Very new here, and very new to raspberry pi, so apologies if this is a dumb question, and double apologies if it's in the wrong place.
I need more UART ports because I need to interface with a handful of external bluetooth modules, similar to an HC-05
I've done a bit of research, and it seems like the best option for me is converting USBs into UARTs, as opposed to the other options, like bit-banging, which seem more advanced than my level.
Most of the posts talk about FTDI, which I found here: https://www.sparkfun.com/products/9718
However, I also found another product, which to me looks similar in function, here: https://www.sparkfun.com/products/12977
Would the second one work as well? I can't tell the second one is actually FTDI, so maybe I'd be sacrificing reliability and signal quality? Also the FTDI one offers 5V and 3.3V, whereas I think this one only offers 3.3V.... I am having a little trouble deciding which voltage I need.
The reviews on the second one are mostly people who needed to communicate with a UART port on a Pi/Arduino. I need to convert the Pi's USB port into a UART port.... though I guess those are probably the same. Based on HC-05 pinouts, I think either 3.3V or 5V would work, but I am unsure about any other differences between the two options that may make one more suited for my needs
Any help would be greatly appreciated!