Servo help

Projects General Guidance
1

Hi,
As i have seen on other posts, i too am a newb with the UNO. I am trying to set up 2 servos to run off of a button, i have the code that should work but nothing is happening when i hit the button to activate the servos. I am going to ask a stupid question but no one else will answer this for me and all the hobby shops around me say "what is an arduino", so here goes. the code i am using has the servos plugged into the digital ports 9 and 10. Does this mean that i need a digital servo? The one i am trying is analog. I just want to check this is what i need before spending a lot of money for the digital servos that i need. The code has been used and is good but mine does nothing, i have tried replacing the button 3 times.

if someone could point me in the right direction i would appreciate it,i did search and found some rather confusing info. I am trying to learn what to do.
i do apologize if this has been discussed before and i missed it, it is not my intention to re-ask questions that have already been answered multiple times.

Thank you,
Moshrover

2

Does this mean that i need a digital servo? The one i am trying is analog

Analog's cool.... you don't need a digital one.

3

Doesnt Servo need seperate motor drivers ? Like l298 or L293 or so?

4

xkishorx:
Doesnt Servo need seperate motor drivers ? Like l298 or L293 or so?

No, servos need a power supply to their red and black, and control via the yellow lead from an Arduino pin; Arduino sketch uses the servo library. All is explained here. Power supply to servo should not be from Arduino 5V, not even for one servo, in spite of what it says there...

5

Jimbo,
Thank you for the reply, i now have two of the analog servos. I still have the problem of the button not activating the sequence. I have rewired the board 3 times (according to the pics of the setup that works), and have tried 3 different buttons. The desired result is one button push, servos rotate and LEDs shut off, second push the servos rotate in the opposite direction and the LEDs light up. I am not sure what i am doing wrong here, is there a firmware update for the UNO i might try? I do believe the sketch to work (as someone else says it does) but i am getting nothing when i push the button.

I am trying to do my homework and figure out the answer, but i am getting frustrated and maybe need some direction from others that know more than i.

Thanks,
E-

6

according to the pics of the setup that works

I do believe the sketch to work

.... but we can see neither the pics nor the sketch so we can't really advise until you post those.

7

I am not sure what i am doing wrong here,

Most probably you have bad code, bad wiring, or both. You need to post your code, and somehow show the wiring you are using.

8

Start with one servo and a simple example. Does that work??

Try this: http://arduino-info.wikispaces.com/YourDuinoStarter_ServoSweep

Servo info on the http://ArduinoInfo.Info WIKI here: http://arduino-info.wikispaces.com/Servos