I am studying all available resources of RaspBerry PI3, for full use, and after extensive research on UART, I find myself very confused! there are two UARTs on RPI3, mini UART and UART (PL011)! What I do not understand is that in my research I find that the UART is floundering on the pins 8 and 10! and other say that it is the mini UART that is flickering on pins 8 and 10!
What I do know is that the Bluetooth is on the same pins as the UART (PL011), and for activating one of them! you have to disable the other one.
My questions are:
- What is the difference between the UART (PL011) and the mini UART?
- Which pins do they use?
- Can we use them at the same time?
For example, I have a GPS that I have to connect to the RPI, this one does not use parity and the data conveyed of which of 8 bits max, and I would like to add an RS485 link for another use,
- Can I use the mini UART for GPS and PL011 for the RS-485 link?