servo Protractor (SG90)

An angle meter using SG90 servo. It is used as a mark when aligning the center with a 1500 micro PWM wave. It's hard to control with software unless it's set at 1500 micro so that it shows the center. The servo keeps the center position in a safe position.

If you want a transparent plate, use the SVG file to laser cut.

Video: https://www.youtube.com/watch?v=8MMjD1RJMpM
Video: https://www.youtube.com/watch?v=Vxf_1HU8PlQ

https://denshiman.com/sg90.html