If you missed them:
Step #1: Voltage limiter from 12 to 5 V
Step #2: NE555 timer for servo control
Step #3: Problem solving with oscilloscope
With the circuits working I had to proceed with the next phase - integration in the car panel.
So the idea is to use the center console air vents from my car. Since I don't use these vents, I decided to sacrifice them in the name of my project.
I took out the center part witch consisted of three separate parts. The best thing with these vents is that they are cylindrical, so they can be rolled 180 degrees.
At first I took the vent system apart:
I had to modify these vents, so they could turn fully around. With a bit of pliers, knife and drill I got rid of small things that didn't allow the vents to move around.
