thirdprize

I have a little sound generator project i have brought and managed to put together.

Wow, thanks for all the suggestions. just to recap though ... 1)If i put a 3.3v regulator/relay before the 3Amp kit I can power them off the same source. Whats the proper name for these things, just so i know what to get. 2)If i did the above thing then i could control them with the same switch, as they would both accept the same current thing. If not, then get a 2 pole switch that would control both circuits. cheers. Shaun

I have built two little kits I got from maplins. One has a 9v battery and the other has 2xAAA batteries. The 9v one is a sound generator and and the other drives a couple of little motors. I would like to control them both with the same on/off switch. Could i wire them both into the same switch or would the differing power sources cause problems? Could i piggy back one off the others power supply? Any suggestions? Shaun

I suppose I would also like to be able to control the speed of the motor and the volume/pitch of the noise. The two are not related though. On/off switch would be nice as well. I see your projects page has a few motor sine wave projects on it. I should be able to string a couple of them together shouldn't I? How would I get a random fluctuating pitch for my noise?

Having had a play with a soldering iron at the weekend and managed to (correctly) wire some portable speakers into a little "sound to light" electronics kit, i want to get a bit more adventurous.