Code MPX16 Sequencer<\/h2>\n\n\n\n\n\n\n\/\/ E.Heinemann\n\/\/ e.heinemann@hman-project.de\n\/\/ 30.10.2016 - E.Heinemann Bonn Germany\n\/\/ 2021-02-07 - E.Heinemann Updated and modified the MIDI-Note-Numbers and their names to map it to the MPX16-Defaults\n\/\/ 2021-02-07 - E.Heinemann, new attempt to combine Menu-Button as a DN-Button with the Step-Buttons\n\n\/\/ Helping sources:\n\/\/ https:\/\/learn.sparkfun.com\/tutorials\/midi-shield-hookup-guide\/example-1-clock-generator--receiver\n\n#include <Wire.h>\n#include <MIDI.h>\n#include <LiquidCrystal_I2C.h>\n\n\/\/ http:\/\/www.86duino.com\/?p=8254\n#include \"TimerOne.h\"\n\n\/\/ http:\/\/playground.arduino.cc\/Main\/MsTimer2\n\/\/ #in clude <MsTimer2.h>\n\n\/\/ other interesting Project:\n\/\/ http:\/\/skagmo.com\n\/\/ https:\/\/www.youtube.com\/watch?v=q9LyRmzGL5g\n\/\/ https:\/\/github.com\/Catmacey\/DrumMachine\n\n\n\/\/ Projects to build the Drum-Synths\n\/\/ http:\/\/dmitry.gr\/index.php?r=05.Projects&proj=02.%20Single-chip%20audio%20Player\n\/\/ http:\/\/www.enide.net\/webcms\/index.php?page=pcm2pwm\n\/\/ Coron DS7 http:\/\/m.bareille.free.fr\/ds7clone\/ds7.htm\n\/\/ http:\/\/electro-music.com\/forum\/phpbb-files\/dr_55_rimshot_clone_196.pdf\n\/\/ Monotribe schematic\n\/\/ Boss DR110 Scheamtics\n\/\/ http:\/\/www.sdiy.org\/richardc64\/new_drums\/dr110\/dr110a1.html\n\/\/ http:\/\/www.freeinfosociety.com\/electronics\/schemview.php?id=129\n\/\/ http:\/\/www.sdiy.org\/richardc64\/new_drums\/dr110\/clap_etc.html\n\/\/ Good example of needed sounds: http:\/\/delptronics.com\/ldb2e.php\n\/\/ http:\/\/pdp7.org\/boss_dr_sync\/bossdr110.html\n\/\/ http:\/\/www.theninhotline.net\/dr110\/\n\n\/\/ Pi Zero as SamplePlayer\n\/\/ https:\/\/www.raspberrypi.org\/forums\/viewtopic.php?f=38&t=127585\n\n\/\/ Mozzi-based Drum\n\/\/ https:\/\/github.com\/fakebitpolytechnic\/cheapsynth\/blob\/master\/Mozzi_drumsDG0_0_2BETA\/Mozzi_drumsDG0_0_2BETA.ino\n\n\/*\n * MPX16 receives on Channel 1 but sends on Channel 10 !\n * Midi-Notes of the 16 Samples by default:\n * 40 41 42 43 | 48 49 50 51 \n * 36 37 38 39 | 44 45 46 47\n * \n * Simply Samples from Midi 36 to 51\n * \n *\/ \n\n\n#include <EEPROM.h>\n\n\n\n\/\/ Softserial is used to send MIDI via Pin TX 2, RX 3 \n#include <SoftwareSerial.h>\nSoftwareSerial softSerial( 2, 3 );\nMIDI_CREATE_INSTANCE( SoftwareSerial, softSerial, midiA );\n\n\n\/\/ #define NBR_INST 16\n\/\/ #define NBR_PATTERN 16\n\/\/ #define NBR_MIDI_CH 10\n\n\/\/Midi message define\n\/\/ #define MIDI_START 0xfa\n\/\/ #define MIDI_STOP 0xfc\n\/\/ #define MIDI_CLOCK 0xf8\n\n\/\/ Not implemented yet\nuint16_t bpm = 125; \/\/ Default BPM\nuint16_t old_bpm = bpm; \/\/ Default BPM\n\nuint8_t midi_channel = 1; \/\/ Default Midi Channel\nuint8_t midi_sync = 0; \/\/ 1 == Slave, 0 = Master - default\n\nuint8_t LCD_Address = 0x27; \/\/ LCD is integrated via PCF8574 on Port 0x27\nLiquidCrystal_I2C lcd( LCD_Address, 16, 2 ); \/\/ simple LCD with 16x2\n\nuint8_t address1 = 0x3C; \/\/ Address of the PCF8574 for first 8 Buttons and LEDs\nuint8_t address2 = 0x38; \/\/ Address of the second PCF for LEDS & Buttons 9 - 16\n\n\/\/ Button-Pins\nconst int buttonPinS = 4; \/\/ Menu\/FN\/Select-Button ..near to the POT\nconst int buttonPinL = 5; \/\/ Left- or Start-Button\nconst int buttonPinR = 6; \/\/ Right- or Stop-Button\n\n\/\/ Value of the POT\nint aPin3 = 3;\nint aVal3;\nint old_aVal3;\nuint8_t newNote; \/\/ Variable for the MidiNote in the Menu\n\nuint8_t count_step = 0; \/\/ Step counter\nuint8_t count_bars = 16; \/\/ count steps per Pattern, .. with 2 PCF8574, I am able to define 16 Steps max.... virtually perhaps 32....\nuint8_t count_ppqn =- 1; \/\/ 24 MIDI-Clock-Pulse per quart note counter\n\n\/\/ Menu\nString Modes[] = { \"Instr\", \"Velo\", \"Speed\", \"Bars\", \"Note\", \"Scale\", \"Sync\" };\nuint8_t ModesNum[] = { 0, 1, 2, 3 , 4, 5, 6 };\n\n\/\/ Is the Sequencer running or not\nboolean playBeats = true;\n\n\/\/ Current Menu Settings\nuint8_t curModeNum = 0;\nString curMode = Modes[0]; \/\/ Sound or Play\n\n\/\/ Instruments, Accent is not an Instrument but internally handled as an instrument .. therefore 17 Instruments from 0 to 16\nconst String shortSounds[] ={ \"ACC\" , \"PAD 1\", \"PAD 2\" , \"PAD 3\" , \"PAD 4\", \"PAD 5\", \"PAD 6\", \"PAD 7\", \"PAD 8\", \"PAD 9\", \"PAD 10\", \"PAD 11\", \"PAD 12\",\"PAD 13\",\"PAD 14\",\"PAD 15\",\"PAD 16\" };\nconst String Sounds[] ={ \"Accent\", \"PAD 1\", \"PAD 2\" , \"PAD 3\" , \"PAD 4\", \"PAD 5\", \"PAD 6\", \"PAD 7\", \"PAD 8\", \"PAD 9\", \"PAD 10\", \"PAD 11\", \"PAD 12\",\"PAD 13\",\"PAD 14\",\"PAD 15\",\"PAD 16\" };\nuint8_t iSound[] ={ -1, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 }; \/\/ MIDI-Sound, edited via Menu 50=TOM, 44=closed HH, \nuint8_t iVelo[] ={ 127, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90 }; \/\/ Velocity, edited via Menu\nuint8_t inotes1[]={ 255,255,255,255,255,255,255,255,255, 255,255,255,255,255,255,255, 255 };\nuint8_t inotes2[]={ 255,255,255,255,255,255,255,255,255, 255,255,255,255,255,255,255, 255 };\n\n\/\/ Current Instrument .. the first selected\nint curIns = 1; \/\/ 1 = PAD 1, 0= Accent\n\nuint16_t timer_time=5000; \/\/Time in microsecond of the callback fuction\nuint32_t tempo_delay;\n\n\nuint8_t bar_value[]={ 1, 2, 3, 4, 6, 8, 12, 16};\n\n\/\/ array of notes would be better, 2 bytes in notes for every instrument\nuint8_t notes1; \nuint8_t notes2;\n\n\/\/ Old MIDI-Tricks, HH-Sounds first, Cymbals first, Snare, BD at least, ... to keep a tight beat\nuint8_t oldStatus1=B00000000;\nuint8_t oldStatus2=B00000000;\nuint8_t bits1 = 0;\nuint8_t bits2 = 0;\n\n\/\/ Scale, Menu to change Scale is yet not implemented\nuint8_t scale=1 ;\/\/Default scale 1\/16\nuint8_t scale_value[] = { 3, 6, 12, 24, 8, 16 };\nconst String scale_string[] = { \"1\/32\", \"1\/16\", \"1\/8\", \"1\/4\", \"1\/8T\", \"1\/4T\" };\n \n\n\/\/ BPM to MS Conversion\n\/\/ http:\/\/www.sengpielaudio.com\/Rechner-bpmtempotime.htm\n \n\/\/ myRefresh is only a counter .. the higher the lower the BPM! To display a good BPM this value has to be translated\nint myRefresh = 500;\nint myStep = 0;\n\nint veloAccent = 100;\nint velocity = 100;\n\nint step_position = 0;\nint b = 10;\n\nuint8_t count_instr = 00;\n\nboolean oldStateS=1;\nboolean buttonStateS=1;\nboolean oldStateL=1;\nboolean buttonStateL=1;\nboolean oldStateR=1;\nboolean buttonStateR=1;\n\nString curPattern1=\"xxxxxxxxx\";\nString curPattern2=\"xxxxxxxxx\";\n\n\/\/ ### Base-Function for PCF8574 and WIRE ### \n\/\/ PCF8574 Explosion Demo (using same pin for Input AND Output)\n\/\/ Hari Wiguna, 2016\nvoid WriteIo( uint8_t bits,uint8_t thisAddress ){\n Wire.beginTransmission(thisAddress);\n Wire.write(bits);\n Wire.endTransmission();\n}\n\n\/\/ ### Base-Function for PCF8574 and WIRE ### \n\/\/ PCF8574 Explosion Demo (using same pin for Input AND Output)\n\/\/ Hari Wiguna, 2016\nuint8_t ReadIo( uint8_t address ){ \n WriteIo (B11111111, address ); \/\/ PCF8574 require us to set all outputs to 1 before doing a read.\n Wire.beginTransmission( address );\n \/\/ Wire.write(B11111111 );\n Wire.requestFrom( (int) address, 1 ); \/\/ Ask for 1 byte from slave\n uint8_t bits = Wire.read(); \/\/ read that one byte\n Wire.requestFrom( (int) address1, 1 ); \/\/ Ask for 1 byte from slave\n Wire.endTransmission(); \n return bits;\n}\n\n\n\/\/ Plug MIDI-Out of MPX16 into MIDI-In of the arduino \n\/\/ Press the PAD to select the PAD\nvoid handleNoteOn( byte inChannel, byte inNote, byte inVelocity ){\n\n \/\/ has the user pressed a PAD on the MPX16??\n if( inChannel == 10 && inNote >=36 && inNote <= 51){\n Select_Instr( inNote - 35 ); \n }\n \/\/ const bool firstNote = midiNotes.empty();\n \/\/ midiNotes.add(MidiNote(inNote, inVelocity));\n \/\/ handleNotesChanged(firstNote);\n}\n\n\n\/\/ Callback from Timer1\nvoid callback(){ \n if( old_bpm != bpm ){\n Timer1.initialize(tempo_delay); old_bpm = bpm;\n }\n count_ppqn++; \n if( count_ppqn >= scale_value[scale] ){ \n step_position++;\n if( step_position >= count_bars ){\n step_position=0;\n }\n Update_Midi();\n count_ppqn =0;\n digitalWrite(13, digitalRead(13) ^ 1);\n } \n\n \/\/ lcd.setCursor(0,1);\n \/\/ lcd.print (\"Step:\" + String(step_position) + \" \" + scale_value[scale] );\n \n}\n\n\/\/ ########################### Show Notes and current Step via LEDs #########################\nvoid showStep ( int mystep, uint8_t address1, uint8_t address2, uint8_t notes1, uint8_t notes2 ){\n uint8_t bitdp1 = notes1;\n uint8_t bitdp2 = notes2;\n\n \/\/ Current Step would be only shown if played\n if( playBeats==true ){ \n if( mystep < 8 ){ bitClear( bitdp1, step_position ); }\n if( mystep >= 8 ){ bitClear( bitdp2, ( step_position-8 ) ); }\n }\n \n WriteIo( bitdp1, address1 );\n WriteIo( bitdp2, address2 );\n}\n\n\n\/\/ ############################ Play the Midi-Notes ##################################### \nvoid Update_Midi() {\n \/\/ first 8 beats\n if( playBeats==true ){\n \n veloAccent = 100; \/\/ Normal Velocity by default\n \/\/ first Byte or first 8 Hits\n \/\/ \"song_position\" is the current step \n if( step_position<8 ){ \/\/ play notes1\n \/\/ Accent set?\n if( bitRead( inotes1[0],step_position ) == 0 ){\n \/\/ Accent is set\n veloAccent = iVelo[0];\n } \n \/\/ loop through all instruments .. But ignore Accent with 0 \n for( int i = 1; i < count_instr; i++ ){\n if( bitRead( inotes1[i],step_position ) == 0 ){\n velocity = round( iVelo[i] * veloAccent \/ 100);\n if( velocity > 127 ) {\n velocity = 127; \n }\n midiA.sendNoteOff( iSound[i], 0, midi_channel ); \n midiA.sendNoteOn( iSound[i], velocity ,midi_channel );\n } \n }\n }\n \n \/\/ second Byte or second 8 Steps\n \/\/ bitClear(bitdp2, (a-8));\n if( step_position >= 8 ){ \n \/\/ play Notes2\n if (bitRead( inotes2[0],step_position ) == 0){ \/\/ Accent is set\n veloAccent = iVelo[0];\n } \n \n \/\/ loop through all instruments .. but ignore the Accent with 0\n for( int i = 1; i < count_instr; i++ ){\n if( bitRead( inotes2[i], ( step_position-8 ) ) == 0 ){\n velocity = round(iVelo[i] * veloAccent \/ 100);\n if( velocity > 127 ){\n velocity = 127; \n }\n midiA.sendNoteOff( iSound[i], 0, midi_channel ); \n midiA.sendNoteOn( iSound[i], velocity , midi_channel );\n } \n } \n }\n }\n}\n\n\/\/ ############################## Select another Instrument and update all variables and LCD ###########\nvoid Select_Instr( int newIns ){\n \/\/ if ( newIns != curIns ){\n curIns = newIns;\n if( newIns >= count_instr ){\n curIns = count_instr-1; \n } \n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + Sounds[ curIns ] + \" \" + iVelo[ curIns ] +\" \");\n \n curPattern1=\"\";\n curPattern2=\"\";\n \n notes1 = inotes1[curIns];\n notes2 = inotes2[curIns]; \n \/\/ Show new Pattern on the Display\n for( int i = 1; i < 8; i++){\n if( bitRead( notes1, i ) == 0 ){ \n curPattern1 = curPattern1 + \"X\";\n }else{ \n curPattern1 = curPattern1 + \"-\";\n } \n if( bitRead( notes2, i ) == 0 ){ \n curPattern2 = curPattern2 + \"X\";\n }else{ \n curPattern2 = curPattern2 + \"-\";\n } \n }\n lcd.setCursor(0,1);\n lcd.print( curPattern1 + curPattern2 );\n}\n\n\n\n\/\/ ################################ Check the Potentiometer ##############################\nvoid Check_POT() {\n \/\/ Check the POT -- Menu-Functions\n aVal3 = round( analogRead( aPin3 ) \/8 );\n if ( aVal3 != old_aVal3 ){ \n \/\/ Correction\n myStep = myStep + 120; \n\n \/\/ Select Instrument Menu\n if( curModeNum==0 ){\n Select_Instr( round(aVal3\/8) ); \n }\n \n \/\/ Velocity\n if( curModeNum==1 ){\n if ( aVal3 > 127 ) { aVal3=127;}\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + String(aVal3) + \" \" + Sounds[ curIns ] + \" \");\n iVelo[ curIns ] = aVal3; \n }\n\n \/\/ Speed-Menu\n if( curModeNum==2 ){\n old_bpm = bpm;\n bpm = round(analogRead(aPin3)\/4 + 40);\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + String(bpm) +\" bpm \");\n tempo_delay = 60000000 \/ bpm \/ 24;\n }\n \n \/\/ Bars\n if( curModeNum==3 ){\n if ( aVal3 > 127 ) { aVal3=127;}\n count_bars = round(aVal3 \/ 8)+1;\n if ( count_bars>16 ) \n { count_bars=16; } \/\/ max of this setup\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + String( count_bars ) +\" \");\n\n }\n\n \/\/ Midi-Notes, perhaps we find a good Midi-Reference to replace Note and Name\n if( curModeNum==4 && curIns>0 ){ \/\/ 30 to 70 make sense\n newNote = round(aVal3\/3) + 25;\n if ( newNote > 70 ) { newNote =70;}\n if ( newNote < 30 ) { newNote =30;}\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + String(newNote) + \" \" + Sounds[ curIns ] + \" \");\n iSound[ curIns ] = newNote; \n }\n\n \/\/ Scale\n if( curModeNum==5 ){\n if( aVal3 > 127 ) { aVal3=127; }\n scale = round(aVal3 \/ 16 );\n if( scale >= sizeof( scale_string ) ){ scale = sizeof( scale_string )-1 ; }\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + scale_string[ scale ] + \" \" );\n }\n \n old_aVal3 = aVal3; \n }\n}\n\n\/\/ ################################ Check Menu - Buttons --#######################\nvoid Check_MENU() {\n \/\/ Check if Menu-Button or Start or Stop was pressed\n buttonStateS = digitalRead( buttonPinS ); \/\/ OLD: Menu changes on buttonpress .. not on release. NEW: It has to change the Menu on \"Release\" of the button\n \/\/ Acting by release offers to do something while the button is pressed. ... faster Change \n buttonStateL = digitalRead( buttonPinL );\n buttonStateR = digitalRead( buttonPinR );\n \n if( oldStateS==1 && buttonStateS == 0 ){\n curModeNum = curModeNum +1;\n if( curModeNum >(5-playBeats) ){ curModeNum = 0 ;} \n curMode= Modes[curModeNum];\n lcd.setCursor(0,0);\n if( curModeNum != 3 && curModeNum != 2 && curModeNum != 5 ){\n lcd.print( curMode + \" \" + Sounds[ curIns ] +\" \" + buttonStateS + \" \");\n }else{\n if( curModeNum == 3 ){\n lcd.print( curMode + \" \" + String( count_bars ) +\" \" );\n } \n if( curModeNum == 2 ){ \/\/ Speed\n lcd.print( curMode + \" \" + String(bpm) +\" bpm \" );\n }\n if( curModeNum == 5 ){\n lcd.setCursor(0,0);\n lcd.print( curMode + \" \" + scale_string[ scale ] +\" \" );\n }\n } \n }\n \n if( playBeats == false && buttonStateL != oldStateL && buttonStateL == LOW ){\n \/\/ Start-Button\n step_position=0;\n playBeats = true;\n lcd.setCursor(0,1);\n lcd.print( \"Started Beating \" );\n \/\/ MIDI-Clock\n midiA.sendRealTime( MIDI_NAMESPACE::Start );\n }\n if( playBeats == true && buttonStateR != oldStateR && buttonStateR == LOW ){\n \/\/ Stop-Button\n step_position=0;\n playBeats = false;\n lcd.setCursor(0,1);\n lcd.print( \"Stopped Beating \");\n midiA.sendRealTime(MIDI_NAMESPACE::Stop);\n }\n oldStateS = buttonStateS;\n oldStateL = buttonStateL;\n oldStateR = buttonStateR;\n}\n\n\/\/ ############################## Check the Buttons for Notes #################################\nvoid Check_DrumButtons() {\n \n \/\/-- Don't do anything unless they press a switch --\n \n \/\/ Unless they're all high... \n if ( bits1 != B11111111 && oldStatus1 != bits1 ){ \n \/\/-- Find lowest pressed switch --\n for( byte bitIndex = 0; bitIndex < 8; bitIndex++ ){\n if( bitRead(bits1, bitIndex) == 0) {\n if( oldStateL == HIGH ) {\n if( bitRead(notes1, bitIndex) == 1) {\n bitClear( notes1, bitIndex ); \n }else{\n bitSet( notes1, bitIndex );\n } \n inotes1[curIns] = notes1;\n }else{\n \/\/ Instrument_Select\n Select_Instr( bitIndex );\n }\n exit;\n } \n } \n }\n\n \/\/ Unless they're all high...\n if ( bits2 != B11111111 && oldStatus2 != bits2 ){\n \/\/-- Find lowest pressed switch --\n for( byte bitIndex = 0; bitIndex < 8; bitIndex++){\n if( bitRead(bits2, bitIndex) == 0 ){\n \/\/ Both Buttons areL and S are not pressed!\n \n if( oldStateL == HIGH ){ \n \/\/ && oldStateS == HIGH )\n if( bitRead(notes2, bitIndex ) == 1){\n bitClear(notes2, bitIndex ); \n }else{\n bitSet( notes2, bitIndex ); \n } \n inotes2[curIns] = notes2;\n \/\/ Serial.println (\"Bit Cleared\");\n \/\/ } \n \/\/ ExplosionAnimation(bitIndex, address2);\n \n }else{\n \/\/ left 2 Bits to change the Scale\n if( bitIndex == 0 ){ \n if( scale > 0 ){ scale = scale-1; }\n lcd.setCursor(0,0);\n lcd.print( Modes[5] + \" \" + scale_string[ scale ] +\" \" );\n }\n \/\/ left 2 Bits to change the Scale\n if( bitIndex == 1 ){ \n scale = scale+1;\n if ( scale >=4){ scale=0; }\/\/ only llop through straight scales \n lcd.setCursor(0,0);\n lcd.print( Modes[5] + \" \" + scale_string[ scale ] +\" \" );\n }\n\n \/\/ left 4 Bits to change the Scale\n if( bitIndex==6 ){\n old_bpm = bpm;\n bpm = bpm - 2;\n if( bpm < 40 ){ bpm=40; }\n lcd.setCursor(0,0);\n lcd.print( Modes[2] + \" \" + String(bpm) +\" bpm \" );\n tempo_delay = 60000000 \/ bpm \/ 24;\n }\n \n \/\/ add some speed to BPM\n if( bitIndex==7 ){\n old_bpm = bpm;\n bpm = bpm + 2;\n if (bpm > 300){ bpm=300; }\n lcd.setCursor(0,0);\n lcd.print( Modes[2] + \" \" + String(bpm) +\" bpm \" );\n tempo_delay = 60000000 \/ bpm \/ 24;\n }\n } \n exit;\n } \n }\n }\n oldStatus1 = bits1;\n oldStatus2 = bits2; \n}\n\n\n\n\/\/ #### Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup Setup #####\n\nvoid setup(){\n\n \/\/ for Debugging\n \/\/ Serial.begin( 115200 );\n\n pinMode(13, OUTPUT);\n \n lcd.init(); \/\/ initialize the lcd \n \/\/ Print a message to the LCD\n lcd.backlight(); \/\/ I have not enabled that pin... at my box, the backlight is always on, via hardwire.\n lcd.print( \"hman-Projects.de\" ); \/\/ << put in Your prefered Name for this Sequencer into this variable:)\n\n count_instr = sizeof(iSound);\n\n Wire.begin(); \/\/ Arduino UNO uses (SDA=A4,SCL=A5)\n \/\/ Wire.begin(0,2); \/\/ ESP8266 needs (SDA=GPIO0,SCL=GPIO2)\n\n pinMode(buttonPinS, INPUT); \/\/ Selecct Button\n pinMode(buttonPinL, INPUT); \/\/ Left- or Start-Button\n pinMode(buttonPinR, INPUT); \/\/ Right- or Stop-Button\n \n \/\/ virtual Pull-Up-Resitor activated, Pins are by default \"HIGH\"\n digitalWrite( buttonPinS, HIGH); \/\/ Selecct Button\n digitalWrite( buttonPinL, HIGH); \/\/ Left- or Start-Button\n digitalWrite( buttonPinR, HIGH); \/\/ Right- or Stop-Button\n\n notes1 = B11111111; \/\/ Bitwise per Instrument, No Note equals \"1\", note to play equals \"0\" !\n notes2 = B11111111;\n midiA.setHandleNoteOn( handleNoteOn );\n midiA.begin( MIDI_CHANNEL_OMNI ); \/\/ Midi-Input for Sync\n midiA.turnThruOff(); \/\/ this prevents the MPX16 to collaps\n \n tempo_delay = 60000000\/bpm\/24; \/\/ delay in Microseconds ....\n Timer1.initialize( tempo_delay ); \/\/ initialize timer1, and set a 1\/2 second period\n Timer1.attachInterrupt( callback ); \n}\n\n\nvoid Read_Switches(){\n bits1 = ReadIo( address1 ); \/\/ Read all switches\n bits2 = ReadIo( address2 ); \/\/ Read all switches\n}\n\n\n\n\/\/ ############################################ void loop #################################################\n\nvoid loop() {\n \/\/ b is a simple Counter to do nothing \n b ++;\n \/\/ read the IO-Pins every 5 cycles\n if( b > 4 ){ \n \/\/ Update the LEDs\n showStep( step_position, address1, address2, notes1, notes2 );\n Check_MENU();\n b = 0;\n }\n\n myStep ++; \/\/ This is second counter to find the right time to get the new values from the BUTTONS and the POT\n \n if( myStep >= myRefresh ){\n myStep = 0;\n Read_Switches();\n Check_POT();\n Check_MENU();\n Check_DrumButtons(); \n \/\/ lcd.setCursor(0,1);\n \/\/ lcd.print (\"Step:\" + String(step_position) + \" \" + scale_value[scale] + \" \" + String(scale) + \" \" );\n } \n\n\n \/\/ Check MIDI IN\n \/\/ Is there a MIDI message incoming ?\n midiA.read();\n \/*\n switch( midiA.getType()){ \/\/ Get the type of the message we caught\n \/\/ case midi::ProgramChange: \/\/ If it is a Program Change,\n \n \/\/ BlinkLed(MIDI.getData1()); \/\/ blink the LED a number of times\n \/\/ correponding to the program number\n \/\/ (0 to 127, it can last a while..)\n \/\/ case midi:: \n break;\n \/\/ See the online reference for other message types\n default:\n break;\n }\n *\/\n}\n\n \n\n\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\n\/\/This function is call by the timer depending Sync mode and BPM\/\/\n\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\nvoid Count_PPQN(){\n \n\/\/-----------------Sync SLAVE-------------------\/\/ \n\/* if(midi_sync){\n timer_time=5000;\n if (midiA.read()) \/\/ Is there a MIDI message incoming ?\n {\n byte data = midiA.getType();\n if(data == midi::Start ){\n if(playBeats==true) \/\/mode==MODE_PATTERN_PLAY || mode==MODE_PATTERN_WRITE || mode==MODE_INST_SELECT)\n {\n playBeats=true;\n \/\/ play_pattern = 1;\n count_ppqn=-1;\n }\n \n \/\/if(mode==MODE_SONG_PLAY || mode==MODE_SONG_WRITE){\n \/\/ play_song = 1;\n \/\/ count_ppqn=-1;\n \/\/ song_position=0;\n \/\/ }\n }\n else if(data == midi::Stop ) {\n playBeats=false;\n \/\/ play_pattern = 0;\n \/\/ play_song = 0;\n \/\/ count_step=0;\n step_position=0;\n count_ppqn=-1;\n \/\/ song_position=0;\n }\n else if(data == midi::Clock && playBeats==true) \/\/(play_pattern == 1 || play_song == 1)) case midi::Clock\n {\n count_ppqn++;\n count_step=count_ppqn\/scale_value[scale];\n if(count_ppqn>=(count_bars * scale_value[scale])-1) {\n count_ppqn=-1; \n step_position++; \n \/\/ song_position++;\n \/\/ if (song_position==16) song_position=0;\n if ( step_position >= count_bars ) { step_position=0; }\n \/\/ Play Notes!!\n Update_Midi();\n \/\/ Request news from Drum-Buttons\n Check_DrumButtons(); \n \/\/ Update the LEDs \n showStep (step_position, address1, address2, notes1, notes2 ); \n }\n \/\/ if (count_ppqn>1) led_flag=0;\/\/Led clignote reste ON 1 count sur 6\n \/\/ if (count_ppqn<=1) led_flag=1; \n \/\/ led_flag=!led_flag; \n }\n \/\/ if (data==MIDI_CLOCK && (play_pattern == 0 || play_song==0)){\n \/\/ count_led++;\n \/\/ if(count_led==12){\n \/\/ count_led=0;\n \/\/ led_flag=!led_flag;\n \/\/ }\n \/\/}\n \n }\n }\n \/\/-----------------Sync MASTER-------------------\/\/\n if(!midi_sync){\n *\/\n \/\/ timer_time=2500000\/bpm;\n \/\/ midiA(MIDI_CLOCK);\n digitalWrite(13, digitalRead(13) ^ 1);\n \/* \n lcd.setCursor(0,1);\n lcd.print( \" Timer\" + String( count_ppqn ) ); \n\n \n \/\/ midiA.sendRealTime(MIDI_NAMESPACE::Clock);\n if( playBeats==true ) \/\/play_pattern||play_song)\n { \n count_ppqn++; \n count_step=count_ppqn\/scale_value[scale]; \n if(count_ppqn>=(count_bars*scale_value[scale])-1){\n count_ppqn=-1;\n step_position++;\n \/\/ if (song_position==16) song_position=0;\n if ( step_position>= count_bars ) { step_position=0; }\n \/\/ Play Notes\n Update_Midi();\n Check_DrumButtons(); \n \/\/ Update the LEDs \n showStep (step_position, address1, address2, notes1, notes2 );\n }\n \/\/ if (count_ppqn>1) led_flag=0;\/\/Led blink 1 count on 6\n \/\/ if (count_ppqn<=1) led_flag=1; \n \/\/ led_flag=!led_flag;\n }\n else if(playBeats==false) \/\/ !play_pattern &&!play_song)\n {\n count_ppqn=-1;\n step_position=0;\n \/\/ count_led++;\n \/\/ song_position=0;\n \/\/ if(count_led==12){\n \/\/ count_led=0;\n \/\/ led_flag=!led_flag;\n \/\/ }\n \n }\n\/\/ }\n*\/\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Hi, I have recycled the Code of the 16Step Sequencer to use it as a Sequencer for the Akai MPX16. I belive, it could be used for the Akai MPX8 too. To trigger the sample-pads via MIDI, I used the MIDI-Channel 10 and the MIDI-Notes 36 to 51, for Pad 1 to Pad 16. The […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-369","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"_links":{"self":[{"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/posts\/369"}],"collection":[{"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=369"}],"version-history":[{"count":4,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/posts\/369\/revisions"}],"predecessor-version":[{"id":376,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=\/wp\/v2\/posts\/369\/revisions\/376"}],"wp:attachment":[{"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hman-projects.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}