STM32 interfacing with FingerPrint module through USB

[Sahil_96]

Hello, I have a device that uses an STM32 microcontroller and has a USB port. I am attempting to create a secure access system for this device using a fingerprint module. My question is whether I can connect any fingerprint module to the device through the USB port and create a fingerprint lock system. Additionally, I am unsure about the process of connecting a fingerprint sensor to a device running a Real-Time Operating System (RTOS).

[TDK]

Theoretically, yes, it is possible to connect a non-standard USB device by using the USB in host mode. However, you likely won't find a pre-build example of this and will have to implement the low level USB details yourself, provided those details are even available. It's not going to be as simple as installing drivers as you would do on a PC.

Note that "fingerprint device" is not a standard USB device like CDC, HID, or MSC.