Neutron Mozzimod arduino synth module input/output nmspecs.txt

input/output--------------------------------------------------------------------------------------


live inputs				1 audio rate CV (MOZZI), attenuverted, level shifted, then clamp protected.
					2 protected gate/trigers, can be used as outputs if required

analog control inputs			up to 8 multiplexed analog controls from potentiometers. 
					these must be powered from the internal 5v power supply

digital i/o				8 pins, usually used for front panel, these can be used for toggle switches, 
					hex rotary switches, gate outputs, drive LEDs or anything else an arduino can do. 
					(for now, if used with LEDs, external resistors are needed, but i am contemplating
					putting them on board. the 220 ohms will not bother digital i/o and can be jumpered
					if not needed. not reccomended for input from synth without protection circuit.

output					main output is 14 bit via MOZZI library and precision resistors.
					attenuverted, level shifted to +-10v for your own scketches without MOZZI, you can
					use PWM pin 9 and/or 10. 

LED output				Dedicated LED output for a PWM controlled LED.


Arduino-------------------------------------------------------------------------------

programming				There are a few ways to get your program in to the atmega 328 IC.

ftdi cable:				the board has the header for the FTDI cable/adapter so you can just program the IC if it has an arduino bootloader
					(328 pre loaded with arduino bootloader are avaliable from adafruit and probably others)

your arduino				program in your arduino and then swap the chip (make sure its an arduino uno with DIP IC)

buy a pre programmed 328		you could buy a chip pre programmed with something like "AHDBDSR envelope" or "complex LFO" or whatever 
					others might come up with there will be a charge for the service but the actual sketch will be public domain.
					others are free to offer pre programmed ICs as well as long as their program is also public.

					In my case each program will come with suggested panel design for 5u and euro, and any changes to the standard
					build that might be needed.

more to come. placeholder.