labarai

Wani lokaci duk abin da ake buƙata don gina wani abu mai ban sha'awa shine a haɗa tsoffin sassa iri ɗaya ta hanyoyi daban-daban.[Sayantan Pal] yayi wannan don matrix na RGB LED mai tawali'u, ƙirƙirar sigar ultra-bakin ciki ta hanyar saka WS2812b NeoPixel LED a cikin PCB.
Shahararriyar WS2812B tana da tsayin 1.6 mm, wanda ya faru ya zama kauri na PCB da aka fi amfani dashi.Ta amfani da EasyEDA, [Sayantan] ya tsara matrix 8 × 8 tare da kunshin WS2812B da aka gyara. An ƙara ɗan ƙaramin yanke don ƙirƙirar juzu'i mai dacewa. ga LED, da pads aka koma baya na panel a waje da cutout da kuma aikin da aka jujjuya su. PCB yana harhada fuska kasa, kuma duk pads da aka sayar da hannu. dan kadan yana ƙara kauri gaba ɗaya na panel, kuma maiyuwa bazai dace da samarwa ta amfani da zaɓi na gargajiya da taron wurin ba.
Mun riga mun ga wasu hanyoyi masu kama da PCB ta yin amfani da PCBs masu launi.
Wannan ya kamata ya zama sabon ma'auni na marufi abubuwa!Amfani da cheap hudu-Layer jirgin, ba mu bukatar sosai wayoyi yankin, kuma za a iya sauƙi a socketed ko da hannu soldered don maye gurbin DIP.You iya surface Dutsen inductor kai tsaye a saman. guntu a cikin PCB na duk abubuwan da ke cikin sa.
Yanke na iya zama ɗan karkata ko siffa mai siffar mazurari kuma ana yin shi ta hanyar mai yankan Laser, don haka wedging ɓangaren baya buƙatar daidaito sosai kuma ana iya sake yin aiki ta hanyar dumama da turawa daga wancan gefe.
Don jirgi kamar hoto a cikin labarin, Ba na tsammanin yana buƙatar ya wuce 2L. Idan za ku iya samun LEDs a cikin kunshin "gull-wing", za ku iya samun sassauƙa mai laushi da bakin ciki.
Ina mamakin ko zai yiwu a yi amfani da Layer na ciki don hana sayarwa a kan layi na waje (ta hanyar yin ƙananan yanke don samun dama ga waɗannan yadudduka, don haka mai siyar zai zama mai laushi.
Ko kuma a yi amfani da manna solder da tanda.A yi amfani da 2mm FR4, sai a zurfafa aljihun 1.6mm, sai a sa pad ɗin a ƙasan ciki, sai a shafa man solder ɗin a daka shi a cikin tanda.Bob ɗan'uwan mahaifinka ne, LEDs kuma suna da ruwa.
Kafin karanta dukan labarin, Ina tsammanin mafi kyawun canja wurin zafi zai zama abin da aka mayar da hankali ga wannan dan gwanin kwamfuta. Tsallake jan karfe na allon n-Layer, kawai sanya kowane nau'in zafin rana a baya, tare da wasu pads na thermal (ba su sani ba). madaidaicin kalmomi).
Kuna iya sake kwarara LED ɗin zuwa nau'in fim ɗin polyimide (Kapton) da aka buga da'ira maimakon sadar da hannu duk waɗannan haɗin gwiwar a gefen baya: kauri mil 10 kawai, wanda zai iya zama sirara fiye da bumps na hannu.
Shin tsarin gama gari na waɗannan bangarorin ba sa amfani da madaidaicin madauri? Nawa ne kamar wannan. Yadudduka biyu, don haka akwai wasu ɓarnawar zafi-wanda ake buƙata sosai don waɗannan manyan tsararru. Ina da 16 × 16, yana iya sha mai yawa. na halin yanzu.
Na gwammace in ga wani ya zana PCB-an aluminium core Layer manne ga wani yanki na aluminum.
Linear (1-D) tube yawanci ana samun su akan sassa masu sassauƙa. Ban ga panel mai girma biyu da wannan tsarin ba. Shin akwai hanyar haɗi zuwa wanda kuka ambata?
A bakin ciki aluminum core PCB yana da amfani a matsayin zafi nutse, amma har yanzu samun zafi: kana bukatar ka watsar da zafi a wani wuri a karshen. Domin ta mafi girma ikon tsararru, Na laminated polyimide m (ba amide!) Substrate kai tsaye uwa wani Babban finned zafi nutse tare da thermal epoxy.Ba na amfani da matsa lamba m manne iri.Ko da akwai kawai convection, yana da sauki juji>1W/cm^2. Zan gudu a 4W/cm^2 na 'yan mintoci a. wani lokaci, amma ko da tare da zurfin 3 cm mai zurfi, zai zama mai dadi sosai.
A zamanin yau, PCBs laminated a kan tagulla ko aluminum allon suna da yawa. Ga abubuwan da nake amfani da kaina, Ina ba da shawarar jan ƙarfe-sauki don haɗin gwiwa fiye da aluminum.
Sai dai idan kun sayar da na'urar zuwa tagulla (a hanya, idan ya dace), na gano cewa haɗin gwiwar epoxy mai zafi da aluminum ya fi jan ƙarfe. Na farko da aka yi da aluminum tare da maganin 1N NaOH na kimanin 30 seconds, sa'an nan kuma kurkura da ruwa mai tsabta kuma a bushe. kafin oxide ya sake girma, an haɗa shi cikin 'yan mintoci kaɗan. Damn kusa da haɗin da ba za a iya lalacewa ba.
Ta amfani da gidan yanar gizon mu da sabis ɗinmu, kun yarda a sarari ga sanya ayyukanmu, ayyuka da kukis ɗin talla. Ƙara koyo