Midi Controller Circuit Using Arduino

Other Hardware Audio
1

Hi,

I want to make midi controller using with arduino uno. I need an only a potentiometers for controling a softwares buttons.

I need a few potentiometers for controlling a buttons on softwares.

it's possible?

I prepare an image file, what i want to do?

Thanks

2

Are these software pots controlled by a CC from MIDI input ?

3

You seem to have pots wired up to digital inputs. They need wiring up to analogue inputs.

4

yes al1_24 i want to controlling the buttons on software using a potentiometers for manuel control.

and

yes Grumpy Mikei in research and i know the analog inputs but image is an only an example. i prepared qucikly :slight_smile:

work a one potentiometer, it's enough for me now.

i try to develop. but i have not an enough information using midi and potentiometer with arduino.

thanks

5

yes Grumpy Mikei in research and i know the analog inputs but image is an only an example. i prepared qucikly

I find that most odd. Why did you deliberately post something that you knew was wrong? Do you send a radio station a demo of "Follow the yellow brick road" and say but I really going to play "Dark side of the moon"?

You can not use pots on a digital input. You have to use the pots on an analogue input and then in the software write the code that sets the CC message to on or off depending on if the reading of the pot is greater or less than 512.

but i have not an enough information using midi and potentiometer with arduino.

Google is good.
Third hit was:-
http://www.ecs.umass.edu/ece/m5/tutorials/MIDI_out_analog_in_tutorial.html

6

You could use a pot. With the wiper voltage below 1.5V (5V system), it'd be read as 0.
With the wiper above 3V (5v system), it'd be read as 1.
1.5 to 3V, might be 0, might be 1.

7

Better would be to use an external 8-channel ADC such as MCP3208. 12 bit resolution, easy to read via SPI.
http://www.digikey.com/product-search/en/integrated-circuits-ics/data-acquisition-analog-to-digital-converters-adc/2556291?k=mcp3208
Can get really fast external ADCs also

8

firstly thanks for all for everything.

CrossRoads

you suggest me a use another cpu ?
am i wrong?

arduino is my hobby. i haven't an enough information about.
especially midi and audio.

i don't want a play audio etc.
i want only controlling software buttons using potentiometer.

thanks again.

9

What you are trying to do is certainly possible. You will need to accomplish the following:

Setup Arduino to register as a USB MIDI device in your DAW.

Wire your pot into analog port.

Convert analog value (0-254?) to midi value (1-127).

Transmit midi value as midi CC via USB.

You should be able to find articles and even Arduino project examples for each of these tasks.