The Fingerprint Recognition Module with Capacitive Sensor is powered by STM32F105 CPU and features a Semiconductor (capacitive) sensor with a module dimension of 45 x 30 mm and a sensor dimension of 33.4 x 20.4 mm. The module has an image DPI of 508 and an image resolution of 192 x 256. The sensing area of the module is 9.6 x 12.8 mm. The module has a fingerprint capacity of 1000 (expandable) and a security level of 0-9, with 5 being the default. The matching time of the module is 1 second, and the false acceptance rate is 0.00%, while the false rejection rate is 0.01%. The module has dynamic current of <40mA and operates at a voltage of 3.3V-5V. The module supports dual communication through UART or USB and has anti-electrostatic aerial discharge of 15KV and contact discharge of 8KV. Features Easy to use by some simple commands, you don't have to know any fingerprint technology, or the module inter structure/calculation Commercial fingerprinting algorithm, stable performance, fast verification Sensitive detection, just touch the collecting window lightly, without pressing Allows to freely input/output fingerprint images, fingerprint feature file and other fingerprinting actions Dual communication, UART or USB Processor will enter sleep and wake up when detecting, achieves low power consumption Comes with rich related resources (software on PC, development SDK, tools, and examples for Raspberry/Arduino/STM32) Package Content Capacitive Fingerprint Reader x1 PH2.0 wire 20cm 6Pin x1 Development Resources Wiki : www.waveshare.com/wiki/Capacitive_Fingerprint_Reader Dimension FAQs: Q: What is the maximum number of fingerprints that the Waveshare Capacitive Fingerprint Reader can store? A: The fingerprint reader can store up to 1000 fingerprints, which can be expanded if needed. Q: What communication interfaces does the fingerprint reader support? A: The fingerprint reader supports dual communication through both UART and USB interfaces. Q: What is the accuracy and speed of fingerprint matching? A: The fingerprint reader has a matching time of 1 second with a false acceptance rate of 0.00% and a false rejection rate of 0.01%. Q: What is the power consumption of the fingerprint reader? A: The dynamic current consumption of the fingerprint reader is less than 40mA. It also has a sleep mode to reduce power consumption when not in use. Q: What software and resources are available for developing applications with the fingerprint reader? A: Waveshare provides rich resources for development, including PC software, SDK, tools, and examples for Raspberry Pi, Arduino, and STM32.