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[Powered by Google Translate] Christopher BARTHOLOMEW: Se konsa, ou te pwobableman te tande yon

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anpil sou Arduino, ak tout fason yo briyan li ka

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pwograme lè l sèvi avèk C rive nan resevwa enfòmasyon nan men gwoup aparèy periferik

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tankou bouton detèktè, ak bouton.

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Oswa montre epi kontwole pwodiksyon nan eleman fizik

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tankou limyè, moun ki pale sèrvo, ak motè yo.

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Men, sa ki se yon Arduino, reyèlman?

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Yon Arduino se yon kalite mikrokontroleur, ak yon

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mikrokontroleur kapab panse a kòm yon trè scaled desann

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òdinatè ki gen ladann eleman tankou yon

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processeur, ti kantite memwa pou estoke senp

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pwogram, ak divès kalite opinyon / pwodiksyon broch ki pwodui

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yon aktyèl elektrik kòm yon konsekans

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enstriksyon nan pwogram ou an.

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Broch yo sou yon Arduino yo se isit la yo koòdone avèk la

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konpozan fizik tankou poul, moun kap pale, detèktè,

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motè, ak anpil plis.

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Sa a se yon Arduino UNO R3 ki nou pral lè l sèvi avèk

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nan tout kou a.

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Nan videyo sa a, mwen pral ale sou sèlman kèk nan prensipal la

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konpozan sa a tablo.

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Sepandan, si ou ta renmen plis enfòmasyon, ki mwen rekòmande

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w ap li, vizite lyen ki pou la nan Arduino plen UNO

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spesifikasyon.

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Ka Pouvwa pou tablo a dwe resevwa nan men USB, ekstèn AC

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DC pouvwa ekipman, oswa pa konektè batri.

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Pou egzèsis sa yo videyo, nou pral itilize USB pou pouvwa.

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Si w ap enterese nan lòt fason yo kapab bay pouvwa a ou

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Arduino tablo oswa ou ta renmen konnen pi plis sou broch yo pouvwa,

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tanpri al gade seksyon nan pouvwa nan spesifikasyon la

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lyen bay yo.

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Next, ki te gen de seksyon peny prensipal sou yon Arduino ke nou

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pral sèvi ak bay vòltaj konpozan nou yo -

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broch dijital ak broch opinyon analòg.

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Anvan nou ale nenpòt pli lwen, kite la

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konprann tèm sa yo de.

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Broch opinyon analòg yo se pou konpozan tankou manch,

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ki kreye siyal analòg.

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Yon bouton ka bay diferan kantite rezistans nan

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vòltaj ant de broch yo ke li nan konekte nan.

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Pran, pou egzanp, yon dime limyè.

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Kòm se bouton an trese nan yon direksyon, limyè a pral

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vin pi klere paske redwi yo rezistans.

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Sa a bay yon aktyèl pi fò elektrik la

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eleman, ki rezilta yo nan yon limyè briyan.

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Koulye a, broch yo dijital yo yon ti kras diferan nan ki

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yo pwodwi yon siyal dijital ki se depann sou la

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kantite lajan pou vòltaj atravè broch yo.

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Siyal dijital pou Arduino nan yo se swa sou a 5

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vòlt, oswa tèr sa vle di nan, oswa zewo vòlt.

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Pran pou egzanp yon switch limyè.

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Yon switch limyè gen de valè -

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sou yo ak sou.

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Lè w vire limyè a sou lè l sèvi avèk switch la, w ap

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founi plen pouvwa ak sa yo ki limyè.

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Oke, sou sijè a nan dijital ak analòg, mwen si ke

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ou te remake pa kounye a akwonim nan PWM anba dijital la

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kloure seksyon.

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Sa a kanpe pou modulation batman kè Width.

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PWM manipul vòltaj la sou tan yo pwodwi

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batman efè ki sanble ak sa yo

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nan broch yo analòg.

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Pou egzanp, pa vire yon limyè sou yo ak sou rapidman pou

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longè diferan de tan, li ka kontwole nan limyè a

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klète.

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Se konsa, ou ta ka mande tèt ou, si tout sa ou dwe

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se bay kèk vòltaj nan kèk eleman pou li nan travay,

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poukisa menm gen yon mikrokontroleur?

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Oke, kite la pran yon gade wo nivo nan yon mikrokontroleur ki

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nou ka kominike avèk chak jou -

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revèy la alam.

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Revèy la alam gen entrain anpil moun, pou bouton egzanp,

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ki te itilize yo kominike avèk pwogram nan revèy alam.

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Li tou te gen sorti ki se sikui émettant limyè rele

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sèt segman montre ki montre tan an.

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Sa a se tout kontwole pa yon pwogram ki genyen nan yon

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memwa mikrokontroleur la.

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Koulye a, kite a pran yon gade nan yon senaryo ak wè si nou kapab

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replike revèy la alam ak sa a Arduino.

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W ap pare pou yo ale nan dòmi, men ou pral bezwen yo mete ou

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alam reveye.

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Nou konnen ke lè l sèvi avèk kèk bouton nou ka mete kèk

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varyab, tan, ki bay pwogram nan yon

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kondisyon li dwe satisfè.

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Tankou, lè tan sa a se vre, pwogram lan ta dwe voye

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yon siyal a yon lòt peny ki konekte nan yon oratè.

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Men, lè sa a se siyal resevwa pa oratè a, li

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yo ta dwe jwe yon son terib.

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Se pou nou sèvi ak yon sikwi senp yo ba ou kèk kontèks nan sa

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M ap pale de.

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Se konsa, kounye a ke se alam ou yo mete, se kondisyon ou an kounye a ki estoke

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nan memwa pwogram nan.

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Apre yo te fin sèlman nèf segonn nan dòmi, ou tande terib la

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alam sonnen ale.

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Mwen pral ale pi devan epi ki ploge nan alam nou isit la.

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Koulye a, nou pa vle leve byen ankò, pou nou santi nou pou la

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repetition bouton.

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Nou kite bwete elèv la ap dòmi, oswa entèwonp sa a terib

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son alam, pa jis frape ki bouton.

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Men, sa ki vrèman k ap pase lè pwogram mikrokontroleur la

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resevwa yon siyal soti nan bouton an repetition?

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Oke, lè se bouton an repetition bourade, yon siyal se

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te resevwa sou yon peny diferan.

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An jeneral, lè pwogram lan resevwa sa a enfòmasyon nan men gwoup la

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kloure l 'reyaji lè w rele kèk fonksyon pran reta, oswa dòmi,

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siyal la ki te voye PIN oratè nou an.

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Sa a reta oswa dòmi se pou kèk tan konstan ki

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Jeneralman sa yo se sou nèf minit, oswa nan Arduino tèm, 540.000

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milisgond.

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Si revèy la alam se pa sa chanje la devan repetition nan

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revèy diminye, kondisyon pwogram lan pral voye yon lòt

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siyal a PIN oratè a, enben, vire

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alam la sou ankò.

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Koulye a, sa ki fè Arduino espesyal ki cs50 se li yo

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anviwònman devlopman sèvi ak lang lan C, bay la ou

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pouvwa pou aplike pou konesans te vin nan yon dirèk plis

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men-sou fason.

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Malgre ke nou pa t 'manyen sou broch yo lòt espesyal

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ki patisipe nan Arduino a, mwen rekòmande pou w ale nan nan

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espesifik ak li sou kapasite yo pi lwen.

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Nan yon lòt videyo, nou pral eksplore Arduino la

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anviwònman devlopman sou aparèy la cs50 ak ekri nou an

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premye mikrokontroleur aplikasyon.

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Non mwen se Christopher Batèlmi, sa a se cs50.