Hi, I'm s machine vision developer with little knowledge of electronics.
So I turn to anyone out there that may point me in the right direction.
Here's my problem.
I have a TTL output from my IO card providing trig to a laser. The laser is not allowed to be active longer than approx. 5ms. Now I want to make sure that if the IO output doesn't go low, a sort of watchdog will force it low after 5ms.
A watchdog is not really what I want since I'd like to avoid a "keep alive" toggling signal. I've read something about the time delay relays but my lack of knowledge makes me uncertain if that's the way.
What kind of electronics am I looking for?
Basically a device that will forward my TTL for maximum 5ms. It should be a "one shot" approach so the next time my TTL goes from low to high the same procedure is followed. Hope it makes any sense.
BR
Jongas
So I turn to anyone out there that may point me in the right direction.
Here's my problem.
I have a TTL output from my IO card providing trig to a laser. The laser is not allowed to be active longer than approx. 5ms. Now I want to make sure that if the IO output doesn't go low, a sort of watchdog will force it low after 5ms.
A watchdog is not really what I want since I'd like to avoid a "keep alive" toggling signal. I've read something about the time delay relays but my lack of knowledge makes me uncertain if that's the way.
What kind of electronics am I looking for?
Basically a device that will forward my TTL for maximum 5ms. It should be a "one shot" approach so the next time my TTL goes from low to high the same procedure is followed. Hope it makes any sense.
BR
Jongas