I have only been doing electronics for a year now and am new to this site. I need some help with a circuit I am putting in my Halloween costume this year.Please help me fill in some blanks for me. I need a circuit in which there are four push buttons, one leading to each of the fowloing: one button activates a white LED, a second one activates a circuit that makes 15 green LEDs fade in and out, another push button activates 4 red LEDs that also fade in and out, the final button activates a sound recording. Can someon please deveop a circuit and give me the schematic? I also have these questions:
1. will green and red LEDs shine through a thin black cloth?
2. How do you make a small voice recorder?
3. How much in-put voltage will the circuit need?
4. Is there anything the circuit is missing?
5. How much is this going to cost me!?!?
Any suggestions are welcome.