I'm looking for a device with at least two UARTs expose. I understand the S3 has three UARTs but I can't tell if these can be muxed to any of the additional pins.
The M5stack docs seems to suggest only one of the ports supports UART. However the datasheet suggests you can pin mux any signal to any pin, so I presume I can break out the uart to any pin/ports on the m5stack S3 devices.
For example, the CoreS3 could have 2 UARTs broken out onto any two of the ports A, B or C. Is this true?
Is there any limitation on the software stacks in exposing the uarts?