Hello everyone, I would like ask whether is it possible to use Arduino to ON and OFF laser control system As seen in the data sheet. However, it is mentioned of 24VDC input which I am not sure how overcome the problem being the Arduino only support lower voltage. Is there a solution for this?
Sure, you just need NPN transistor for that.
HI, @raju01
Welcome to the forum.
Can you please tell us your electronics, programming, arduino, hardware experience?
Thanks.. Tom.... 
Which Arduino?
There are dozens of them
My electronics are arduino UNO SMD, Relay switch. I was using Omron PLC had some setbacks due to inability to run stepper motor. So, now looking into other options to control my overall project. I am a newbie in these area
My project involves using both laser controller and stepper motors ( With DM542 drivers).
Intially, I thought of using output from PLC to relay and relay as input to arduino which upon receiving signal, arduinno outputs pulse to stepper motor. But problem being PLC operates at 24V
So, now looking into option of Arduino UNO to control the whole project. Might also upgrade to MEGA
Is there any references or Youtube videos I can refer for this?
Is LASER safety a concern?
How is the controller powered?
How is the Uno powered?
You can find lot of tutorials online
Search for "NPN transistor as a switch"
Circuit could be something like this:
Not safety one but whether it is compatible with my arduino.
The controller is powered by single-phase power supply 230V.
For external I/O controller, 24VDC power supply used
Arduino UNO powered by usb attached to laptop.
Really!
You don't care if the LASER should come on when you are not expecting it to?
Apologies I do care. I didn't understand the question earlier. It must a smooth and sequential operation. Thank you highlighting
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