Maker Pro
Maker Pro

Pc to Relays

sswcharlie

Dec 29, 2009
8
Joined
Dec 29, 2009
Messages
8
Hi

Just thinking at the moment. I would like to use a MS Excel spreadsheet (using vba macros) to turn on/off some relays and/or opto isolators. Without being too complicated. Excel coding ok, but I need some advice on type of to use. There are a lot of circuits using parallel ports but nothing for USB I can find. Also is it possible to use ethernet?
Say with USB would I use a USB/ttl converter?
Futurlec have a mini board for opto isolators that looks ok. https://www.futurlec.com/Mini_Opto_Isolator.shtml

Trying to keep the cost down and complexity.
Thanks
Charles Harris
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,510
Joined
Jan 21, 2010
Messages
25,510
First you need some sort of interface for the relays. if you found a USB device you might be able to write code like this. I'm not certain it will be straightforward.
 
Top