Thermostat tare da LED nuni
Ana amfani da tsarin don kula da wani zafin jiki a cikin ɗakin da aka sarrafa. A cikin mafita da aka gabatar, an saita zafin kunnawa da kashewa na relay ɗin da kansa, saboda wanda damar saitin a zahiri ba shi da iyaka. Ma'aunin zafi da sanyio zai iya aiki duka a yanayin dumama kuma a yanayin sanyaya tare da kowane kewayon hysteresis. Don ƙirar sa, kawai ta hanyar abubuwa da na'urar firikwensin zafin ruwa da aka yi amfani da shi. Idan ana so, duk wannan zai iya dacewa da yanayin Z-107, wanda aka tsara don shigar da shi a kan mashahurin TH-35 "lantarki" bas.
Tsarin tsari na ma'aunin zafi da sanyio aka nuna a fig. 1. Dole ne a ba da tsarin tare da wutar lantarki akai-akai na kusan 12 VDC, wanda aka haɗa zuwa haɗin X1. Yana iya zama kowane tushen wuta tare da nauyin halin yanzu na akalla 200mA. Diode D1 yana kare tsarin daga juyawa polarity na shigar da wutar lantarki, da capacitors C1 ... C5 aiki a matsayin mains tace. Ana amfani da ƙarfin shigarwar waje zuwa mai sarrafa nau'in U1 nau'in 7805. Ana sarrafa ma'aunin zafi da sanyio ta U2 ATmega8 microcontroller, wanda siginar agogo ta ciki ta rufe, kuma Ana yin aikin firikwensin zafin jiki ta nau'in tsarin DS18B20.
An yi amfani da shi don sadarwa tare da mai amfani nuni mai lamba uku LED. Ana gudanar da sarrafawa da yawa, ana amfani da anodes na fitowar nunin ta hanyar transistor T1 ... T3, kuma ana sarrafa cathodes kai tsaye daga tashar microcontroller ta hanyar iyakance resistors R4 ... R11.
Don shigar da saituna da daidaitawa, ana sanye da thermostat tare da maɓalli S1 ... S3. An yi amfani da relay azaman tsarin gudanarwa. Lokacin tuƙi nauyi mai nauyi, kula da nauyin da ke kan lambobin sadarwa da kuma waƙoƙin PCB. Don ƙara ƙarfin lodin su, kuna iya kwankwasa waƙoƙin ko sanya su da sayar da wayar tagulla.
thermostat dole ne a haɗa shi a kan allunan da'ira guda biyu da aka buga, zane-zane na taron wanda aka nuna a cikin Hoto 2. Ƙungiyar tsarin yana da mahimmanci kuma bai kamata ya haifar da matsaloli ba. Ana aiwatar da shi azaman ma'auni, farawa tare da masu siyar da siyar da sauran ƙananan abubuwa zuwa allon direba, kuma yana ƙarewa tare da shigar da masu amfani da wutar lantarki, stabilizer, relays da dunƙule haɗin gwiwa.
Muna ɗora maɓallan da nuni akan allo. A wannan mataki, kuma zai fi dacewa kafin hada maɓalli da nuni, ya zama dole a yanke shawarar ko za a shigar da ma'aunin zafi da sanyio a cikin gidan Z107.
Idan za a ɗora ma'aunin zafi da sanyio a matsayin daidaitaccen, kamar yadda yake a cikin hoton take, to ya isa ya haɗa faranti biyu tare da ma'aunin kusurwa na fil ɗin zinare. Ana nuna ra'ayi na faranti da aka haɗa ta wannan hanya a cikin hoto na 3. Duk da haka, idan muka yanke shawarar shigar da thermostat a cikin akwati na Z107, kamar yadda yake a cikin hoto 4, to, guda ɗaya mai sauƙi 38 mm tsiri tare da fil na zinariya tare da soket na mace ya kamata ya kasance. ana amfani da su don haɗa faranti biyu. Hana ramuka uku a gaban gaban shari'ar don maɓallan S1…S3. Don tabbatar da tsarin gaba ɗaya ya tabbata bayan taro, zaku iya ƙara ƙarfafa shi tare da wayar da aka yi da azurfa (hoto 5), ƙarin fakitin siyar da fakitin zai taimaka anan.
Mataki na ƙarshe Haɗin firikwensin zafin jiki. Don wannan, ana amfani da haɗin haɗin da aka yiwa alama TEMP: baƙar waya na firikwensin yana haɗa zuwa fil mai alama GND, wayar rawaya zuwa fil mai alamar 1 W, da jan waya zuwa fil mai alamar VCC. Idan kebul ɗin ya yi gajere sosai, ana iya tsawaita ta ta amfani da murɗaɗɗen igiya ko igiyar murya mai kariya. Na'urar firikwensin da aka haɗa ta wannan hanyar yana aiki da kyau har ma da tsayin kebul na kusan m 30.
Bayan haɗa wutar lantarki, bayan ɗan lokaci nunin zai nuna ƙimar zafin da aka karanta a halin yanzu. Ko an sami kuzarin isar da ma'aunin zafi da sanyio yana nuna kasancewar digo a lambobi na ƙarshe na nuni. Ma'aunin zafi da sanyio yana ɗaukar ka'ida mai zuwa: a cikin yanayin dumama, abu yana sanyaya ta atomatik, kuma a cikin yanayin sanyaya, yana mai zafi ta atomatik.
