Hi there,
I am completely new to electronics so I apologize for my severe lack of knowledge.
I am currently trying to build a MIDI controller that works via USB. The unit consists of 13 potentiometers, 42 momentary buttons and the hard part; either 74 single color LEDs or 10 single color and 32 RGB.
At first I was looking at the Arduino Mega 2560; it has 16 analogue input pins (fine for 13 potentiometers) and 54 digital I/O pins (fine for 42 buttons) but that only leaves me with 12 pins for all the LEDs
Does anyone have any idea how I could achieve this?
I was wondering whether something like this: http://www.makershed.com/LoL_shield_for_Arduino_p/mkjr3.htm could be modified to give me just 74 LEDs and enough inputs left for the buttons?
or maybe this: http://iteadstudio.com/store/index.php?main_page=product_info&cPath=18&products_id=312 could work with RGB LEDs?
Here is a rough picture of what I intend to make, the large buttons are the ones I want 2+ colors for and the top ones only need one.
As a complete novice I could just barking up the wrong tree? either way I would really appreciate some insight!
Thanks
I am completely new to electronics so I apologize for my severe lack of knowledge.
I am currently trying to build a MIDI controller that works via USB. The unit consists of 13 potentiometers, 42 momentary buttons and the hard part; either 74 single color LEDs or 10 single color and 32 RGB.
At first I was looking at the Arduino Mega 2560; it has 16 analogue input pins (fine for 13 potentiometers) and 54 digital I/O pins (fine for 42 buttons) but that only leaves me with 12 pins for all the LEDs
Does anyone have any idea how I could achieve this?
I was wondering whether something like this: http://www.makershed.com/LoL_shield_for_Arduino_p/mkjr3.htm could be modified to give me just 74 LEDs and enough inputs left for the buttons?
or maybe this: http://iteadstudio.com/store/index.php?main_page=product_info&cPath=18&products_id=312 could work with RGB LEDs?
Here is a rough picture of what I intend to make, the large buttons are the ones I want 2+ colors for and the top ones only need one.
As a complete novice I could just barking up the wrong tree? either way I would really appreciate some insight!
Thanks