Making noise with Arduino Help*

Projects Programming
1

I'm trying to make noise with an audio transducer and I don't know how to make more than one tone.

Is there anyway I can make more than a single tone play, or have something like the sound of a doctor who sonic screwdriver noise play?

Thank you

2

Is the audio device that you are using active (apply a voltage and it makes a tone) or passive (needs a changing voltage applied to make a tone)

A link to the device would help

3

It's active, just needs 5v to start operating

4

Then you cannot control the frequency of the output. You need a passive output device

5

...or an active device, like an MP3 player.

6

How would I do it with a passive device?

7

Have a look at the tone reference page.