how regulate voltage in axon microcontroller?

[Roboteccan]

hi I need regulate 5,2.5 and 0 voltages in axon microcontroller, because I have a motor DC controller that you put 5v and the motor DC turn to left, when you put 2.5v the motor DC is stop, when you put 0v(off)turn right, then I need regulate signals in the pins from axon microcontroller for I controller those motor.

[rbtying]

What you really mean is how to output an analog voltage.  The easiest method is to use PWM:  a 100% duty cycle is 5v, a 50% duty cycle is 2.5v, a 0% duty cycle is 0v.  It's proportional, so take a look at the documentation.  Are you using webbotlib or the original avrlib?

[Admin]

Can you link us to the DC motor controller you are using?

That just sounds very odd of a way to control a motor . . .

[Roboteccan]

this is the link http://www.dimensionengineering.com/datasheets/Sabertooth2x10.pdf
watch the Mode 1: Analog Input

[Admin]

In that case, the proper way would be to use either the RC or serial mode. You don't want to use the analog method.