[cctalk] Re: Inline Serial Device?

On Fri, Nov 11, 2022 at 4:46 PM Bill Gunshannon via cctalk <cctalk(a)classiccmp.org> wrote: That sounds like exactly the kind of company they used to be :P I just wanted to mention that back when we did POS systems, we had cash drawers that were operated off of an RS232 port not by looking at the data stream but simply by triggering off the DTR line. The drawer contained basically a capacitor and a solenoid. So if you have control over the serial port on the "commanding" end, that sort of thing can be an option for triggering physical devices. G.