I-DHT11 VS DHT22: PINOUT OTHOLAKALAYO NOKUVULA KWESITOLO
2024-10-09 2304

I-DHT11 ne-DHT22 zisetshenziswa kakhulu izinzwa zokulinganisa umswakama kanye lokushisa kuzo zonke izinhlelo zokusebenza ezahlukahlukene, ezisukela eziteshini zezulu nezinhlelo ze-HVAC ezinhlelweni zokuqapha imvelo.Lezi zinzwa zidlala indima ebaluleke kakhulu ekuthuthukisweni kwezinhlelo zokulawula isimo sezulu futhi ziqinisekise ukunemba nokwethenjwa kweqoqo ledatha.I-athikili izolungisa izici ezihlukanisayo ze-DHT11 ne-DHT22, iveze ukuqhathanisa okujulile, futhi inikeze izeluleko ze-pragmatic ngokusetshenziswa okusebenzayo okuhambisana nezidingo ezithile.

Namabhuku

Uyini inzwa ye-DHT11?

Le khasi I-sensor ye-DHT11 Ngu-Asair uvelele amandla ayo okukala izinga lokushisa kanye nomswakama ngokunemba okubonakalayo.Ifakwe nge-NTC Thermistor, ithola ukuguquguquka kwezinga lokushisa ngokunembile, kuyilapho izinqubo ze-microcontroller ezingama-8-bit kanye nemiphumela ephumayo ngefomethi esetshenzisiwe.I-4-PIN yayo elula, iphakethe elilodwa le-single-livensela ukuxhuma, futhi amaphakheji akhethekile ayatholakala ukunakekela izidingo ezihlukile zabasebenzisi.

I-DHT11's 8-Bit Micrococtolller isebenza njengetshe legumbi lokusebenza kwalo, inika amandla ukuphathwa kwedatha efanelekile.I-NTC Thermistor iphendula ngokushesha ekushiseni amashifu, ukuhlinzeka ngokufundwa okuthembekile.Isakhiwo saso esiqondile sephinishi sifuna umzamo omncane ngesikhathi sokuhlanganiswa, ukukwenza kube yi-Go-to to-on for application application.

Uyini inzwa ye-DHT22?

Le khasi I-DHT22 Sensor I-Sensor ye-AoSOng ye-Aosong i-Advanced Signal Adfinition kanye nomswakama ubuchwepheshe bokuzwakala ukuhlinzeka ngemiphumela evuthayo yedijithali.Le fusion iqinisekisa ukuthembeka nokuqina kwenzwa.Ingxenye ebalulekile yalesi Hardware iyi-microcontoller eyi-8-bit eyodwa-chic-chip microcontroller, ethuthukisa ukuqina kwenzwa.

Inzwa ngayinye ye-DHT22 ibhekana nesinxephezelo sokushisa esiqeda kanye nokulinganisa.Lezi zinzwa zilinganiselwe ezindaweni ezilawulwa ngokucophelela ukuze kuqinisekiswe ukunemba okukhulu, futhi ama-coefficients e-calibration agcinwe kwimemori ye-OTP (yesikhathi esisodwa), edlala indima ebalulekile ekugcineni ukufundwa okunembile ngesikhathi sokusebenza.Ngaphezu kwalokho, i-DHT22 isebenzisa amasu wokutholwa wesiginali athuthukile, okufaka isandla ekusebenzeni kwayo okuthembekile.Kuzilungiselelo ezinjengokuqapha imvelo, amasistimu we-HVAC, noma ezolimo, umphumela wedatha onokwethenjelwa we-sensor usekela izinqumo ezibalulekile.I-microcontroller eshumekile engu-8-bit eyodwa-bit eyodwa iqinisa ukusebenza kwayo, ngoba ama-micrococtoctoller anjalo aphatha kahle idatha ye-sensor, eqinisekisa imiphumela esheshayo nenembile.

I-DHT11 PINOUT

Inzwa ye-DHT11 ifaka izikhonkwane ezine: i-VCC, idatha, N / C (ayixhunyiwe), ne-GND.Lo msebenzi oqondile wokucushwa kwe-PIN taturs kalula ukusetshenziswa kwezicelo eziningi.I-PIP ye-VCC ibuza inzwa, ngenkathi iPIN ye-GND isebenza njengesethenjwa somhlaba.I-PIN yedatha isiza ukuxhumana, ukudlulisela izinga lokushisa kanye nomswakama wedatha yomswakama kuma-micrococtollers noma amanye amadivayisi atholayo.

Incazelo ye-PIN enemininingwane

• I-VCC PIN - I-VCC PIN Powers sensor ye-DHT11, edinga uhla lwe-voltage phakathi kwe-3.5v ne-5.5V.Ukuqinisekisa ukuthi okokufaka kwamandla kagesi okulungile kubalulekile ukuze kugcinwe ukusebenza kwenzwa okunembile.Ukungahambelani kwamandla kagesi kungaholela ekufundeni okungalungile noma ukulimala kwe-sensor, kunaka le mininingwane kubalulekile ekusebenzeni kahle.

• I-PIN yedatha - I-PIN yedatha idlulisela idatha yokukhipha kusuka ku-sensor, ixhumeke ngqo kwi-PIN yokufaka yedijithali ku-microcontroller isebenzisa uHlelo Olucacisiwe.Ukuvumelanisa phakathi kwenzwa kanye ne-microcontroller kubalulekile ukugcina ubuqotho bedatha.Ukumelana nokudonsela phansi kungadingeka ukuqinisa ukuxhumana, ukusiza ekugcinweni kokuxhumeka okuqinile.

• I-N / C PIN - Iphinikhodi ye-N / C, okusho ukuthi 'ayixhunyiwe,' ayidingi noma yikuphi ukuxhumana futhi kungashiywa kungaxhunyiwe.Lokhu kwenza lula inqubo yokufaka, ngoba asikho isidingo sokwenza izintambo noma ukucushwa okwengeziwe.Ukuba khona kwalo kusebenza kuphela ukuqondisa ukuhlanganiswa kwe-sensor ekusethweni okuhlukahlukene.

• I-GND PIN - I-PIN ye-GND ixhumanisa inzwa emhlabathini wesifunda, okuyisisekelo ekusebenzeni kwayo okulungile.Ukusungula indawo evamile kuqinisa inkomba ye-voltage ngaphakathi komjikelezo.Lokhu kuxhumana kubalulekile ekunciphiseni umsindo, ngaleyo ndlela kuthuthukise ukunemba kwemininingwane eqoqwe yinzwa.

DHT22 PINOUT

Inzwa ye-DHT22, idume ngendima yayo ekulinganiseni izinga lokushisa kanye nomswakama, ifaka izikhonkwane ezine eziyinhloko: i-VCC (ukunikezwa kwamandla), idatha, i-GND (Ground)

Incazelo ye-PIN enemininingwane

• I-VCC (i-Power Supply) - I-PIN ye-VCC inesibopho sokunika amandla inzwa ye-DHT22.Ngokuvamile kudinga ukufakwa kwamandla kagesi okuvela phakathi kuka-3.3V no-5.5V.Ukusebenzisa amandla kagesi alawulwayo kusiza ekugcineni ukufundwa okuzinzile.Ezimweni zomhlaba wonke zangempela, ukuguquguquka kwamandla okuhlinzekwayo kungaholela ekulinganisweni okungalungile, okwenza kubalulekile ukugcina umthombo wamandla oqinile.

• Idatha - I-PIN yedatha isiza ukuxhumana phakathi kwenzwa ye-DHT22 kanye ne-microcontroller, esebenza nge-protocol yokuxhumana eyodwa.Lokhu kwenza lula i-wiring kepha kudinga isikhathi esiqondile sokubuyiselwa kwedatha okunembile.Amasu ajwayelekile okwenza lokhu kufaka phakathi ukusebenziseka kwemitapo yolwazi noma okuhlanganisa amamojula we-real-time iwashi ukuqinisekisa ubuqotho bedatha.

• I-NC (ayixhunyiwe) - I-NC PIN ayinakho ukusebenza okuqondile futhi ngokuvamile ishiywe ingaxhunyiwe.Ibonisa ukuguquguquka okunokwenzeka kwe-DHT22 okusebenzayo kanye nezithuthukisi zesikhathi esizayo.

• I-GND (Ground) - I-GND PIN igcwalisa umjikelezo ngokuxhumanisa nomhlaba wohlelo.Isisekelo esanele sinciphisa umsindo nokuphazamiseka, okwakungaphazamisa ukufundwa okushisa kanye nomswakama.Amasu aphansi atholakalayo, njengokusebenzisa indiza evamile yomhlaba, abaluleke kakhulu ngokugcina ukusebenza kwenzwa.

Izicelo ezahlukahlukene ze-DHT11 ne-DHT22 Izinzwa

Izinzwa ze-DHT11 ne-DHT22 zithwebula izinga lokushisa kanye nomswakama kubaluleke kakhulu kwizizinda ezahlukahlukene, ukunweba indima yazo kusuka ezilinganisweni ezilula kuya ezinhlakeni ezithuthukile.Nakhu imininingwane eningiliziwe kwizicelo zazo eziguquguqukayo:

Iziteshi Zezulu Zendawo

Ku-Seture Weather Weather Yendawo, lezi zinzwa ziqoqa izinga lokushisa lesikhathi sangempela kanye nemininingwane yomswakama, ukusiza ekubikezelweni okunembile kwe-microclimimatic.Ukukhululeka kwabo kokuhlangana nokuhlangana kwe-microcontrollers kukuvumela ukuthi udale iziteshi zezulu ezithembekile ngaphandle kokulinganisa okubanzi.

Izinhlelo zokulawula okuzenzakalelayo kwesimo sezulu

Ezindaweni ezifuna izimo ezithile zesimo sezulu, lezi zinzwa zibaluleke kakhulu.Kuphakathi kwezinhlelo ze-HVAC, i-DHT11 ne-DHT22 inika amandla amakhaya nezakhiwo zentengiso ukuze zilondoloze amazinga okududuza ngokunembile.Izilinganiso zabo zinomthelela ekuphatheni kwesimo sezulu esisebenza kahle kwamandla, okunikeza hhayi nje kuphela i-ambiance emnandi kodwa futhi nezinzuzo ezibalulekile zokonga izindleko.Ibhalansi yenduduzo nokusebenziseka kuthuthukisa okuhlangenwe nakho nsuku zonke.

Ukuqapha imvelo

Kwezolimo nezesayensi zezemvelo, imali eselwe yemvelo kanye namapharamitha ezemvelo abhekelwa ngokucophelela kusetshenziswa lezi zinzwa.Ezindlini zokugcina izithombo, zigcina isimo sangaphakathi, zithuthukisa impilo yezitshalo efanele.Amaphrojekthi wokulondolozwa kwemvelo amakhulu nawo azuza ukuqoqwa okungaguquki nokunembile kwedatha enikezwe yilezi zinzwa.Iqhaza labo ekukhuliseni ikusasa elizinzile alikwazi ukweqisa, likhulise ukuxhumeka kwemvelo yethu.

Ukulinganisa kanye nokuhlanganiswa

Isici esichazayo sezinzwa ze-DHT11 kanye ne-DHT22 ukulinganisa kwangaphambilini kwangaphambilini, kuqinisekisa ukuhlanganiswa okuhlanganisiwe ezinhlelweni ezikhona.Lokhu kuzuzisa kakhulu ezilungiselelweni zemfundo nezokuhlola lapho ukuthunyelwa okusheshayo kudingekile, ukufinyelela ngentando yeningi ekuqoqweni kwedatha yezemvelo nokuhlaziywa.Ukusebenziseka kalula kukumema ukuthi uhlole futhi uhlanganyele nezinhlelo zezobuchwepheshe.

Ukuthuthukisa ukusebenza kwe-DHT11 kanye ne-DHT22 Sensor Ukusebenza

Izinzwa ze-DHT11 neDHT22 ziyaphawuleka ngokusebenza kwazo okuqondile, ikakhulukazi ngoba zikhipha idatha ye-serial ngqo.Lesi sici sivumela ukuhlanganiswa okungenamsebenzi namapulatifomu ahlukahlukene we-microcontroller.Imvamisa, iphini lemininingwane le-sensror lixhumanisa ne-microcontroller's I / O pin nge-resistor yokudonsa engu-5k, lula ukuhanjiswa kwedatha okuzinzile.

Isikhombimsebenzisi esibonakalayo se-microcontroller

Ukuxhuma izinzwa ze-DHT11 nama-DHT22 kuma-microcontroller afana ne-arduino ethandwa kabanzi elula.Ubuningi bemitapo yolwazi etholakala ngokusetha okusheshayo nokusebenzayo.Isibonelo, umtapo we-DHT esimweni se-Arduino ikuvumela ukuthi uqale ukuxhumana nemigqa embalwa yekhodi.

Ihlanganisa ne-Arduino

Lapho ufunda nge-arduino, imitapo yolwazi etholakalayo ihambelana nenqubo.I-DHT Library ikuvumela ukuthi uthole ukufundwa kwamazinga okushisa kanye nomswakama ngaphandle kwamandla.Le ndlela elula ithole ukugcwala okuthandekayo ezimweni zemfundo, ikusizuzisa ngenqubo yokusetha enembile.

Ngaphezu kokusetha okuyisisekelo

Ngenkathi ukusetha kokuqala kungelula, ukweqa kujula kumakhono wezinzwa kungathuthukisa ukusebenza kahle.Isibonelo, uqonda umehluko phakathi kwezinzwa ze-DHT11 ne-DHT22 mayelana nenembe, uhla lokulinganisa, nesikhathi sokuphendula singathonya kakhulu ukusebenza kwesicelo.I-DHT22 inikeza ukunemba okuphezulu kanye nokulinganisa okubanzi kunale dHT11, okwenza kube yilungele izinhlelo zokusebenza ezifunwa kakhulu.

Izimemezelo ezisebenzayo

Kuzinhlelo zokusebenza ezisebenzayo, amadivaysi aqapha izimo zemvelo, ezifana nezinhlelo zasekhaya ezihlakaniphile, zisebenzisa kakhulu izinzwa ze-DHT.Lezi zinzwa zisiza ekulapheni izimo zezulu zasendlini ngokunikeza idatha yesikhathi sangempela kuma-smart thermostats, zokwenza kahle ukusetshenziswa kwamandla.Babalulekile ezimeni zezolimo lapho umswakama nokulawulwa kokushisa kubalulekile ngempilo yezitshalo.

Izici ze-DHT11 ne-DHT22

Ubuso	DHT11	DHT22
Khokhisa	Izindleko eziphansi ze-Ultra	Izindleko eziphansi
Amandla kanye ne-I / O Voltage	3 kuya ku-5v	3 kuya ku-5v
Ukusetshenziswa kwamanje kwamanje (ngesikhathi sokuguqulwa)	2.5A	2.5A
Ukwakhiwa komswakama	I-20-80% ngokunemba okungu-5%	0-100% ngokunemba okungu-2-5%
Ububanzi bokushisa	0-50 ° C nge- ± 2 ° C ukunemba	-40 kuya ku-80 ° C nge- ± 0.5 ° C ukunemba
Isilinganiso sokusampula	Max 1 hz (kanye njalo ngomzuzwana)	I-MAX 0.5 HZ (kanye (kanye njalo ngemizuzwana emi-2)
Usayizi womzimba	15.5mm x 12mm x 5.5mm	15.1mm x 25mm x 7.7mm
Inani lezikhonkwane	Izikhonkwane ezi-4 ezine-0.1 spacesing	Izikhonkwane ezi-4 ezine-0.1 spacesing

Ukuqhathanisa Ukuqhathanisa: DHT11 VS. DHT22

	DHT11	DHT22
Voltage osebenzayo	3 kuya ku-5v	3 kuya ku-5v
UMax asebenza okwamanje	I-2.5m max	I-2.5m max
Ukwakhiwa komswakama	I-20-80% / ± 5%	0-100% / ± 2-5%
Ububanzi bokushisa	0-50 ° C / ± 2 ° C	-40 kuya ku-80 ° C / ± 0.5 ° C
Isilinganiso sokusampula	1 hz (ukufunda njalo umzuzwana)	I-0.5 hz (ukufunda njalo ngemizuzwana emi-2)
Usayizi womzimba	15.5mm x 12mm x 5.5mm	15.1mm x 25mm x 7.7mm
Imbuyiselo	Izindleko eziphansi ze-Ultra	Kunembe kakhudlwana

Ukugcina

Ekuphetheni, izinzwa ze-DHT11 neDHT22 zinikeza izinzuzo ezihlukile, zibenze zilungele izinhlobo ezahlukene zamaphrojekthi.I-DHT11 iyindlela enhle lapho usebenza kwisabelomali futhi udinga inzwa yokufundwa okuyisisekelo kanye nokufundwa kwamazinga okushisa.Ngakolunye uhlangothi, i-DHT22 ivelele ngokunemba kwayo okuphezulu nobubanzi, okwenza kube kuhle ngezicelo lapho ukunemba kubalulekile khona.Ukukhetha inzwa efanele kuncike kwizidingo zephrojekthi yakho, noma ngabe ubeka phambili izindleko, ukunemba, noma ukulula.Akunandaba noma yimuphi ohamba nawo, zombili izinzwa zingamathuluzi athembekile angakusiza ukuthi uqoqe idatha ebalulekile yezemvelo kahle.

Datasheet pdf

I-DHT11 Sensor Datasheets:

DHT11.PDF

I-DHT22 Sensor Dashasheets:

DHT22.PDF