I followed tutorials and doesn't have problems while setting up Arduino Yun.I can see the slider on the target picture, but when I move it, led on Arduino Yun don't light up.
@ilyarmnzhdn welcome to the forum!
This must be a problem with the code in your arduino program or js file that sends slider value. check the names of objects etc.
thanks, I solved this problem
@ilyarmnzhdn What was the issue ?