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Software => Software => Topic started by: Roboteccan on November 12, 2010, 01:03:25 PM

Title: how regulate voltage in axon microcontroller?
Post by: Roboteccan on November 12, 2010, 01:03:25 PM

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.

Title: Re: how regulate voltage in axon microcontroller?
Post by: rbtying on November 12, 2010, 02:55:36 PM

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?

Title: Re: how regulate voltage in axon microcontroller?
Post by: Admin on November 14, 2010, 05:36:41 PM

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

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

Title: Re: how regulate voltage in axon microcontroller?
Post by: Roboteccan on November 24, 2010, 11:33:03 AM

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

Title: Re: how regulate voltage in axon microcontroller?
Post by: Admin on November 24, 2010, 01:38:27 PM

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.