DHT11 vs Dht22: Detout SETOUT ndi Fananizo
2024-10-09 2293

DHT11 ndi DHT22 amagwirizanitsa masensa ogwirizira chinyezi komanso kutentha kosiyanasiyana pamapulogalamu, kuyambira nyengo yanyengo ndi hvac systems ku matope owunikira zachilengedwe.Ma sopo amatenga gawo lofunikira pakukula kwa njira zowongolera nyengo ndikuwonetsetsa kuti ndi kudalirika ndi kudalirika kwa zosonkhanitsa deta.Nkhaniyi idzachitika mu mawonekedwe a Dht11 ndi Dht22, kuwonetsa mozama, ndikupereka upangiri wa pragmuc pa Ugwiririka Zogwiritsa Ntchito Zoyenera.

Kataloji

Kodi DHT11 ndi chiyani?

A DHT11 sensor Mwa Asiaf akupita kuti azitha kugwiritsa ntchito kutentha ndi chinyezi ndi chinyezi.Okonzeka ndi Thermaritor, amapeza kusintha kwa kutentha molondola, pomwe magawo 8-bit a microcorlints ndipo amatulutsa deta yotulutsa mu mawonekedwe.Ndi pini yake yopanda tanthauzo 4-pini, mzere umodzi-mzere umawonjezera kulumikizana, ndipo mapaketi apadera amapezeka kuti awonetse zofuna za ogwiritsa ntchito.

DHT11's 8-bicrocorceler imagwira ntchito ngati mwala wamayendedwe ake, wothandiza kugwiritsa ntchito bwino.The NTC Thermar mwachangu amayankha kutentha, kupereka kuwerenga kodalirika.Makina ake owongoka amatanthauza kuyesetsa kochepa pakuphatikizidwa, kumapangitsa kuti zitheke pamapulogalamu osiyanasiyana.

Kodi DHT22 sensor ndi chiyani?

A DHT22 sensor Sensor ndi aosong mitu yapamwamba yopeza zikwangwani ndi chinyezi chanzeru kuti mupereke zotuluka zamatsenga.Izi zimapangitsa kudalirika kwa sensor ndi kukhazikika.Gawo lofunika kwambiri lazovala ndi 8-bit imodzi imodzi-chip mu microcroller, yolimbikitsani kukhazikika kwa seweroli.

Sensor iliyonse ya DHT22 imatha kutentha kwambiri.Izi zimadziwika bwino m'malo olamulidwa mokwanira kuti mutsimikizire kuti muyenera kulondola kwambiri, ndipo ma coibracations ogwiritsira ntchito amasungidwa mu OTP (nthawi imodzi) kukumbukira, kusewera kofunikira pakupitiliza kuwerenga kolondola pakugwiritsa ntchito.Komanso, DHT22 imagwiritsa ntchito njira zapamwamba zodzipha, zimathandizira kuchita zodalirika.M'mayiko monga kuwunika kwachilengedwe, hvac sysms, kapena ulimi, deta yodalirika ya sensor imathandizira kupanga chisankho.The End-Big-Big Microcoller imalimbikitsa magwiridwe ake, chifukwa monga microcorrorler moterel amawongolera deta, onetsetsani kuti zotulukazo komanso zolondola.

DHT11 PEMUT

Sensor ya DHT11 imakhala ndi zikhomo zinayi: vcc, deta, n / c (osalumikizidwa), ndi GND.Kusintha kwa zitsulo chowongoka kumeneku kumasuka kugwiritsidwa ntchito pamapulogalamu ambiri.Pulogalamu ya VCC PINER imapanga sensor, pomwe pini ya GNS imakhala ngati cholembera pansi.Pini ya data imathandizira kulumikizana, kufalitsa kutentha ndi chinyezi chidziwitso cha microcorser kapena zida zina zolandila.

Kufotokozera mwatsatanetsatane

• VCC PIN - PIN PINAMVE PANGANI WA DHT11 sensor, yofunikira kusiyana pakati pa 3.5v ndi 5.5V ndi 5.5V.Kuonetsetsa kuti magetsi olondola ndikofunikira kuti musunge sensor yolondola.Zosasinthika zamagetsi zimatha kuwerengera molakwika kapena kuwonongeka kwa sensor, kuganizira mwatsatanetsatane tsatanetsatane kuti muchite bwino.

• Pini ya data - pini ya data imatumiza deta yotulutsa kuchokera ku sensor, yolumikiza mwachindunji ku pini ya digito pa protocol yolumikizirana.Kulumikizana pakati pa sensor ndipo microcontrolry ndikofunikira kuti asunge kukhulupirika kwa data.Konzani zopendekera zitha kukhala zofunikira kukhazikitsa kulumikizana, kuti muchepetse kulumikizana.

• N / C pini - NE / C Pini, kutanthauza 'kusalumikizidwa,' sikufunikira kulumikizana kulikonse ndipo zitha kusiyidwa osayankhidwa.Izi zimalepheretsa kukhazikitsa, chifukwa palibe chifukwa chowonjezera kapena ziwerengero zowonjezera.Kupezeka kwake kumathandizira kulowera kuphatikizidwa kwa sensor mu ma sectup osiyanasiyana.

• GMD pini - pini ya GNT imalumikiza sensor kupita ku malo ozungulira, yomwe ili yofunika kuti igwire ntchito molondola.Kukhazikitsa malo wamba kukhazikika kwa madera omwe ali m'deralo.Kulumikizana uku ndikofunikira kuti muchepetse phokoso, motero kukulitsa kulondola kwa zomwe zasonkhanitsidwa ndi sensor.

DHT22 TUTUT

Sensor ya DHT22, adakondwerera gawo lake poyesa kutentha ndi chinyezi

Kufotokozera mwatsatanetsatane

• vcc (magetsi) - pini ya VCC ndiyofunika kuwongolera sensor ya DHT22.Nthawi zambiri zimafuna kuti mphamvu yamagetsi ifike pakati pa 3.3v ndi 5.5V.Kugwiritsa ntchito mphamvu zoyendetsedwa kumathandizira kukhalabe owerenga.M'zaka zenizeni zadziko lapansi, kusinthasintha kwa magetsi kumatha kubweretsa njira zolondola, kupangitsa kuti ndikofunikira kukhalabe ndi gwero lokhazikika.

• Zambiri - Pini ya data imathandizira kulumikizana pakati pa sensor ya DHT22 ndi microcorrylerler, yomwe imagwira ntchito kudzera mu protocol imodzi.Izi zimalepheretsa kuipitsa koma zimafuna nthawi yolondola kuti mupeze zolondola.Njira zodziwika bwino kuti mukwaniritse izi zimaphatikizapo kugwiritsa ntchito maibulale a nthawi kapena kuphatikiza ma module zenizeni kuti atsimikizire kukhulupirika kwanthawi.

• NC (yosalumikizidwa) - pini ya nc ilibe magwiridwe antchito ndipo nthawi zambiri amasiyidwa osagwidwa.Zimayimira kusintha kwa DHT22 komanso kuthekera kwamtsogolo.

• GMN (nthaka) - pini ya GND imaliza dera lolumikizirana ndi dongosolo.Kugwedeza kokwanira kumachepetsa phokoso komanso kusokoneza, zomwe sizingawononge kutentha ndi kuwerenga chinyezi.Njira zolimbikitsira, monga kugwiritsa ntchito ndege wamba, ndikofunikira kuti musunge sensor.

Mapulogalamu osiyanasiyana a DHT11 ndi DHT22 sensors

Zowonjezera za DHT11 ndi DHT22 zimagwira deta ndi chinyezi chofunikira kwambiri pamadera osiyanasiyana, zomwe zimawonjezera udindo wawo kuchokera ku miyeso yosavuta kupita ku zinthu zotsogola.Apa ndi chidziwitso chatsatanetsatane mu ntchito zawo:

Malo a Weather Weather

M'mafayilo owunikira kwambiri, izi zimatenga kutentha kwa nthawi yeniyeni ndi deta ya chinyezi, kuthandiza kulosera kolondola.Kulephera kwawo kusokoneza ndi microcorlerland kumakupatsani mwayi wopanga nyengo yodalirika yopanda utumwi.

Njira Zowongolera Zokha

M'malo okakamira nyengo inayake, masensa awa ndi othamangitsa.Munjira za Hvac, DHT11 ndi DHT22 zimathandizira nyumba ndi nyumba zotsatsa kuti zikhale zolimbikitsa ndendende.Miyeso yawo imathandizira kuti muchepetse nyengo yothandiza, osangopereka mwayi wosangalatsa komanso phindu lalikulu lopulumutsa.Kusamala kwa chitonthozo komanso kuthekera kumathandizira zomwe zimachitika tsiku lililonse.

Kuyang'anira zachilengedwe

Pa sayansi yaulimi komanso yazachilengedwe, zachilengedwe komanso zachilengedwe zimayang'aniridwa mozama pogwiritsa ntchito ma sensor awa.M'malo obiriwira, amasungabe nyengo yamkati, yolimbikitsa thanzi labwino.Ntchito zazikulu zachilengedwe zotetezedwa zachilengedwe zimapindulanso ndi zosonkhanitsidwa ndi zolondola za deta zomwe zimaperekedwa ndi masensa awa.Udindo wawo wolimbikitsa mtsogolo mokhazikika sungathe kufalikira, kulitsa zochita za chilengedwe chathu.

Kambuku ndi kuphatikiza

Chovuta cha DHT11 ndi DHT22 masensa ndi fakitale yawo isanakwane, kuonetsetsa kuphatikiza njira zomwe zilipo.Izi ndizopindulitsa kwambiri pakukonzekera maphunziro ndi zoyeserera pomwe kutumizidwa kofulumira ndikofunikira, demokalase mwayi wopereka deta ya chilengedwe ndi kusanthula kwa deta.Kusavuta kugwiritsa ntchito kumakuitanirani kuti mufufuze ndikuchita ndi ntchito zaukadaulo.

Kukulitsa DHT11 ndi DHT22 sensor amagwira ntchito

Zowonjezera za DHT11 ndi DHT22 ndizodziwika bwino chifukwa cha ntchito zawo zowongoka, makamaka chifukwa zimatulutsa zambiri zosasinthika.Izi zimathandizira kuphatikiza kwamachitidwe ogwiritsa ntchito nsanja zosiyanasiyana za microcorleller.Nthawi zambiri, pini ya data ya sensor imalumikizana ndi incrocy's In / O O / O SIA opindika 5k, kufalitsa deta yokhazikika.

Microcontlermer mawonekedwe

Kulumikiza DHT11 ndi DHT22 masensa kwa microcororser monga arruuino okondedwa amakhala osavuta kwambiri.Kuchuluka kwa malamulo omwe alipo kwa Edzi mwachangu komanso moyenera.Mwachitsanzo, laibulale ya DHT imakupatsani mwayi woyambitsa kulankhulana ndi zigawo zingapo.

Kuphatikiza ndi Ardeino

Mukakhala ndi arruino, malo osungira mabuku omwe alipo.Library ya DHT imakuthandizani kuti muchepetse kutentha ndi chinyezi mosasamala.Njira yabwinoyi yapeza ulemu m'mabuku ophunzitsira, ndikukupindulitsani kudzera pakukhazikitsa

Kupitilira kukhazikitsa

Kukhazikitsa koyambirira sikuvuta kwambiri, ndikuchotsa mwakuya mu luso la masensa awa kumatha kukulitsa mphamvu.Mwachitsanzo.DHT22 imapereka kulondola kwambiri komanso muyeso wokulirapo kuposa DHT11, ndikupangitsa kuti ikhale yofunika kwambiri.

Magwiridwe Othandiza

Pamapulogalamu othandiza, zida zowunikira zilengedwe, monga njira zanzeru zakunyumba, kugwiritsa ntchito masensa a DHT.Izi zimathandizira pakukonzanso nyengo monga kupereka deta zenizeni ku matewa anzeru, potero kukhathanso kugwiritsa ntchito mphamvu.Ndizofunikira pazolima zomwe zimakhala chinyezi komanso kutentha kwa kutentha ndikofunikira kwa thanzi la mbewu.

DHT11 ndi DHT22

Kaonekedwe	Dht11	Dht22
Ika mtengo	Ultra-yotsika mtengo	Mtengo wotsika
Mphamvu ndi i / o magetsi	3 mpaka 5V	3 mpaka 5V
Kugwiritsa Ntchito Kwakale (pakutembenuka)	2.5Ma	2.5Ma
Chinyezi	20-80% yokhala ndi zolondola 5%	0-100% ndi 2-5% kulondola
Kutentha	0-5 ° C ndi ± 2 ° C Olondola	-40 mpaka 80 ° C ndi ± 0,5 ° C Olondola
Mtengo Wapamwamba	Max 1 HZ (kamodzi sekondi iliyonse)	Max 0.5 HZ (kamodzi pa masekondi awiri)
Kukula kwa thupi	15.5mm x 12mm x 5.5mm	15.1mm x 25mm x 7.7mm
Chiwerengero cha zikhomo	Mapainilo 4 okhala ndi 0,1 "	Mapainilo 4 okhala ndi 0,1 "

Kusanthula Kufananiza: DHT11 VS. DHT22

	Dht11	Dht22
Mphamvu yamagetsi	3 mpaka 5V	3 mpaka 5V
Max ogwira ntchito pano	2.5A max	2.5A max
Chinyezi	20-80% / ± 5%	0-100% / ± 2-5%
Kutentha	0-5 ° C / ± 2 ° C	-40 mpaka 80 ° C / ± 0,5 ° C
Mtengo Wapamwamba	1 hz (kuwerenga sekondi iliyonse)	0.5 hz (kuwerenga masekondi awiri aliwonse)
Kukula kwa thupi	15.5mm x 12mm x 5.5mm	15.1mm x 25mm x 7.7mm
Mwai	Ultra mtengo wotsika	Molondola kwambiri

Mapeto

Pomaliza, onse a DHT11 ndi DHT22 amapereka mapindu apadera, kuwapangitsa kukhala oyenera mitundu yosiyanasiyana ya ma projekiti osiyanasiyana.DHT11 ndi njira yabwino mukamagwira ntchito ndi ndalama ndipo mumafunikira sensor ya chinyezi choyambirira komanso kutentha.Kumbali inayo, DHT22 imayimilira ndi kulondola kwakukulu ndi mitundu yonse, ndikupangitsa kukhala koyenera kugwiritsa ntchito komwe kumayambitsa kukayikira.Kusankha sensor yolondola kumadalira zofunikira za polojekiti yanu, ngakhale mukuyang'ana mtengo, kulondola kapena kuphweka.Ziribe kanthu kuti ndi ndani amene mumapita naye, ma tynera onse ndi zida zodalirika zomwe zingakuthandizeni kutolera zinthu zofunikira zachilengedwe.

Datasheet Pdf

DHT11 sensor datandas:

Dht11.pdf

DHT22 sensor Datastaets:

Dht22.pdf