I-Pushbutton: uyisebenzisa kanjani le nto ilula kunye neArduino

Un iqhosha lokutyhala liqhosha elikuvumela ukuba uphazamise okanye uthumele isiginali ye-elektroniki. Ngale nto ilula idityaniswe nezinye izinto unokwenza iiprojekthi ngobuninzi bezicelo. Ukusetyenziswa kolu hlobo lwee-pushbuttons kuqheleke kakhulu xa kuziwa kwiiprojekthi kunye neArduino. Kwaye ngokudibanisa uninzi lwamaqhosha unokwenza ikhibhodi enzima ngakumbi, nangona sele zikhona iinkqubo zebhodi yezitshixo ezinokusetyenzwa ...

Ngendlela, Kuya kufuneka ungabhidanisi iqhosha lokutyhala ngotshintsho. Zizinto ezahlukeneyo ngokupheleleyo. Umahluko kukuba iswitshi okanye iswitshi yenziwe yasebenza okanye yangasebenzi ngoshicilelo ngalunye olwenziwe kuyo. Ngelixa iqhosha lokutyhala liza kuhlala kwindawo enye ngelixa uxinzelelo lusenziwa kuyo. Ndivakalisile ukuba ingathumela okanye iphazamise, kungenxa yokuba zimbini iintlobo ezingundoqo zamaqhosha.

Kukho HAYI okanye aqhele ukuvula amaqhosha kunye ne-NC okanye ii-pushbuttons ezivaliweyo. Oku kuya kuvelela kuwe ukusuka kulwandiso. Ewe kunjalo ngokufanayo. Xa une-NC, iya kuvumela okwangoku ukuba kudlule kwiitheminali zayo kwaye iphazamise kuphela ngelixa uyicofa. Kwelinye icala, i-NA ayivumeli ukuba kudlule ngoku xa uxinzelelo lungafakwanga kuyo kwaye iya kuyishiya idlule xa uyicofa.

Ukwazi oko, phantse yonke into ofuna ukuyazi malunga neqhosha lokutyhala ukuqala uqhagamshelo lwakho kunye nenkqubo usebenzisa iArduino. Inyani yile yokuba yinto elula kangangokuba akukho nto ingako inokuthethwa malunga nolu hlobo lwee-pushbuttons.

Ukudibanisa iqhosha lokudibanisa neArduino

La ukudibanisa iqhosha lokutyhala ukuyenza isebenzisane neArduino ayinakuba lula. Umzekelo ngumzobo owubonayo kule migca. Inokuba yiyo yonke into efunekayo ukuqala ukuzama. Kodwa ke, ngesikimu akukho nto unokuyenza. Kuya kufuneka ubeke umcabango omncinci wokuthatha isigqibo sokuba leliphi iqhosha eliza kulawula. Ngapha koko, ukuba uhlala ufunda hwlibre.es uya kube sele uwabonile amanye amanqaku apho sisebenzise amaqhosha okutyhala ...

Iindlela zokudibanisa

Inye kuphela into ekufuneka uyazi ngumba we-anti-bounce kwaye uzidibanisa njani ii-pushbuttons. Kuqala siya kwindlela yokudibanisa, osele uyazi ukuba inokuba kukutsala kunye nokuphikisa ezantsi:

• Nyusela phezulu-Ukusetwa kwesixhathisi, xa iqhosha lokucinezela licinezelwe, i-microcontroller okanye iArduino inokubona okanye ifunde i-zero kuloo pini. Oko kukuthi, iyitolika njengophawu olusezantsi.
• Yehlisa: Kule meko ichaseneyo, unokufunda okanye ufumane isiginali eyi-1 okanye EPHAKAMILEYO ngepini edityanisiweyo.

Sukuyibhida ne-NC okanye i-NA, eyenye into eyahlukileyo njengoko sibonile ngaphambili. Oku kuzimeleyo kwenye ...

Ulwaphulo-mthetho

Iibhola ezinamandla zine isiphumo esiphakamileyo xa ucinezelwe. Oko kukuthi, xa icinezelwe okanye ikhutshwe kukho ukuhla kumqondiso odlula kubafowunelwa bayo kwaye kunokubangela ukuba ihambe ukusuka kwi-HIGT iye kwi-LOW state okanye ngokuchaseneyo ngaphandle kokufuna ukuba yenzeke. Oko kunokuvelisa isiphumo esingafunekiyo kwiArduino kwaye kuyenze yenze izinto ezingaqhelekanga, ezinje ngokwenza into ethile xa sifuna ukuyicima ngeqhosha lokutyhala, njl. Kungenxa yokuba iArduino iguqulela ii-bounces ngokungathi icinezelwe ngaphezulu kwakanye ...

Iziphumo ezingalunganga inesisombululo. Kule nto, i-capacitor encinci kufuneka iphunyezwe kwisekethe ye-anti-bounce (indlela yehardware) okanye isoftware (ukuguqula ikhowudi yemvelaphi), nokuba kusetyenziswa ukumisa okanye ukutsala ubumbeko okanye ukuba yi-NC okanye HAYI. Kuwo onke la matyala, isisombululo kufuneka senziwe ukunqanda oku kubuyela umva.

Umzekelo, tsala kunye nokutsala ezantsi imijikelezo ene capacitor anti-bounce bajonge into enje:

Ngoxa i indlela yesoftware Inokubonwa kule khowudi snippet:

ukuba (digitalRead (iqhosha) == LOW) // Jonga ukuba iqhosha licinezelwe
{
ucinezelwe = 1; // Ixabiso lokutshintsha eliguqukayo
}
ukuba (yedijithaliRead (iqhosha) == PHEZULU && icinezelwe == 1)
{
// Yenza isenzo esifunekayo
ucinezelwe = 0; // Umahluko ubuyela kwixabiso lawo loqobo
}

Umzekelo weprojekthi olula

Nje ukuba sifunde umxholo weendlela zokudibanisa iqhosha lethu kunye neesekethe ezichasayo, siza kubona umzekelo osebenzayo lawula i-LED ngeqhosha lokutyhala. Iskimu silula ngokulinganayo njengoko ubona.

Nje ukuba uqhagamshelwe ngokuchanekileyo, into elandelayo ukubhala ikhowudi kwi-Arduino IDE udweliso lwenkqubo lenjongo yakho kwaye uqalisa ukuzama ngamaqhosha. Umzekelo olula wekhowudi yokulawula isekethe yethu iya kuba yile ilandelayo:

// Umzekelo womzobo wokulawula iqhosha
ipini = 2;
imeko;
ukubetha int = 0;
ukuseta okungenanto ()

{
i-pinMode (2, INPUT); // Ukufunda ukubetha ngokwenza loo pin ukufaka

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

Uthotho. (9600);
}
iluphu engenanto ()

{
ukuba (digitalRead (2) == Phezulu)

{

ikhonkco = 2;

Ukuchasana (); // Fowunela umsebenzi wokuchasana

}
}
// Umsebenzi we-Software anti-bounce
ukungasebenzi kwe-anti-bounce ()

{
ngelixa (digitalRead (pin) == LOW);
imeko = UkuFunda kwidijithali (13);
Ukubhala kwidijithali (13 ,! ilizwe);
ngelixa (digitalRead (pin) == Phezulu);

}