Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: zdoll11 on October 06, 2010, 07:29:10 PM

Title: what microcontroller?
Post by: zdoll11 on October 06, 2010, 07:29:10 PM

i've built a quadrupedal robot with 4 servos and 4 linear actuators, with 2 actuators for turning; i need to know what microcontroller can deliever 12V DC to all servos and motors.  Thank you for you time.

Zeb

Title: Re: what microcontroller?
Post by: Soeren on October 06, 2010, 08:20:50 PM

Hi,

Quote from: zdoll11 on October 06, 2010, 07:29:10 PM

i need to know what microcontroller can deliever 12V DC to all servos and motors.

None.
You need interface circuitry, like transistors (either in singles or arrays), to get the low voltage of the µcontroller to control 12V equipment.
Most R/C-servos needs between 4.8V and 6.0V and will not like 12V.

Title: Re: what microcontroller?
Post by: zdoll11 on October 06, 2010, 08:29:23 PM

can this circuitry be purchased.  i only need 7.2V for my servos, but my actuators need 12V.  perhaps you can give me an idea of what i need as far as microcontroller and other circuitry.