I am totally new to Arduino and is planning to learn how to control motors
with Arduino.
I need it in a project where I am going to build 2x shutters for 2x projectors, that can block the light from the projectors when I want it to be black.
The projectors and Arduino with the motors will be placed 30 meters from my MacbookPro.
So I need to be able to control the Arduino and motors wirelessly.
Could somebody tell me what I need to be able to control 2 seperate motors from a Arduino wirelessly?
You have several options to bridge the 30 meters from your notebook to the projector. Usually the easiest in this situation is to use WiFi because in most cases the notebook has already built in a WiFi module so you just need hardware on the remote side. If you even use a web server on the projector side (running on the Arduino) you even don't need any special software on your notebook, just a web browser. There are cheaper variants but based on your description I would suggest this solution.
To give you more hints you need to describe a little bit more details. What kind of motors are you planning to use? How do you plan to wire them, what's the planned power source?
I plan on using two stepper motors that has enough torque to rotate the Blackwrap (thick, black thin foil)
that will block the light from the projectors.
The projectors and the Arduino will be plugged into a standard (north european) power socket above the stage.
The two stepper motors will be fastened on top of each projector. The distance between the two projectors is 10 meters. So the Arduino must be placed inbetween them, and the stepper motors will then need to have a 5 meter long cable from the arduino.
To communicate via Wifi sounds very doable, and I have acess to a fast wifi in the theatre.
Have you checked if a servo is not powerful enough to move your blackwraps? They are easier to handle and you don't need end switches and the like, no motor driver, just a power source able to give enough current and one Arduino pin per servo.
Be aware that have large areas of 'thick, black thin foil' near your Arduino could affect radio reception in the area, so be sure to test it in a realistic environment before you get too far.
Ok! I will test the possible interference in good time when I have a set up ready.
I read about servomotors, and yes I think this will do just fine. And I think I´ll be good with a standard servo.
But the servos must be able to rotate 90 degrees back and forth on command.
So what I need is: Arduino, 2 x servomotors and a module for Wifi (must reach at least 30-40 m) ?
Thank you so much for the help! I´m a bit on my alone here
So what I need is: Arduino, 2 x servomotors and a module for Wifi (must reach at least 30-40 m) ?
Correct, a simple one as the UNO will do. Standard servo motors cover 180 degrees and more. Keep in mind that for the WiFi range the distance to the access point is relevant and not the distance to your notebook. But without many walls in between 40m shouldn't be a problem for a problem for a WiFi module with a real antenna (not a PCB one).
