RS232 Relay
From Leo's Notes
This page was last edited on 2 June 2017, at 23:40.
There is this RS232 Relay with 'www.iorelay.com' printed on the PCB.
I believe the manual for it is this: https://s3.amazonaws.com/assets.controlanything.com/manuals/R2X.PDF
On Linux, turning it off and on:
# stty -F /dev/ttyS0 9600
# while true ; do echo -e "\xFE\x01" > /dev/ttyS0 ; sleep 1 ; echo -e "\xFE\x00" > /dev/ttyS0 ; sleep 1 ; done