Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: Cycloned on December 30, 2009, 10:20:24 AM

Title: Motors - Servos or DC?
Post by: Cycloned on December 30, 2009, 10:20:24 AM

I don't know whether to choose between servos or DC motors. I want one that you just plug in without any programming. I read that servos don't require programming, but isn't it necessary for them to be controlled by joystick?

Title: Re: Motors - Servos or DC?
Post by: z.s.tar.gz on December 30, 2009, 11:57:49 AM

Servos do not need programming to be used by joysticks, although you'll need a controller for them.

Title: Re: Motors - Servos or DC?
Post by: SmAsH on December 30, 2009, 05:12:57 PM

Quote from: z.s.tar.gz on December 30, 2009, 11:57:49 AM

Servos do not need programming to be used by joysticks, although you'll need a controller for them.

So your telling me if i go get my $50 board, plug in a joystick and a servo it will go?
Everything needs programming, servos and dc motors are similar, servos have their control circuitry on board whereas motors need external circuitry.
Servos don't need a joystick, i have no idea where you got that from...
Read some of the tutorials on the main site, really... It will help.

Title: Re: Motors - Servos or DC?
Post by: z.s.tar.gz on December 30, 2009, 05:52:54 PM

I said they don't need programming, not that you don't need a program. In fact I think I did say you needed a controller...

Anyways, you could make a simple circuit with dc motors for your joystick if you want, but other than that you're going to need a MCU.

Title: Re: Motors - Servos or DC?
Post by: Cycloned on December 31, 2009, 01:07:26 AM

I am going to make a super simple thing.....

2 motors and a battery attached to a receiver which can be controlled by the transmitter.

Now will this require any programming?

Title: Re: Motors - Servos or DC?
Post by: Joker94 on December 31, 2009, 02:10:13 AM

so by the sounds of it you can just use a r/c radio set for your purposes.

With this you can use  servos by plugging them into the reciever and controlling them with the transmitter box.

and you can use motors with a simple h-bridge circuit.

i am talking of a simple rc radio system like this. you just have to chose how many channels you want, servos or motors you want to control.

and they range from cheap to expensive.

http://images.google.com.au/imgres?imgurl=http://www.hooked-on-rc-airplanes.com/images/rc-radio-system.jpg&imgrefurl=http://www.hooked-on-rc-airplanes.com/rc-airplane-radio.html&usg=__HLCwiomF4bEslQtsErp_yLkL9cs=&h=592&w=1500&sz=79&hl=en&start=1&sig2=aCkSYsseCsHAPeYJZDqTVA&um=1&tbnid=zq60zCuz7IG8UM:&tbnh=59&tbnw=150&prev=/images%3Fq%3Drc%2Bradio%2Bsystems%26hl%3Den%26rlz%3D1T4GGIE_enAU342AU346%26sa%3DN%26um%3D1&ei=EFw8S5OwMIGC7QP43dyvAQ (http://images.google.com.au/imgres?imgurl=http://www.hooked-on-rc-airplanes.com/images/rc-radio-system.jpg&imgrefurl=http://www.hooked-on-rc-airplanes.com/rc-airplane-radio.html&usg=__HLCwiomF4bEslQtsErp_yLkL9cs=&h=592&w=1500&sz=79&hl=en&start=1&sig2=aCkSYsseCsHAPeYJZDqTVA&um=1&tbnid=zq60zCuz7IG8UM:&tbnh=59&tbnw=150&prev=/images%3Fq%3Drc%2Bradio%2Bsystems%26hl%3Den%26rlz%3D1T4GGIE_enAU342AU346%26sa%3DN%26um%3D1&ei=EFw8S5OwMIGC7QP43dyvAQ)

Title: Re: Motors - Servos or DC?
Post by: Cycloned on December 31, 2009, 04:37:59 AM

http://robokits.co.in/shop/index.php?main_page=product_info&cPath=7&products_id=203 (http://robokits.co.in/shop/index.php?main_page=product_info&cPath=7&products_id=203)

I was thinking of using that. Since it is just plug n play, it wouldn't require any programming, right?

Title: Re: Motors - Servos or DC?
Post by: Joker94 on December 31, 2009, 05:16:21 AM

Well it said you just have to hook up a battery and motors.

there for it sounds like it will work for you. But wait for comfermation though(some on to comfirm my theory).

Good Luck

Joker94

Title: Re: Motors - Servos or DC?
Post by: SmAsH on December 31, 2009, 05:29:21 AM

Yup, no programming for that ;D

Title: Re: Motors - Servos or DC?
Post by: Joker94 on December 31, 2009, 05:39:02 AM

Thats what i thought just didn't want him to get the wrong thing.  :D

Title: Re: Motors - Servos or DC?
Post by: Cycloned on December 31, 2009, 06:13:53 AM

Haha thanks so much guys  :D  :D  :D  :D