555 timer IC: Controlling a servomotor with 3 buttons

11.11.24

Circuits

This circuit is made in SimulIDE.

I'm using the 555 timer IC and 3 buttons to control the servomotor. In the circuit I've added a "Frequency meter", so it's easier to adjust the resistors. For the center position, I had to use a 21650 Ohm resistor. I couldn't find that anywhere, so I used two standard resistorvalues.

In this schematic, the "Up" button is pressed.

In this image the "Center" button is pressed:

In the last image, the "Down" button is pressed.

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