Ngezinye izikhathi udinga ukwazi izinga lokushisa lento ukude. Kungaba yindlu yokubhema, i-braai, noma ngisho nendlu yonogwaja. Lo msebenzi ungase ube yilokho okufunayo.
Lawula inyama kude, kodwa hhayi ukuxoxa. Iqukethe i-amplifier ye-thermocouple ye-MAX31855 eyenzelwe ukusetshenziswa nama-thermocouple athandwayo e-K. Ixhuma kwi-microcontroller ye-Texas Instruments CC1312 ethumela izilinganiso zokushisa ngephrothokholi engu-802.15.4 lapho ubuchwepheshe obufana ne-Zigbee ne-Thread busekelwe khona. Iyakwazi ukuthumela imiyalezo yomsakazo amabanga amade ngaphandle kokusebenzisa amandla amaningi, okwenza kube nokwenzeka ukusebenzisa ibhethri le-CR2023 coin cell kulo msebenzi. Ihlanganiswe ne-firmware ebeka uhlelo ebuthongweni lapho kungekho zilinganiso ezithathwayo, ilindele ukuthi iphrojekthi isebenze iminyaka eminingana kubhethri elilodwa.
Imilayezo iqoqwa futhi ingeniswe kuzilungiselelo zeGrafana, lapho ingahlelwa khona kalula. Ukuze kuzuze kakhulu, noma yiliphi izinga lokushisa elingaphandle kwebanga elibekiwe lizoqala isexwayiso se-smartphone nge-IFTTT.
Ukuqaphela izinga lokushisa kuyisihluthulelo sokupheka ukudla okumnandi nabantu ababhemayo, ngakho-ke lo msebenzi kufanele usebenze kahle. Kulabo abafuna ukuqapha izinga lokushisa labo bekude ngaphandle kokukhathazeka okukhulu, lokhu kufanele kusebenze futhi!
Esimweni esibi kakhulu, i-thermocouple ngokwayo izosetshenziselwa ukushaja i-capacitor nokunika amandla i-transmitter…
Ngokuqondene nemicabango yakho, indawo engizoqala kuyo kungaba ukufunda iphepha locwaningo lwe-RCA lango-1968 le-NASA ukuze ngibone ukuthi yini okufanele isetshenziswe ngaphakathi kwe-RTG* (ugesi owasetshenziswa ku-Voyager space probe ka-1977 kwakufanele uvele lapha).
Khumbula ukuthi uma ufuna ukusebenzisa i-thermocouple ukukala okuthile, ukuze uthole ukunemba okuphezulu** kungcono ukuthi ungadingi ukugeleza kwamanzi (noma amancane kakhulu).
Kodwa-ke, uma ufuna i-junction ikhiqize amandla, khona-ke udinga ukudonsa ugesi omningi ngangokunokwenzeka ngenkathi wenza ngcono ugesi omkhulu ube ngaphansi kwe-voltage ephezulu (ukwehla kwe-voltage kuyo yonke i-junction kuzoncishiswa kakhulu, kanye nokwehla kuyo yonke intambo yokuxhuma, njengoba inokumelana, ugesi omningi udonsa, kanti ukumelana nakho kuyashintsha ngokushisa - uma ugesi uphakeme, izinga lokushisa liyanda).
Ngizibuza ukuthi kungenzeka yini ukudala imitha engu-2D esheshayo nengcolile lapho ngilinganisa khona ugesi kanye ne-voltage bese ngilinganisa izinga lokushisa. Bese ithebula lokuhlola lisetshenziselwa kuphela ukulinganisa ugesi kanye ne-voltage, hhayi imodi yokukhiqiza, imodi engaguquki, kanye nemodi yokulinganisa izinga lokushisa.
Ngokusebenzisa iwebhusayithi yethu kanye nezinsizakalo zethu, uyavuma ngokusobala ukuthi amakhukhi ethu okusebenza, ukusebenza kanye nokukhangisa abekwe. Funda kabanzi