UART Rx buffer event callback?

[Smeedy]

Hi there,

Is there a clean way to define a callback whenever there's an event on the Rx buffer (like UART_DATA or UART_FIFO_OVF as in the ESP32 IDF) ? I could do something with a Timer.alarm callback which checks periodically for a change in uart.any(), but I was looking for something more substantially.

Thanks,
Martijn