Can anyone tell me which pins on the bottom of this BASIC stamp i connect a pwm wire into in order to connect it to the servo controller underneath it
Phil,
To be safe you should check the parallax web site…
Essentially all of the pins marked P# are available as inputs or outputs and so are eligible to be used for PWM outputs. I am not sure which servo controller you are using but typically they require a serial out line to the the controller. Again, any of the pins marked P# are available. You then use SEROUT to send the command to the servo controller. Check the documentation that came with your servo controller.
Check this thread for more info.