I recently tore apart my old laptop and scavenged a few parts from it, namely a fingerprint scanner and a synaptics touchpad which I want to use with my raspberry pi.
All are 4 wire devices so assuming them to be serial devices, I am planning to order Serial to USB converter chips.
However it seems there are quite a few options on the chips available.
I don't need any control signals to interact with my devices so either will work for me.
Is there any benefit of using one over the other?Known issues with a chip maybe?
Also if you have any other chip suggestions , that would be great!