using HMC5833L and servo motor

Projects General Guidance
1

Hello ,
I have a working compass that show me the azimuth using HMC833L to a 7 segment display

what I want to do now is - to rotate him to which angle I want
this is what I'm thinking -
when I press a switch
I'm entering to "write" mode
I'm entering 155 in the serial monitor and the servo is moving the HMC833L until he get to this result.

my questions are:

  1. what kind of servo do I need for this?(I'm using Arduino R3 with Ethernet)
  2. do I need something else beside the motor ?
  3. it is possible to do this right? ,

Thanks,

2
  1. what kind of servo do I need for this?

One that can rotate to the range of values that you want to enter. Note that 360 degree servos are expensive. (Not to be confused with continuous rotation servos which are not servos).

  1. do I need something else beside the motor ?

A switch. A power supply for the servo. Some wires.

  1. it is possible to do this right? ,

I'm guessing that the USB cable is going to get in the way at some point. If not, yes it is possible.

3

1.can you show me 1 example of this king of servo?
is this one can do the job? - http://www.4project.co.il/documents/doc_2767_2643.pdf

2.every thing you said is obvious - but thanks

3.I want to see how to make it turn to my angle , after I will see it's working -I will use a matrix keypad

if you just can please tell me about the servo motor
Thanks ,

4

That is not a servo. Google "sail winch servo" Standard servos usually only turn 0 to around 180 degrees. The winch servos turn more like 0 to 720 degrees.

5

this I didn't know

2 questions now -

  1. if I only need one that can rotate 180 degrees -can I use this :http://www.4project.co.il/documents/doc_487_2808.pdf
    2.and for the 720 - can I take this ?(also do you know if sparkfun or someone known sell this kind? )
    Sail Winch Servo 55g Metal Gears 10.63kg Torque 6 Turns Travel for sale online | eBay
    I can see it can rotate up to 720

Thanks ,