I enabled UART1 and 2 in BBB (otherwise it is stock standard, no video attached etc).
I then connected a bluetooth module to UART1, (4 pin) and it worked - I then connected a second module to UART2 (4 pin) and it worked.
Now, when I go back to accessing tty on UART1, I get nothing - no response. I have swapped devices, and UART2 always remains accessible, UART1 never responds.
Any ideas why this would just stop working?
What commands do I use to check & switch the muxing for pin?
Thanks