In this case, pneumatic valves and sensors...

Hi there!

Looking to use an arduino or similar board for some trial&error logic tests in a product we're working on. Problem is, it's an industrial product using 24V signal level, and not 5V. Question is, is there an Arduino or similar out there that work with 24V instead? Is there any ready made arduino shield for working with 24V signals?

I realize I can use voltage dividers or similar on inputs and 5V relays on outputs, but then it's not quite as quick and handy anymore. Any ideas?