Learn how to setup a 555 Timer chip in order to control a servo motor using 2 buttons

This is a 555 timer in Astable mode which can control a single Servo motor (90+-) using 2 buttons. The circuit is essentially the same as the POT driven one only instead of the POT 2 buttons are used with fixed resistor values.

To learn more about the 555 Timer Click Here

Below you will find the circuit schematics and list of parts for this setup, and also a video showing step by step how to build the circuit on breadboard.

555_2button_servo_driver.PNG

Components list:

1 x LM555 IC1

1 x 47KΩ Resistor R1

1 x 100KΩ Resistor R2

1 x 3.3MΩ Resistor R3

1 x 1N4148 Diode D1

1 x 22nF Capacitor C1

1 x 0.1uF Capacitor C2

2 x NO Buttons

1 x Servo Motor S

 

Step by step video guide on how to build the circuit according to the schematic above