I-Pushbutton: ungayisebenzisa kanjani le nto elula ne-Arduino

Un inkinobho ecindezelwayo iyinkinobho ekuvumela ukuthi uphazamise noma uthumele isignali kagesi. Ngale nto elula ehlanganiswe nezinye izinto ungakha amaphrojekthi ngenqwaba yezinhlelo zokusebenza. Ukusetshenziswa kwalolu hlobo lwama-pushbutton kuvame kakhulu uma kukhulunywa ngamaphrojekthi ane-Arduino. Futhi ngokuhlanganisa eziningana zalezi zinkinobho ungakha ikhibhodi ethande ukuba yinkimbinkimbi, yize kunamakhibhodi ahleliwe asetshenzisiwe ...

By indlela akufanele udide inkinobho yokuchofoza ngenkinobho. Ziyizinto ezihluke ngokuphelele. Umehluko ukuthi iswishi noma iswishi iyasebenza noma ayisebenzi ngomshini ngamunye owenziwa kuyo. Ngenkathi inkinobho yokuPhusha izohlala endaweni eyodwa kuphela ngenkathi kufakwa ingcindezi kuyo. Ngiphawule ukuthi ingathumela noma iphazamise, lokho kungenxa yokuthi kunezinhlobo ezimbili eziyisisekelo zezinkinobho.

Kukhona AYIKHO noma ama-pushbutton avulekile avamile ne-NC noma ama-pushbuttons avaliwe. Lokhu kuzophinde kuzwakale kuwe kusuka ekudlulisweni. Futhi yebo, kungukusebenza okufanayo. Uma une-NC, izovumela okwamanje kudlule kumatheminali ayo futhi iphazamise kuphela ngenkathi uyicindezela. Ngakolunye uhlangothi, i-NA ayikuvumeli ukudlula kwamanje lapho ingcindezi ingekho kuyo futhi izoyidedela idlule lapho uyicindezela.

Ukwazi lokho, cishe yonke into odinga ukuyazi ngenkinobho yokuPhusha ukuqala ukuxhumana kwakho nokuhlela usebenzisa i-Arduino. Iqiniso ukuthi liyinto elula kangangoba akukho okuningi ongakusho ngalolu hlobo lwama-pushbuttons.

Ukucindezela Inkinobho Ukuhlanganiswa ne-Arduino

La ukuxhuma ibhathini ukuyenza ihlanganyele ne-Arduino akunakuba lula. Isibonelo ngumdwebo ongawabona kule migqa. Lokho kuzoba yikho konke okudingekayo ukuqala ukuzama. Kepha-ke, ngalolo hlelo awukwazi ukwenza okuncane. Uzodinga ukubeka umcabango omncane ukunquma ukuthi leyo nkinobho izophatha ini. Eqinisweni, uma ufunda kaningi i- hwlibre.es uzobe usuvele uzibonile ezinye izindatshana lapho sisebenzise khona izinkinobho zokucindezela ...

Izindlela zokuyixhuma

Into eyodwa okufanele uyazi udaba lwe-anti-bounce futhi ungawaxhuma kanjani la ma-pushbuttons. Okokuqala siya endleleni yokuzixhuma, osuvele wazi ukuthi zingaba nama-resistor wokudonsa nokudonsa phansi:

• Donsela phezulu- Ngalesi silungiselelo sokuphikiswa, lapho inkinobho yokucindezela icindezelwe, i-microcontroller noma i-Arduino ingabona noma ifunde uziro kuleyo phini. Lokho wukuthi, ukuhumusha njengesiginali EPHANSI.
• Donsela phansi: Kulokhu kuphambene, ungafunda noma wamukele isiginali engu-1 noma EPHAKEME ngepini exhunyiwe.

Ungayididanisi ne-NC noma i-NA, okunye okuhlukile njengoba sibonile phambilini. Lokhu kuzimele kokunye ...

I-Anti-Bounce

Ama-pushbuttons ane- umphumela wokuxhuma lapho icindezelwe. Okusho ukuthi, uma icindezelwa noma ikhishwa kukhona ukuguquguquka kwesiginali esidlula koxhumana nabo futhi kungadala ukuthi isuke esimweni se-HIGT iye KULOKUPHELA noma okuphambene nalokho ngaphandle kokufuna ukuthi lokho kwenzeke. Lokho kungaveza umphumela ongadingeki ku-Arduino futhi kuyenze yenze izinto ezingajwayelekile, njengokusebenzisa into lapho besifuna ukuyicisha ngenkinobho yePush, njll. Kungenxa yokuthi i-Arduino ihumusha ama-bounces njengokungathi icindezelwe kaningi ...

Lowo mphumela omubi inesixazululo. Ngalokhu, i-capacitor encane kufanele isetshenziswe kumjikelezo we-anti-bounce (indlela yehadiwe) noma isoftware (ukuguqula ikhodi yomthombo), noma ngabe ukucushwa kokudonsa noma kokudonsela phansi kusetshenzisiwe noma ngabe kuyi-NC noma CHA. Kuwo wonke lawa macala, isixazululo kufanele sisetshenziselwe ukugwema lokhu kubuyela emuva.

Isibonelo, ukudonsa nokudonsa phansi amasekethe ane- i-anti-bounce capacitor babebukeka kanjena:

Ngenkathi i indlela yesoftware Kungabonakala kule snippet yekhodi:

uma (digitalRead (inkinobho) == LOW) // Bheka ukuthi inkinobho icindezelwe yini
{
kucindezelwe = 1; // Inani lezinguquko eziguqukayo
}
uma (digitalRead (inkinobho) == HIGH && icindezelwe == 1)
{
// Yenza isenzo osifunayo
kucindezelwe = 0; // Okuguqukayo kubuyela kunani lakhona loqobo
}

Isibonelo sephrojekthi esilula

Lapho nje sesifunde isihloko sezindlela zokuxhuma inkinobho yethu yokuchofoza kanye nesekethe elwa nokubuyela emuva, sizobona isibonelo esisebenzayo lawula i-LED ngenkinobho yokucindezela. Isikimu silula ngokulinganayo njengoba ubona.

Uma sekuxhunywe kahle, into elandelayo ukubhala ikhodi eku-Arduino IDE ukuhlela iphaneli yakho bese uqala ukuzama izinkinobho. Isibonelo esilula sekhodi ukulawula isifunda sethu kungaba okulandelayo:

// Isibonelo somdwebo wokulawula inkinobho
iphini = 2;
isimo;
ukudonsa int = 0;
ukusetha okungenalutho ()

{
i-pinMode (2, INPUT); // Ukufunda ishayela ngokwenza lokho kufakwa kwephini

i-pinMode (13, OUTPUT); // Ye-LED

Serial.begin (9600);
}
iluphu engenalutho ()

{
uma (digitalRead (2) == HIGH)

{

iphini = 2;

i-antiBounce (); // Shayela umsebenzi we-anti-bounce

}
}
// Umsebenzi wokulwa ne-Software
i-anti-bounce ()

{
ngenkathi (digitalRead (pin) == LOW);
isimo = digitalRead (13);
digitalWrite (13 ,! isimo);
ngenkathi (digitalRead (pin) == HIGH);

}