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Topic: distance sensor to midi cc (Read 805 times) previous topic - next topic

suddendie

hi.. i have to traduce tension or current (from the out of a distance sensor) to a midi signal.
i have to control a program's parahm as a fader on ableton whit a distance sensor..
anyone can tell me how can i do this???

AWOL

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

suddendie

what is??? i don't know how to use arduino.. i need someone that can drive me step by step...or do it for me.. or someone that can tell me where to buy it...

AWOL

Up there on the left is a link called 'Main Site.
There you'll find a reference section explaining the 'map' function, and the rest of the Arduino language
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

suddendie

ok.. I've read map.. but i don't find anywhere which signal receive the analog imput of arduino...

AWOL

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

suddendie

ok thanx a lot!! so.. now.. once i've mapped my signal to a value from 0 to 255 how can i convert it in a sequential 8 bit number(like the midi)??

AWOL

0..255 is an eight bit number
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

suddendie

sure.. but.. i have to send that value to a midi instrument... like an ableton fader...

AWOL

#9
Oct 30, 2011, 10:01 pm Last Edit: Oct 30, 2011, 10:04 pm by AWOL Reason: 1
Did you look at any of the MIDI references over at the Playground?
http://arduino.cc/playground/Main/InterfacingWithHardware#Communication
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

suddendie

i don't speech a good english so.. i didn't find anything about it...

suddendie

#11
Oct 31, 2011, 04:09 am Last Edit: Oct 31, 2011, 08:38 am by AWOL Reason: 1
do you know if this code help me??



Code: [Select]
// by Tubedogg 12/2006; fabian at tubedogg.de

//This program reads up to 6 analog sensors / potentiometers ans converts the data to Midi-Controller messages
// define Switchpin:
#define switchPin 10
//  define LED:
#define LEDpin 13

// Variables

// define variables for the controller data
int AnalogValue[6] = {0,0,0,0,0,0};    

// define the "lastValue" variables
int lastAnalogValue[6] = {0,0,0,0,0,0};
 
// select the midi Controller Number for each input
int midiCCselect[6] = {1,2,3,4,5,6};

// select threshold for each analog input  
int thresh[6] = {1,1,1,1,1,1};  

// select number of desired analog inputs (max 6)
int input_no = 6;

void setup() {
//  set the states of the I/O pins:
pinMode(switchPin, INPUT);
pinMode(LEDpin, OUTPUT);
//  Set MIDI baud rate:
Serial.begin(31250);

}

// main program loop
void loop() {

for(int i=0;i<input_no;i++){

        AnalogValue[i] = (analogRead(i))/8;    // read the value from the analog input and divide by 8 for range 0-127
    // check if value is greater than defined threshold (good for resistive touchpads etc)
    if ( AnalogValue [i]>thresh[i] ) {
          // check if analog input has changed
          if ( AnalogValue[i] != lastAnalogValue[i] ) {

          //send control change on cc#i
          midiCC(0xB0, midiCCselect[i], AnalogValue[i]);
          // update lastAnalogValue variable
          lastAnalogValue[i] = AnalogValue[i];

          //End if
          }
      //End if
    }
 
 
//End for
}


//End Loop
}



// This function sends a Midi CC.
void midiCC(char CC_data, char c_num, char c_val){
Serial.print(CC_data, BYTE);
Serial.print(c_num, BYTE);
Serial.print(c_val, BYTE);

}



Moderator edit: Reposted, sans italics.


AWOL

Quote
do you know if this code help me??

Only you can answer that question.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

yan_g


do you know if this code help me??

it's well commented, seems like crystal clear code

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