100018754 Fingerprints

Doc number: Doc revision: Doc state: Date: 100020596 18.1 Approved 09/Jul/2021 Doc class: Page: Specification 1(63) BM-Lite Product Specification & Integration Guideline All information contained within this document is proprietary to Fingerprint Cards AB.Doc number: Doc revision: Doc state: Date: 100020596 18.1 Approved 09/Jul/2021 Doc class: Page: Specification 2(63) Contents 1 Overview.................................................................................................6 1.1 General Description .........................................................................................................6 1.2 Technical Features BM-Lite...........................................................................................7 1.3 Technical Features BM-Lite sensor ...............................................................................7 2 Functional Description............................................................................8 2.1 Operation.........................................................................................................................8 2.2 Fingerprint Sensor ...........................................................................................................8 2.3 Performance Characteristics............................................................................................9 2.4 Verification Times ..........................................................................................................10 2.5 Enrollment .....................................................................................................................10 2.6 Expected lifetime ...........................................................................................................10 3 Signal List ..............................................................................................10 4 Electrical Characteristics.......................................................................11 4.1 Supply Voltage ...............................................................................................................11 4.2 Supply Current ...............................................................................................................11 4.3 Current Consumption graph ..........................................................................................12 4.4 Digital Inputs..................................................................................................................12 4.5 Digital Outputs...............................................................................................................12 5 Software Command Interface...............................................................13 5.1 UART Serial Interface Settings .......................................................................................13 5.2 SPI Interface Settings .....................................................................................................13 5.3 Command Send Structure..............................................................................................14 5.4 Frame format.................................................................................................................17 5.5 Runtime modes..............................................................................................................18 5.6 Example usage - Biometric functions.............................................................................19 5.7 Example usage - Sensor operations ...............................................................................22 6 Command Tables ..................................................................................23 6.1 Biometric Commands ....................................................................................................23 7 Command Descriptions.........................................................................23 7.1 Capture ..........................................................................................................................23 7.2 Enroll..............................................................................................................................23 7.3 Identify...........................................................................................................................24 7.4 Info.................................................................................................................................24 7.5 Image .............................................................................................................................25 All information contained within this document is proprietary to Fingerprint Cards AB.