This video explains how ultrasonic fingerprint readers work and why they are considered better than optical sensors. It compares the two technologies, highlighting the advantages of ultrasonic readers, such as their ability to work even when fingers are wet or greasy. The video also discusses the limitations of ultrasonic readers, such as their compatibility with only flexible OLED displays.
88077 5 лет назад 2:49This video tests the fingerprint scanner on the Motorola Edge 30. The video shows how to set up a fingerprint and then attempts to unlock the device using the fingerprint. The video emphasizes the importance of holding the finger on the scanner for a while to ensure a successful unlock.
3738 2 года назад 1:31This video showcases two versions of a fingerprint scanner, the GT-521Fx2, which uses an optical sensor to capture fingerprints and an ARM Cortex-M3 to analyze them. The video demonstrates how to connect the scanner to a microcontroller and how to enroll fingerprints. It also highlights the scanner's ability to identify fingerprints and determine if a fingerprint is in its database.
41706 6 лет назад 2:10