3 Point Switch

Hi,

I have a remote witch I want to control with my arduino.
The pinout is shown in the picture below.

If you want to set 1 ON you must connect:
1-ON-GND together

If you want to set 1 OFF you must connect:
1-OFF-GND together

If you want to set 2 ON you must connect:
1-ON-GND together

etc.

Can someone tell me how I can do this?
Thanks!

It is running of a 12V mini battery. The current I don't know.
I tried transistors but it would take 12 of them. So thought maybe you guys know a better solution?

I have a remote witch I want to control with my arduino.

We need more information, for example do you need to control the witch herself or just the broom?


Rob

Thanks! I will order the transistor soon.
And Rob, English isn't my native tongue.
Cheers!