% RH Operating temperature and humidity: 30 C to +70 C; 45% to 85% RH Material: PCB Color: as shown Package contents: 1 x fingerprint module Functions and performance Supports fingerprint image processing, template extraction, template matching, fingerprint search, and template storage on the module. integration improves product stability and consistency and reduces external processing requirements. Designed for reliability with a low false acceptance rate and fast response times. Typical applications Access control panels and electronic locks where compact, reliable fingerprint authentication is required. Embedded devices and IoT hardware for user identification and secure device unlock. Time and attendance terminals, kiosks, or point of systems that need local fingerprint verification. Notes Package includes only the fingerprint module. Color in the product photo may differ slightly from the actual item due to lighting and display differences. Measurement tolerance is plus or minus 1 to 3 cm.