PacificCV Tus Tswj rau Modular Synths: 6 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Ob peb lub lis piam rov qab kuv tau tshaj tawm Cov Lus Qhia rau Oceania MIDI maub los uas kuv tau tsim los ua ke nrog Kuv Ua Noise 0-Coast. Hauv nws kuv tau hais tias kuv tab tom tsim CV version ib yam, thiab ntawm no nws yog. Txij li qhov nruab nrab version tau tsim los ua kom haum rau 0-Coast, uas (los ntawm Lub Vev Xaib Ua Ntej Lub Vev Xaib) "… siv cov txheej txheem los ntawm ob qho Moog thiab Buchla cov qauv (aka" East Coast, "thiab" West Coast, "vim lawv qhov chaw nyob), tab sis ncaj ncees rau tsis yog thiab yog li siv "tsis muaj kev sib xyaw ntawm ntug dej hiav txwv." Txij li cov khib no tau hais meej meej los ntawm Buchla Music Easel (tej zaum rau feem ntau yog thawj qhov sawv cev ntawm West Coast Synthesis) Kuv tau hu lub npe no tom qab dej hiav txwv tshwj xeeb.

Yog tias koj nkag mus rau Eurorack modular synths, qhov no yog qhov tseem ceeb ntawm DIY lub peev xwm kov lub ntsej muag keyboard zoo li Buchla LEM218 lossis EDP Wasp. Kuv tau tsim nws los ua kom zoo dua ntawm "kev nkag siab siab" muaj nyob hauv ATMega kov qhov nkag siab, tab sis tsis muaj laj thawj uas koj yuav tsum suav nrog qhov ntawd-nws tsuas yog qhov zoo "ntxiv" uas koj tuaj yeem siv piv txwv los pub rau CV ntawm lub lim hauv thaj. Rau feem ntau kev tswj suab paj nruag sab hnub poob, koj tuaj yeem siv tam nrog DAC ib leeg rau CV thiab kom siv tau tag.

Chav tsev no tsuas yog tso tawm 4 octaves yam tsis muaj kev pab (0-5v ntawm + txoj kev tsheb nqaj hlau) uas feem ntau yuav ntau dua li txaus, tab sis yog tias koj xav tiag tiag thawb nws mus rau qhov tsis zoo nws yooj yim txaus nrog cov khoom siv sab nrauv. Nws tseem yog qhov txaus siab heev "kov sawb" zoo li txawm tias txiav cov npoo.

Kauj ruam 1: Yam Koj Yuav Tsum Tau

Cov ntaub ntawv sib txawv ntawm Oceania tsuas yog me ntsis:

Khoom siv

1 Arduino Mega-Kuv pom zoo rau cov mini style (zoo li qhov no ntawm Amazon) kom ua kom yooj yim dua rau hauv qab qhov ntsuas qhov ntsuas, tab sis nws tsis tsim nyog kiag li. Tej zaum koj tseem tuaj yeem siv Uno/Genuino lossis Mini lossis Feather, tab sis qhov ntawd tej zaum yuav xav kom koj kho ADC pins zoo li digital thiab kuv tsis paub yog tias tus qauv kev muaj peev xwm ua haujlwm ib txwm ua rau cov ntawd. Thiab koj yuav tsum xam tawm qhov program ntawm koj tus kheej.

1-2 Adafruit MCP 4725 I2C DAC tawg tawm cov laug cam

2-3 mono 3.5mm phono nyob

1 daim ntawv ib sab ntawm tooj liab npog (siv rau kev kos koj tus kheej PCBs) kom sib npaug ib kab txaij txog 18 "x1 ⅛"

PCB pawg thawj coj saib

16-32 solderable duPont pins (Arduino Style)

Eurorack lub tsheb npav muaj zog siv tau cov kab xev (pob ntawm 10 los ntawm Amazon, lossis yog tias koj muaj kev tso ntxiv ib puag ncig.)

Stranded hookup hlau (qhov ua kom zoo dua-Kuv siv qhov 30AWG, dua los ntawm Amazon)

Solder

Ib yam dab tsi uas koj nyiam thiab nyiam ua haujlwm nrog txhawm rau txhim kho nws

Cov cuab yeej

Lub rooj pom (hloov pauv, CNC lossis lub tshuab txiav laser tej zaum yuav muab cov txiaj ntsig zoo rau koj yog tias koj paub tias koj tab tom ua dab tsi.)

Cov cuab yeej siv hlau thiab cov cuab yeej siv dag zog, suav nrog cov pliers, cov tshuab txiav thiab cov hlua hlau

Lub tshuab luam ntawv (ntawv, tsis yog 3-d) (tab sis tej zaum kuj yog 3-d)

Ncaj-ntug

Tus cim ruaj khov/tus cim

Kev siv laum (lub laum xovxwm lossis cov cuab yeej siv xovxwm yuav zoo tshaj.)

Cov cuab yeej teb lossis cov ntawv

Hlau ntaub plaub (xaiv tau)

Kauj ruam 2: Qhov "Tsis Ntsuas"

Ntau dua lossis tsawg dua luam kuv tus kheej los ntawm lwm qhov qhia tau, luam tawm daim ntawv pdf thiab txiav tawm qhov thim rov qab (sab saum toj) version ntawm tus qauv (tus uas tsis muaj ntawv sau lossis Arduino tus lej tus lej ntawm nws). Yog tias koj daim npog tooj liab tsis ntev txaus ces txiav txim siab qhov twg txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau thiab txiav cov qauv ntawm qhov ntawd/cov ntsiab lus (s). Tom ntej no, txiav cov tooj liab clad rau hauv ib daim hlab zoo ib yam li cov kab ntawv (txhua qhov yuav tsum yog 1⅛ los ntawm txawm li cas los dav cov qauv kab txaij yog.) Xev daim ntawv kab xev mus rau nraub qaum ntawm daim ntawm tooj liab clad thiab, siv tus cim ruaj khov, khij lub ces kaum ntawm lub voos peb sab, duab plaub sib npaug thiab cov duab plaub ntawm cov npoo ntawm cov tooj liab, tom qab ntawd siv tus ntug ncaj los txuas lawv kom koj muaj qee yam uas zoo li daim duab nrog cov kauj ruam no.

Tom ntej no, ua tib zoo teeb tsa lub rooj pom hniav kom cov hniav tsis txhob txiav saum toj rooj. Lub ntsiab lus yog tshem tawm cov hniav-dav ntawm sab tooj liab ntawm daim ntaub tab sis tsis txiav los ntawm cov iav fiberglass (tsawg kawg tsis muaj ntau yam.) Koj yuav xav sim nws nrog qee qhov "poob" tshuav los ntawm kev txiav cov kab ntawm tooj liab clad kom pom tias cov hniav tsis siab dhau lossis qis dhau. Txiav cov ntaub thaiv uas siv cov kab kos rau sab nraub qaum raws li cov lus qhia uas ua kab rau ntawm cov hniav. Koj yuav xav siv phau ntawv qhia lub kaum nrog kev txuas ntxiv. Rau cov ntawv no, Kuv tau ua tus jig uas muaj 2 62.5˚ cov lus qhia, tab sis ob txoj hauv kev kab kab pheeb ces kaum yuav tsum txhua yam ntawm 62.5˚. Mus qeeb. Ib zaug ntxiv, kuv qhov kev txiav tsis zoo li zoo li kuv tau cia siab (tab sis lawv tau zoo me ntsis dua li MIDI version tsawg kawg.)

Thaum cov channel raug txiav rau hauv qhov hnav, koj yuav xav ua cov ntawv tooj liab ntxhib. Qhov no tiag tiag cia koj tau txais qhov kov-sawb xav, tshwj xeeb tshaj yog yog tias koj ua kom lub tshuab ziab khaub ncaws blobbing kom tsawg kawg. Kuv nqa qee cov ntaub plaub hlau los rau kuv kom muab nws txhuam.

Tsis tas yuav hais, ua txhua qhov kev tiv thaiv ib txwm thaum ua haujlwm nrog lub rooj pom. Hnav cov tsom iav kev nyab xeeb thiab siv lub laub-stick, thiab rau tus Tswv SAKE yog tias koj tsis paub dab tsi koj tab tom ua tsis txhob sim no! Ib zaug ntxiv, Kuv tau teeb tsa tus qauv ntawm no ua PDF hauv kev cia siab tias yog tias ib tus neeg muaj lub tshuab CNC lossis lub tshuab txiav laser lawv xav sim qhov no nrog qhov uas lawv tuaj yeem siv cov vectorized version ntawm cov qauv thiab txiav tus kws tshaj lij saib ib qho. (Thov qhia qhov tshwm sim yog tias koj ua qhov no.) Kuv kuj tseem xav txog kev sim ua nws li EagleCAD cov ntaub ntawv lossis qee yam thiab muaj PCB lub tsev ua ob peb ntawm cov no nrog cov cim kom haum rau Arduino kom txo cov kab thiab cov ntsiab lus tsis ua tiav, tab sis kuv rov hais dua uas yuav raug txwv tsis pub kim thiab yuav ua rau cov maub los tob dua qhov kuv xav tau rau kuv txoj haujlwm.

Thaum cov tsis-cov yuam sij raug txiav rau hauv qhov qhwv, laum qhov nrog me me me me li koj cov xovxwm tuaj yeem tuav tau uas tseem yuav tso cai rau koj kom tau txais koj cov xov hlau txuas los ntawm cov lus qhia lossis cov ces kaum ntawm kab saum toj kawg nkaus ntawm txhua qhov ntawm -cov strips Raws li ua ntej, cov duab ntawm no tsis tseem ceeb-yog tias koj xav tau koj tuaj yeem txiav cov kab ke zoo ib yam los yog daim duab Penrose lossis txhua yam uas koj nyiam (piv txwv tias koj muaj CNC lossis tshuab txiav laser.)

Kauj ruam 3: Electronics

Rau cov kauj ruam tom ntej, siv sijhawm li ob peb feeb ua ntej yuav xav txog yuav ua li cas koj xav txhim kho txhua yam txhawm rau txhawm rau ua kom muaj kev paub kwv yees ntev npaum li cas thiaj ua rau ntau qhov txuas sib txuas.

Muab ib daim hlau txuas rau ib qho ntawm qhov tsis-siv los ntawm kev xaim hluav taws xob hla lub qhov tho qhov los ntawm sab nraub qaum, tom qab ntawd yaug-txiav cov hlau tawm ntawm sab tooj liab. Yog tsis muaj kev tshaj lij, xav txog tias koj yuav mus rau nws li cas, thiab npaj ua kom cov hlau tsuas yog ntev txaus kom tau txais los ntawm txhua qhov tsis tseem ceeb hauv txhua kab rau Arduino yam tsis muaj ntau tshaj li ob peb hli ntawm cov xov hlau ntxiv. Tom qab ntawd, ua tib zoo, ib lub xov tooj ib zaug, xaim cov xaim los ntawm txhua qhov tsis tseem ceeb mus rau Arduino Mega tus lej sib thooj rau tus lej cim ntawm txhua tus tsis-tus lej hauv qab daim duab hauv pdf txuas mus rau kauj ruam 2. Qhov no yog ua-lossis-tawg ib feem ntawm kev ua haujlwm. Koj tuaj yeem xav hla ua ntej mus rau ntu ntu kev ua haujlwm thiab sim ua haujlwm ntawm cov yuam sij tom qab txhua ob peb qhov txuas txuas. (Yog tias koj tsis siv qhov me me 2560 ces koj tuaj yeem xav saib qhov kev tiv thaiv kev tiv thaiv kab mob los yog siv ntau daim phiaj thiab dupont pins.) cov tsis-cov yuam sij.

Tom ntej no, xaim DACs zoo li hauv daim duab Fritzing. Nco ntsoov tias tsuas yog ib qho uas siv los ntawm qhov qhia tawm CV yog A0 khi rau 5v (qhov no yog txhawm rau muab nws tso rau ntawm I2C cais chaw nyob los ntawm qhov hluav taws xob ib lub octave tso tawm.) Yog tias koj xaiv tsis suav nrog CV qhia, ces yog ADC tawm mus. Txuas 5v rau txhua Vdd, Gnd rau Gnd, SDA rau SDA, thiab lwm yam.

Thaum DACs txuas, koj tuaj yeem xav nrhiav I2C luam theej duab hauv online txhawm rau kuaj seb lawv ua haujlwm thiab lees paub, tab sis qhov no tsis nruj me ntsis-Adafruit muaj QC zoo qauv zoo tom qab txhua qhov.

Tom ntej no, txuas Vout lub davhlau ya nyob twg ntawm ADCs thiab Arduino Pin 7 txhua tus mus rau qhov txuas txuas ntawm ib qho ntawm 3.5mm lub qhov (socket), thiab khiav lub tes tsho txuas mus rau ib qho ntawm cov kab hauv av. Nco ntsoov tias yog tias koj npaj yuav txhim kho lub qhov (socket) nyob rau hauv cov hlau hlau uas koj feem ntau tsuas yog yuav tsum tau txuas qhov txuas los ntawm ib qho ntawm lub jack lossis phaj nws tus kheej mus rau hauv av tsheb nqaj hlau raws li feem ntau lub tes tsho sib txuas tau tsim los ua rau hauv av li ntawd.

Thaum kawg, sib txuas ob kab ntawm 8 duPont pins ib sab ntawm ib sab ntawm daim kab xev thiab tso lub zog Arduino los ntawm kev txuas Eurorack 5v mus rau Arduino Vin thiab ib ntawm peb txoj kab hauv av mus rau Arduino av. (Saib daim duab Fritzed thiab daim duab piv txwv kawg rau tus pin teeb tsa hla cov kab txaij.) Yog tias koj xav tau, koj tuaj yeem tsim cov npav Eurorack ntxiv los ntawm kev tso ntau 2x8 kab ntawm tus pin hla cov kab no tib yam, thiab ua rau lawv ob peb kab sib nrug rau muab cov plugs rau qee chav. Kuv ib txwm siv lub ntsej muag liab raws kab -12v txij li txoj hauv kev no tsis suav nrog cov ntsaws ntsaws ntsaws -tsuas yog ua kom zoo tshaj plaws thiab mob siab rau uas koj ib txwm ntsaws koj li EURORACK GEAR hauv qhov tseeb! Tsis yog Cov Lus Qhia thiab kuv tsis tuaj yeem lav lub luag haujlwm tsis zoo thiab koj tsis xav tso cov pa luam yeeb tawm ntawm koj cov qauv kim.

Yog tias koj xav tau koj tuaj yeem txuas tus Eurorack txuas txuas thiab ADCs mus rau tib daim ntawm lub rooj tsav nkoj ib yam li kuv tau hais los saum no, tab sis qhov no tsis yog qhov tseem ceeb heev. Txawm li cas los xij, yog tias koj khaws nws kom zoo, nws muaj feem yuav ua haujlwm tau zoo.

Kauj ruam 4: Mount Nws

Ib zaug ntxiv, qhov no yog ib feem uas kuv tau xaiv ua nws tsis tseem ceeb. Koj tuaj yeem qhia los ntawm daim duab tseem ceeb nyob rau sab saum toj uas siv kev tsim kho ntawm PVC cov ntawv thiab txhuas thiab khiav cov xov hlau los ntawm ob daim kab xev ntawm tsis-tus lej nqes nqes rau hauv lawv. Kuv siv daim kab xev ob tog los ntsaws rau qhov tsis yog cov yuam sij.

Muaj qhov zoo los siv txhuas rau CV jacks. Nws yooj yim rau kev ua haujlwm thiab ua tus coj, yog li koj tuaj yeem ua kom zoo dua ntawm cov txiaj ntsig hauv av uas kuv tau hais.

Kuv tau ua kom tiav rau sab saum toj-pem hauv ntej ntawm Apache rooj plaub (Harbor Freight tus qauv ntawm Pelican Case) uas kuv tau siv los ua ob zaug 84hp Eurorack rooj plaub. (Tag nrho txhua yam yog qhov kev tshoov siab los ntawm Buchla Music Easel-Kuv xav d cov qauv nyob rau sab saum toj thiab tswj qhov chaw ntawm sab xub ntiag.)

Qhov no yuav zoo li ntoo zoo ib yam, tab sis koj tuaj yeem siv txhua yam uas koj xav tau raws li lub hauv paus-ua npuas ncauj, 3d luam tawm PLA, duab los qhia, ib qho ntawm cov iav tiaj tiaj iav, thiab lwm yam. tswj qhov chaw txaus kom tiv thaiv kev cuam tshuam kev cuam tshuam, muab koj lub peev xwm thiab cov khoom lag luam thiab kev nyiam rau kev ua neej nyob ntev.

Kauj Ruam 5: Txoj Haujlwm

Raws li ntawm Oceania Midi programmer kuv tsis nkag mus yuav ua li cas upload cov duab kos mus rau Arduino. Siv qhov pib qhia tsuas yog siv qhov "Blink" kos duab siv ob qho kuv tau txuas nrog (nws xaus rau ntawm kev taw qhia-tus kws kho mob no zoo li lees paub nws raws li lwm hom kev tshaj tawm.

Hauv cov ntawv zip uas txuas nrog yog ob daim duab. Rub tawm thiab unzip lawv thiab ntxiv lawv rau koj lub tsev qiv ntawv kos duab Arduino. Thawj qhov kos duab (megaCapacitiveKeyboardTest) yog kev hloov kho ntawm Arduino readCapacitivePin muaj nuj nqi uas nyob ntawm no raws li kev ntsuas uas qhia koj tias qhov tseem ceeb tau raug nias thiab lub peev xwm muaj txiaj ntsig rau nws thaum nws tau raug nias hauv cov saib xyuas. Nws yuav tso cai rau koj pom qee qhov txiaj ntsig thiab ntsuas kev sib txuas los ntawm Arduino mus rau qhov tsis yog-tus yuam sij, thiab yog qhov kuv xav kom koj siv thaum piav qhia qhov kev sim ntawm cov txheej txheem soldering. Thawb qhov no mus rau Arduino, qhib qhov saib ua ntej (nco ntsoov teeb tsa lub hauv paus saib kom raug qhov tseeb) thiab kov ob peb yam tsis yog-tus yuam sij, sau tseg qhov tseem ceeb rau qhov hnyav tshaj plaws thiab kov tau koj yuav siv los ua si. Cov no yuav raug siv rau minCap (kov lub teeb pom kev zoo) thiab maxCap (hnyav tshaj) qhov txiaj ntsig hauv daim duab thib ob (PacificCV), uas yog qhov koj yuav tau thauj mus rau tus tswj thaum koj ua tiav thiab npaj ua si. Yog tias koj xav tau kho qhov txiaj ntsig, ua li ntawd, tom qab ntawd khaws cov duab kos dua thiab muab xa mus rau PacificCV.

Kauj ruam 6: Ua si

Yog tias koj muaj Eurorack system lossis ib nrab-modular Eurorack sib xws synths, koj yuav tsum ntau dua lossis tsawg nkag siab yuav ua dab tsi nrog qhov no.

Txuas tus maub los rau hauv daim npav siv kab ntawv thiab rov ua tib zoo saib xyuas txoj kab sab xis-yog tias koj ua nws rov qab los koj tuaj yeem xaus teeb tsa nws li thim rov qab +12v Circuit Court los ntawm koj Arduino, thiab muaj qhov tshwm sim tiag tiag yuam kev yuav kib nws thiab/lossis ua rau puas rau koj cov khoom siv fais fab khib, yog li nco ntsoov tias Cov kab liab liab nyob hauv qab ntawm kab ntawv kab npe ua khub raws li sawv cev hauv daim duab kos duab.

Patching yog qhov lom zem ib feem ntawm kev sib xyaw ua ke. Cov zis yuav tsum zoo li paub zoo (yog li koj yuav xav sau lawv li cas tom qab koj teeb tsa lawv)-qhov tso tawm volt-per-octave feem ntau yog pub oscillator thiab lub qhov rooj feem ntau mus rau lub qhov rooj qis dhau (lossis lub tshuab hluav taws xob lub hnab ntawv rau Lub Hom Phiaj Sab Hnub Tuaj.) Lub siab-nkag siab CV tuaj yeem mus rau txhua yam nrog CV hauv-lim dej, rooj vag, oscillators, sib tov, thiab lwm yam.

Lub octave +/- cov pawj zoo li ntseeg tau zoo ntawm kuv. Ib zaug ntxiv nws tsuas yog los ntawm 0v-5v yog li koj tau txwv rau ntau ntawm 4 octaves, tab sis siv cov cuab yeej tawm sab nrauv zoo li Ua Ntej Lej Tsis Zoo lossis Erica Synths Pico Scaler koj yuav tsum muaj peev xwm ntsaws qhov no nce lossis nqis. Los ntawm Ziv ntawm Loopop (uas kuv txhawb siab Eurorack thiab cov neeg nyiam sib txuas los saib thiab txhawb nqa ntawm Patreon):

"Kev ua lej yuav tsum ua kom zoo - ntsaws koj Arduino [volt per octave ADC tawm] rau hauv cov tswv yim 3, tig attenuverter 3 tag nrho CW - thiab tom qab ntawd siv attenuverter 2 ntxiv lossis rho tawm rau nws (nws normalled rau 10v yog tsis muaj dab tsi txuas rau nws), thiab tig lub attenuverter ntawm cov tswv yim 2 ua tiav CCW kom mus rau qhov tsis zoo. Siv SUM cov txiaj ntsig raws li qhov tshwm sim (thiab pom tseeb kom ntseeg tau tias lub hnab ntawv tsis ua dab tsi). lossis qis dua -10 tab sis lwm qhov kev ntsuas yuav tsum zoo. Yog tias koj nkag mus rau VCA uas ntxiv qhov tau txais txiaj ntsig koj tseem tuaj yeem nthuav dav Arduino CV ntau dua 5v thiab siv koj li Arduino rau 0-10v, -5 txog +5, lossis lwm yam 10v ntau, offset los ntawm lej."

Kuv tsis tau sim qhov ntawd lossis Erica, tab sis qhia rau kuv paub tias koj tuaj nrog dab tsi tshwj xeeb tshaj yog tias koj muaj thiab siv qhov no nrog Niam 32.

Kho kom raug: Kuv tau txuas rau cov vis dis aus kuv tau ua kom pom qhov no thiab ob peb lwm txoj haujlwm uas kuv tau ua haujlwm. Nws tsis yog Kaitlyn Aurelia Smith, tab sis kuv txaus siab rau cov chav uas kuv siv ntawm no.

Thaum kawg, Kuv xav tias tseem muaj kev sib tw Arduino qhib uas kuv tuaj yeem nkag mus rau qhov no thiab tsim nyog rau, yog li qhov no muaj txiaj ntsig zoo, thov txiav txim siab pov npav rau kuv hauv nws!

Cheers!