Servos

[nomadic]

Servos are High Precision and High torque devices and so they are used in robotics. Actually their movements can be accurately controlled Through Pulse Width. I used a 555 timer for pulse Width But now I need a better PW method. Any suggestions.?

[HarryBotter]

Many microcontrollers have PWM functions built in but even if not, it's pretty easy to set up a little function to generate PWM.

An internet search would give you loads of examples.