Arduino Sound Controller:

• Got the amplifier working.  There were a couple wiring problems, need to look at the diagram better next time.
• Used oscillator chip to test the amplifier.  Speakers seem to peak out much lower then advertised.  Oscillator frequencies may not work as well as actual sounds since this is a speaker as opposed to a buzzer.
• HIGH_SIGNAL(high resistance) may be out of range.  Does not seem to be consistent when I decrease the Volume.
• Step speed is good.  It should not be a problem to send it varying step commands quickly during collisions.
• Will try it with the SOMO tomorrow.