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Re: serial console




On 31/7/25 08:48, Steve Dondley wrote:
serial console/ parallel is likely me not understanding terminology.
These Raspberry Pis, Arduinos with the connection with all the pins, what protocol is that expecting?
mick
I’ve only played with arduino once and never a Raspberry pi (I think it has a ton of different ports) and it probably depends on the model. So I can’t be of much help there.

How many pins does it have? If it’s a 9 pin arranged in two rows then it’s definitely a serial port. If it’s got 15 pins in three rows it’s probably a vga serial port for the monitor.

The Pi has a 40 pin Header for most I/O not involving a  camera or display. It does not have any RS-232 connectors.

On the 40 pin header, pins 6,8,10 perform the UART function at TTL levels which an external card can then convert to RS-232 or whatever format is desired.


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