Hello!
I set out to create something like a stopwatch / timer.
I have a laser beam that shines on a photo-resistor. In repose Arduino sends a "READY" message to COM-port. Data every 1ms. When overlapping photo-resistor Arduino sends "START" message.
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"START" // Photo-resistor closed - go start the stopwatch
"START" // Superfluous operation, it requires a certain delay to 5 seconds.
"START" // Superfluous operation, it requires a certain delay to 5 seconds.
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"READY" // laser light onto the photo-resistor
"START" // Photo-resistor blocked - Stop stopwatch
"START" // Superfluous operation, it requires a certain delay to 5 seconds
I found a good program http://www.xnotestopwatch.com/
The beauty of it is that it starts the stopwatch not only through clicks or hot-keys, but also through the buttons/sensors via COM-port:
The question is: how can you emulate the READY / START data, such as RTS / CTS signal from the COM-port?
PS: On the main page of the project - something similar to what I want to do.
In fact, the hard part is ready, the program too, it remains only to make friends data than passes Arduino with this program.
(sorry for bad English. I hope you got what I meant:)