I have a project at my university. I want to control a laser with arduino uno. Specifically, i want to control the force of the laser and i want to run and stop the laser. I checked the wiring diagram and it says that i have to send 1 to 10 volt at 14 pin for force control. Also, i have to send a square pulse signal (5 usec duration) at pin 9 and 10 with 8 - 15 volt amplitude for run and stop.
So i created a Digital to analog converter to obtain analog values and an non inverting op amp with gain 2 to reach 10 volt. This circuit is for force control. For run and stop, i send a digital high output pulse from arduino to an non inverting op amp with gain 2 to reach 10 volt amplitude. I connected these circuits to the corresponding pins of the laser but nothing happened.
What should i do? Thank you in advance.