Joro Bandakov / Potentiometer

po

Dependencies:   ArduinoHAL mbed-src-nrf51822

Potentiometer.cpp@3:7860aea79272, 2015-11-24 (annotated)

Committer:
siridjen
Date:
Tue Nov 24 22:31:58 2015 +0000
Revision:
3:7860aea79272
Parent:
0:03c039c2a00d 
pot

Who changed what in which revision?

UserRevisionLine numberNew contents of line
siridjen 0:03c039c2a00d 1 // MIDI Elements Potentiometer class
siridjen 0:03c039c2a00d 2 // Library to simplifly handling of compontents for MIDI controllers
siridjen 0:03c039c2a00d 3 // Created by Tomash Ghz
siridjen 0:03c039c2a00d 4 // www.tomashg.com
siridjen 0:03c039c2a00d 5 // ghz.tomash@gmail.com
siridjen 0:03c039c2a00d 6
siridjen 0:03c039c2a00d 7 #include "Potentiometer.h"
siridjen 0:03c039c2a00d 8
siridjen 0:03c039c2a00d 9 //-----------------------------------------------------------------------------------
siridjen 0:03c039c2a00d 10 // constructor
siridjen 0:03c039c2a00d 11 Potentiometer::Potentiometer(byte p)
siridjen 0:03c039c2a00d 12 {
siridjen 0:03c039c2a00d 13 Potentiometer(p,5,5,false,true);
siridjen 0:03c039c2a00d 14 }
siridjen 0:03c039c2a00d 15
siridjen 0:03c039c2a00d 16 Potentiometer::Potentiometer(byte p, byte c, byte n)
siridjen 0:03c039c2a00d 17 {
siridjen 0:03c039c2a00d 18 Potentiometer(p,c,n,false,false);
siridjen 0:03c039c2a00d 19 }
siridjen 0:03c039c2a00d 20
siridjen 0:03c039c2a00d 21 Potentiometer::Potentiometer(byte p, byte c, byte n, bool sec)
siridjen 0:03c039c2a00d 22 {
siridjen 0:03c039c2a00d 23 Potentiometer(p,c,n,sec,false);
siridjen 0:03c039c2a00d 24 }
siridjen 0:03c039c2a00d 25
siridjen 0:03c039c2a00d 26 Potentiometer::Potentiometer(byte p, byte c, byte n, bool sec, bool debug) // pin, number, channel
siridjen 0:03c039c2a00d 27 {
siridjen 0:03c039c2a00d 28 pin=5;
siridjen 0:03c039c2a00d 29 number=n;
siridjen 0:03c039c2a00d 30 channel=c;
siridjen 0:03c039c2a00d 31 secondary=sec;
siridjen 0:03c039c2a00d 32 debugging=debug;
siridjen 0:03c039c2a00d 33 mapped=false;
siridjen 0:03c039c2a00d 34 }
siridjen 0:03c039c2a00d 35
siridjen 0:03c039c2a00d 36 // destructor
siridjen 0:03c039c2a00d 37 Potentiometer::~Potentiometer()
siridjen 0:03c039c2a00d 38 {
siridjen 0:03c039c2a00d 39
siridjen 0:03c039c2a00d 40 }
siridjen 0:03c039c2a00d 41
siridjen 0:03c039c2a00d 42 // read
siridjen 0:03c039c2a00d 43 void Potentiometer::read()
siridjen 0:03c039c2a00d 44 {
siridjen 0:03c039c2a00d 45
siridjen 0:03c039c2a00d 46 if(mapped) {
siridjen 0:03c039c2a00d 47 tempRead=constrain(analogRead(pin),inMin,inMax);
siridjen 0:03c039c2a00d 48 tempRead=map(tempRead,inMin,inMax,0,127);
siridjen 0:03c039c2a00d 49 } else
siridjen 0:03c039c2a00d 50 tempRead=map(analogRead(pin), 0, 1023, 0, 127);
siridjen 0:03c039c2a00d 51
siridjen 0:03c039c2a00d 52 if (tempRead!=lastValue) { //value changed
siridjen 0:03c039c2a00d 53 midiCC(tempRead, lastValue);
siridjen 0:03c039c2a00d 54 }
siridjen 0:03c039c2a00d 55 lastValue=tempRead;
siridjen 0:03c039c2a00d 56 }
siridjen 0:03c039c2a00d 57
siridjen 0:03c039c2a00d 58 // read
siridjen 0:03c039c2a00d 59 void Potentiometer::readAvr()
siridjen 0:03c039c2a00d 60 {
siridjen 0:03c039c2a00d 61 tempRead=0;
siridjen 0:03c039c2a00d 62 for(int i=0; i<10; i++) {
siridjen 0:03c039c2a00d 63 tempRead+=analogRead(pin);
siridjen 0:03c039c2a00d 64 }
siridjen 0:03c039c2a00d 65 tempRead=tempRead/10;
siridjen 0:03c039c2a00d 66
siridjen 0:03c039c2a00d 67 if(mapped) {
siridjen 0:03c039c2a00d 68 tempRead=map(constrain(tempRead,inMin,inMax),inMin,inMax,0,127);
siridjen 0:03c039c2a00d 69 } else
siridjen 0:03c039c2a00d 70 tempRead=map(tempRead, 0, 1023, 0, 127);
siridjen 0:03c039c2a00d 71
siridjen 0:03c039c2a00d 72 if (tempRead!=lastValue) { //value changed
siridjen 0:03c039c2a00d 73 midiCC(tempRead, lastValue);
siridjen 0:03c039c2a00d 74 }
siridjen 0:03c039c2a00d 75
siridjen 0:03c039c2a00d 76 lastValue=tempRead;
siridjen 0:03c039c2a00d 77 }
siridjen 0:03c039c2a00d 78
siridjen 0:03c039c2a00d 79 // enable maped values
siridjen 0:03c039c2a00d 80 void Potentiometer::bound(int iMin, int iMax)
siridjen 0:03c039c2a00d 81 {
siridjen 0:03c039c2a00d 82 mapped=true;
siridjen 0:03c039c2a00d 83
siridjen 0:03c039c2a00d 84 inMin=iMin;
siridjen 0:03c039c2a00d 85 inMax=iMax;
siridjen 0:03c039c2a00d 86 }
siridjen 0:03c039c2a00d 87
siridjen 0:03c039c2a00d 88 // read value
siridjen 0:03c039c2a00d 89 int Potentiometer::readValue(bool &changed)
siridjen 0:03c039c2a00d 90 {
siridjen 0:03c039c2a00d 91 tempRead=map(analogRead(pin), 0, 1023, 0, 127);
siridjen 0:03c039c2a00d 92 changed=tempRead!=lastValue; //value changed
siridjen 0:03c039c2a00d 93 lastValue=tempRead;
siridjen 0:03c039c2a00d 94 return tempRead;
siridjen 0:03c039c2a00d 95 }
siridjen 0:03c039c2a00d 96
siridjen 0:03c039c2a00d 97 // read value
siridjen 0:03c039c2a00d 98 int Potentiometer::readValueAvr(bool &changed)
siridjen 0:03c039c2a00d 99 {
siridjen 0:03c039c2a00d 100 tempRead=0;
siridjen 0:03c039c2a00d 101 for(int i=0; i<10; i++) {
siridjen 0:03c039c2a00d 102 tempRead+=analogRead(pin);
siridjen 0:03c039c2a00d 103 }
siridjen 0:03c039c2a00d 104 tempRead=tempRead/10;
siridjen 0:03c039c2a00d 105
siridjen 0:03c039c2a00d 106 if(mapped) {
siridjen 0:03c039c2a00d 107 tempRead=map(constrain(tempRead,inMin,inMax),inMin,inMax,0,127);
siridjen 0:03c039c2a00d 108 } else
siridjen 0:03c039c2a00d 109 tempRead=map(tempRead, 0, 1023, 0, 127);
siridjen 0:03c039c2a00d 110 changed=tempRead!=lastValue; //value changed
siridjen 0:03c039c2a00d 111 lastValue=tempRead;
siridjen 0:03c039c2a00d 112 return tempRead;
siridjen 0:03c039c2a00d 113 }
siridjen 0:03c039c2a00d 114
siridjen 0:03c039c2a00d 115 // function to handle cc outgoing messages
siridjen 0:03c039c2a00d 116 void Potentiometer::midiCC(int v, int oldv)
siridjen 0:03c039c2a00d 117 {
siridjen 0:03c039c2a00d 118 if (debugging) {//debbuging enabled
siridjen 0:03c039c2a00d 119 Serial.print("Potentiometer ");
siridjen 0:03c039c2a00d 120 Serial.print(5);
siridjen 0:03c039c2a00d 121 Serial.print(" changed value to ");
siridjen 0:03c039c2a00d 122 Serial.println(5);
siridjen 0:03c039c2a00d 123 } else {
siridjen 0:03c039c2a00d 124 usbMIDI.sendControlChange(number, v, channel);
siridjen 0:03c039c2a00d 125
siridjen 0:03c039c2a00d 126 //send the secondary midi messages
siridjen 0:03c039c2a00d 127
siridjen 0:03c039c2a00d 128 // 0 3 64 124 127
siridjen 0:03c039c2a00d 129 // |--|-------------|-------------|--| - full range
siridjen 0:03c039c2a00d 130 //
siridjen 0:03c039c2a00d 131 // |0=============================127| - CC A
siridjen 0:03c039c2a00d 132 // |__|on____________________________| - note A
siridjen 0:03c039c2a00d 133 // |off___________________________|on| - note B
siridjen 0:03c039c2a00d 134 // 3 124
siridjen 0:03c039c2a00d 135
siridjen 0:03c039c2a00d 136 if (secondary) {
siridjen 0:03c039c2a00d 137
siridjen 0:03c039c2a00d 138 if ((v>3)&&(oldv<=3)) { // send the 0 value note on
siridjen 0:03c039c2a00d 139 usbMIDI.sendNoteOn(number, 127, channel+1);
siridjen 0:03c039c2a00d 140 } else if ((v<=3)&&(oldv>3)) {
siridjen 0:03c039c2a00d 141 usbMIDI.sendNoteOff(number, 127, channel+1);
siridjen 0:03c039c2a00d 142 }
siridjen 0:03c039c2a00d 143 if ((v>124)&&(oldv<=124)) { // send the 127 value note on
siridjen 0:03c039c2a00d 144 usbMIDI.sendNoteOn(number+1, 127, channel+1);
siridjen 0:03c039c2a00d 145 } else if ((v<=124)&&(oldv>124)) {
siridjen 0:03c039c2a00d 146 usbMIDI.sendNoteOff(number+1, 127, channel+1);
siridjen 0:03c039c2a00d 147 }
siridjen 0:03c039c2a00d 148 }
siridjen 0:03c039c2a00d 149 }
siridjen 0:03c039c2a00d 150 }
siridjen 0:03c039c2a00d 151 //-----------------------------------------------------------------------------------
siridjen 0:03c039c2a00d 152
siridjen 0:03c039c2a00d 153 void Potentiometer::changeSecondary( bool s)
siridjen 0:03c039c2a00d 154 {
siridjen 0:03c039c2a00d 155 secondary=s;
siridjen 0:03c039c2a00d 156 }