Robot project

master-slave robot arm  or teleoperator, this is one of my oldest project which I was built in 2012, For this simple application I did used NE556 IC to control Servo motors,  It is a dual timer chip and yep brother of very famous chip called NE555,  NE556 dual timer chip, one timer  configured in astable mode and output of it is connected to another timer which is configured in monostable and the pulse width is controlled by simple potentiometer or variable resistor which is connected in monostable circuit(RC network), Monostable output is a control signal further conneted to control terminal of analogue servo motor.

Master_arm (potentiometers as position sensors)  wooden arm

master arm
master arm(potentiometers as position sensors)

Slave_arm with cheap servos

slave arm
slave_arm with servo’s

Control circuit using NE556 dual timer chip and some other passive components

control circuit

master slave robot arm

Video

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