Re: LF: Windows software to drive a relay at a given time?

[Roger Rehr W3SZ <w3sz@comcast.net>]

Thanks Peter,

Concise and Elegant!

73,

Roger W3SZ

On 4/11/2018 1:03 PM, P. W. Schnoor wrote:
> Hi Chris,
>
> On 11.04.2018 12:16, you wrote:
>> ...
>> Software to close a relay at a given time, perhaps via the serial port?
>> ...
>
> Seven lines of "Python" and a relay circuit connected to com1, RTS-pin:
>
> # import libraries:
> import serial # see https://pythonhosted.org/pyserial/
> import time   # needed for time delay ("sleep()")
>
> # Create a connection object to com1:
> com = serial.Serial('com1', baudrate=9600, bytesize=serial.EIGHTBITS,
> parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=1,
> xonxoff=0, rtscts=0 )
>
> com.setRTS(True)  # CLICK!
>
> time.sleep(60)    # Wait 60 sec. or whatever
>
> com.setRTS(False) # CLACK!
>
> com.close()
> # END
>
> Use the standard system tool "Windows Task Scheduler" to run it at a
> given time. I did not check it on Windows, but on Linux (device name
> changed and using cron) it works driving an old rtty-relay
> ("Kleinpolrelais") from Siemens directly.
>
> Peter, df3lp
>