Interfacing Nrf52810 with fingerprint sensor module

[rohit]

Hello everyone, 
I am planning to use the nrf52840 with the Fingerprint module (https://www.amazon.in/dp/B07DL2DXJX/ref=cm_sw_r_wa_apa_i_Z.VlCbXSSYVRS ). The sensor interfaces via UART to nRF52840. Has anyone worked on Fingerprint module and successfully interfaced these two chips?

Do you see any potential issues I could face? 
It would be of great help if anyone shares the driver files

I can't find any document related to this.

Please share any link we have,

Thanks,

Rohit,

[ovrebekk]

Hi

Both the baudrate and the supply voltage listed can be supported by the nRF52840, so I don't foresee any issues connecting this sensor.

I can't be 100% sure without seeing the full specification, but unless it uses an atypical UART configuration (like 2 stop bits, or a parity setting that we don't support) it should work fine. 

Did you mean to make this case public, so that the community could also provide input?
There is no official Nordic driver for this sensor, but there might be someone else somewhere that have implemented code for it. 

Best regards
Torbjørn

[rohit]

@Torbjørn Øvrebekk thanks for your suggestion,

please make it public thread and please be with me for driver implementation,

let me know which example code is supporting for this application from your SDK peripheral,

I am using sdk15.2.

[rohit]

ovrebekk

rohit said:

let me know which example code is supporting for this application from your SDK peripheral,

I am using sdk15.2.

[awneil]

As it's a UART interface, start with the UART examples!

They will show you how to configure the UART, and how to manage sending bytes to it, and receiving bytes from it.

That is the only part that is specific to Nordic.

Remember that the sensor neither knows nor cares what microcontroller you use - so, once you've correctly configured the UART, and managed sending & receiving bytes, there is nothing specific to Nordic.

rohit said:

I can't find any document related to this.

You will need the documentation for the sensor - that will tell you what to send to it, and what it will send back to you.