so I have a 5V DC controlled relay that I can use on my Arduino with a single pin - no trouble with that. But I want to use the relay in something else, which is waay too simple so it's not really worth getting an arduino for that.
I would like to control the "in" pin on the relay without any microcontrollers. Is there a way to do it? If I'm not mistaken if the pin is HIGH the voltage on it is 5V, am I right with that?
So, is there a way to control the data pins without a microcontroller... IF the pin is 5V while it's HIGH the best way to do it would be to connect a 5V supply to the IN pin.. or is it more complex than that?
Thanks in advance.