Søren Søndergaard

Looks pretty similar to the AS5304T, so it's probably the 4-pin header labeled SIO UART on AS5304T. One of the two middle pins is `GND`, so at least one pin...

As far as I can tell UART (J4) uses other signal levels than RS-232, so it's probably not a good idea to connect directly to the PC COM port. On...

Hitting all the F keys and Delete key in sequence (I don't know which one did the trick) during boot I managed to get into a boot screen*: Hitting Escape...

> However instead of using a RS232 to UART TTL adaptor, it might be easier just to get an FTDI USB to UART TTL cable such as [this 3.3V UART...