servo Protractor (SG90)
thingiverse
An angle meter employing a SG90 servo is used to mark the center when aligning with a 1500 micro PWM wave. It's difficult to control using software unless it's set at 1500 micro, where it displays the center accurately. The servo maintains the center position in a secure state. If you require a transparent plate, use the SVG file to create a laser-cut design. Video links: https://www.youtube.com/watch?v=8MMjD1RJMpM https://www.youtube.com/watch?v=Vxf_1HU8PlQ https://denshiman.com/sg90.html
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