Author Topic: Alternative for servo on the $50 robot  (Read 4217 times)

0 Members and 1 Guest are viewing this topic.

Offline ikennaTopic starter

  • Beginner
  • *
  • Posts: 3
  • Helpful? 0
Alternative for servo on the $50 robot
« on: December 03, 2009, 05:24:19 PM »
Pls is there anybody out there who knows any alternative for servos cos i can't find any servos around. I am thinking of using DC motors but I have no idea on how to connect it to the MCU and i am not sure of the exact type of DC motor in terms of voltage capacity. I need to know if anybody have tried it before.
Logged

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,703
  • Helpful? 173
    • Society of Robots
Re: Alternative for servo on the $50 robot
« Reply #1 on: December 03, 2009, 11:11:22 PM »
Logged

Offline GWER57

  • Full Member
  • ***
  • Posts: 65
  • Helpful? 2
Re: Alternative for servo on the $50 robot
« Reply #2 on: December 07, 2009, 08:56:23 AM »
I would highly reccomend using DC motors. They are faster, stronger, cheaper, and more scalable (can be used on large robots as well as small ones).
Just make sure you get a gearhead motor as the gears slow down the motor to a reasonable speed and greatly improve torque.

All you need to control it is an h-bridge which can be made out of a few transistors or you can buy an ic :). You can also buy modules that allow different control methods (serial, analog voltage, pwm) but these tend to cost in the 20 to 50 dollar range. :P
Logged
GTW

Offline chelmi

  • Supreme Robot
  • *****
  • Posts: 496
  • Helpful? 15
    • Current projects
Re: Alternative for servo on the $50 robot
« Reply #3 on: December 07, 2009, 10:34:15 AM »
http://dealextreme.com/ has some servos, shipping is free !
Logged