I could use some guidance:
I have a laser that I want to be able to turn on/off using a camera intervalometer to trigger it. I imagine that the intervalometer would produce the signal to trigger an electromagnetic relay, and that relay would be connected to the power supply of my laser to turn it on/off. Using an intervalometer would allow me to program the frequency that the laser is triggered on/off, as well as how long the laser stays on when triggered.
My Neewer Intervalometer ( https://www.amazon.com/Neewer-Shutter-Release-Remote-Control/dp/B003Q9RERY ) has a stereo (3 pole) 2.5 mm jack plug. I connected my multimeter to the jack in between the tip (shutter release) and the ground (base sleeve). When the intervalometer is trying to trigger a camera to fire, the voltage reads 0.2v. When the intervalometer is not trying to trigger a camera to fire, the voltage reads 0.8v.
What kind of a circuit do I need to build so that my intervalometer can trigger a relay? I know that I cannot directly power a relay using the very low voltage coming out of the intervalometer’s 2.5mm jack plug. I think I need to boost the voltage coming out of the intervalometer’s jack plug, but I am not sure how. Also, while my multimeter is reading 0.2v, I think it is suppose to be 0v when it is trying to trigger a camera to fire (according to Canon cameras). So, I think that I would have to use a Normally Closed Relay, so that when the intervalometer is trying to trigger the camera (or laser) to fire (0v), then the relay allows power to pass into my laser to turn it on.
Any assistance is much appreciated!
I have a laser that I want to be able to turn on/off using a camera intervalometer to trigger it. I imagine that the intervalometer would produce the signal to trigger an electromagnetic relay, and that relay would be connected to the power supply of my laser to turn it on/off. Using an intervalometer would allow me to program the frequency that the laser is triggered on/off, as well as how long the laser stays on when triggered.
My Neewer Intervalometer ( https://www.amazon.com/Neewer-Shutter-Release-Remote-Control/dp/B003Q9RERY ) has a stereo (3 pole) 2.5 mm jack plug. I connected my multimeter to the jack in between the tip (shutter release) and the ground (base sleeve). When the intervalometer is trying to trigger a camera to fire, the voltage reads 0.2v. When the intervalometer is not trying to trigger a camera to fire, the voltage reads 0.8v.
What kind of a circuit do I need to build so that my intervalometer can trigger a relay? I know that I cannot directly power a relay using the very low voltage coming out of the intervalometer’s 2.5mm jack plug. I think I need to boost the voltage coming out of the intervalometer’s jack plug, but I am not sure how. Also, while my multimeter is reading 0.2v, I think it is suppose to be 0v when it is trying to trigger a camera to fire (according to Canon cameras). So, I think that I would have to use a Normally Closed Relay, so that when the intervalometer is trying to trigger the camera (or laser) to fire (0v), then the relay allows power to pass into my laser to turn it on.
Any assistance is much appreciated!
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