Subject: Re: rs232-controller switches
To: Manuel Bouyer <>
From: Jukka Marin <>
List: netbsd-users
Date: 05/21/2003 21:11:13
On Wed, May 21, 2003 at 08:05:13PM +0200, Manuel Bouyer wrote:
> I'm planning on building a 8-port power supply switch controlled by RS232.
> Has someone some schematics for this ? Or just some chips refenrences
> for UART would be a start.
> I guess I need a UART which presents the data on a 8 output pins.
> A bidirectionnal UART would be nice, so that the state of the switches can be
> reported back to the host (in case it reboots, etc ...)

You could do this with something like a PIC microcontroller (PIC16F628,
for example).  It has one UART and up to 14 I/O pins.

I used a PIC as a watchdog for the Soekris box.