I-DIY Electronic DC 5-7.5V MQ-3 I-Alarm System Yesitholi Sotshwala Nekhithi Yenzwa Yegesi (10006455)
Incazelo: Isekhethi ye-alamu yokuhlushwa kotshwala Lo mjikelezo ngokuyinhloko uwumjikelezo wokulawula i-alamu owakhiwe iqembu lezinzwa zegesi i-MQ-3. Uma inzwa ye-MQ-3 isendaweni lapho umhwamuko wotshwala ukhona, ukuqhutshwa kwenzwa kuzofana nokuhlushwa komhwamuko wotshwala. Khulisa wande. Ngokulinganisa uchungechunge lwengcindezi eyingxenye phakathi kwenzwa kanye nesiphikisayo esigxilile, okuqukethwe kotshwala endaweni kungahlulelwa.
Ipharamitha: I-voltage esebenzayo: DC 5-7.5V
Incazelo Yesifunda: Lo mjikelezo unganikwa amandla amandla kagesi angu-5-7.5V DC, i-switch S1 iwukushintsha amandla, i-resistor R1 ne-LED D1 isetshenziselwa inkomba yamandla. I-sensor yangaphakathi ye-MQ3 idinga ukushiswa ekushiseni okuthile ngesikhathi sokusebenza, ngakho ukufakwa kwayo kwangaphakathi Kukhona ucingo lokushisa, i-resistor R4 iyisinqamuleli samanje sokunciphisa ucingo lokushisa, futhi ukushisa kwe-MQ-3 kuvamile ngemva kokukhanyisa amandla. Uma i-MQ-3 ingawuboni umhwamuko wotshwala, ukumelana kwayo kwangaphakathi kukhulu kakhulu, ukwehla kwamandla ka-R3, i-RW iphansi kakhulu, i-voltage ye-pin 2 ye-NE555 iphansi kune-trigger voltage (VCC / 3), ukuphuma kwayo kwe-3 pin kuyizinga eliphezulu, i-D2 icishiwe. I-buzzer ayizwakali futhi i-relay ayinyakazi. Uma i-MQ-3 ibona umhwamuko wotshwala, ukumelana kwangaphakathi kuncipha, i-voltage engu-R3, i-RW ikhuphuka, i-voltage ye-pin 2 ye-NE555 iphakeme kune-trigger voltage, iphinikhodi engu-3 iba yizinga eliphansi, i-D2 ivula ukukhanya, futhi i-buzzer igeleza. I-current iqala ukuzwakala, futhi ikhoyili kagesi ku-relay inika amandla ukuheha iswishi. Ngaleyo ndlela iqalisa umsebenzi wokutholwa kwe-alamu. I-RW resistable resistable isetshenziselwa ukulungisa ukuzwela kokutholwa. Lo mjikelezo usebenzisa isiqhathanisi sesibili ngaphakathi kwe-NE555 ukuthola izinguquko zamandla kagesi, kusetshenziswa i-trigger yangaphakathi ukuze ihlehlise. Amafidi angu-7 no-5 we-NE555 awasetshenziswa futhi ashiywe entanta. Itheminali ephumayo engu-J3 ye-relay ingasetshenziswa ukulawula ezinye izinto zikagesi, njengezifeni ezikhipha umoya. Uma ukugxiliswa kotshwala kweqa izinga, ifeni yokukhipha umoya iyasebenza. Ngemva kokwehla kokugxilisa ingqondo, isiphephetha-moya siyacishwa ukuze sikwazi ukulawula okuzenzakalelayo. I-Diode D3 isetshenziselwa ukuqeda amandla e-electromotive akhangwe lapho ikhoyili edluliswayo ivuliwe futhi ivaliwe. I-interface yokuhlinzeka amandla ingaba ipulaki ye-DC, noma ulayini ungaba ngokuqondile endaweni ye-J2, unake izimpawu ezinhle nezingezinhle, futhi ipulaki ye-DC inegethivu yangaphakathi nangaphandle.
