Zuva re nezuro ndanga ndichitaura nezve kit ine chinhu chikuru icho Raspberry pi, iyo inotarisana nemusika wevana vanofarira kuvaka yavo komputa.
Zvakanaka, kanopfuura vhiki rapfuura, vazhinji vashandisi veRaspberry Pi vakatenga iyo PoE HAT plugin vakatanga kuita dzinoverengeka zvirevo mumaforamu akasiyana siyana uye kunyangwe mukati meiyo Raspberry blog.
Nekuti vashandisi vazhinji yakashuma nyaya neiyo ichangoburwa Raspberry Pi Simba-pamusoro -Ethernet HAT, iyo Raspberry Pi Foundation iri kupa kudzosera vatengi avo vakatenga bhodhi rakashata.
Mumazuva mushure mekuburitswa mukupera kwaNyamavhuvhu, vashandisi vanga vachitaura kushaikwa musimba raununurwa by Raspberry Pi PoE HAT.
HAT inowirirana neyakajairika Raspberry Pi 3 Model B + SBC iyo ine yakazara yega yega switching magetsi magetsi ne37-57V DC, Kirasi 2 yekuisa uye 5V / 2.5A DC kuburitsa.
La HAT inosangana ne40-pini yekubatanidza uye nyowani PoE-yakatarwa 4-pini musoro wakaunzwa neB +, iri padyo ne USB ports.
El PoE HAT inopihwa ine 25 x 25mm fan brushless kutonhodza iyo Broadcom SoC.
Asi zvinosuruvarisa, izvi zvinowedzera hazvigone kugamuchirwa nemusika nekuda kwedambudziko rambotaurwa.
Pakati pevhiki dzinopindirana, mainjiniya eRaspberry Raspberry Pi Foundation vanga vachimhanya-mhanya kuti vaone mamiriro edambudziko. Kufamba kunonakidza kunogona kuteverwa paRaspberry Pi maforamu.
Nezve dambudziko
Mune chinyorwa muRejista , dambudziko rakatsanangurwa naEben Upton, co-muvambi wenheyo uye CEO weRaspberry Pi Kutengesa.
Zvinoenderana naUpton:
"Uku ndiko kudyidzana pakati peyepasi-frequency switching regulator paHAT uye imwe yemhando mbiri dzeUSB dzazvino-dzinodzora switch dzatinoshandisa pabhodhi guru."
upton akatsanangura izvozvo nekuti mutongi anoshanda mushe mune yakaderera frequency, pese paunoshandura, unofambisa huwandu hwesimba kune matatu USB akachengetera makapu kuburikidza nazvino inogumira switch.
Iyi hombe pari zvino irikunyengedza switch kuti ifunge kuti chiitiko chechokwadi chepamusoro chiri kuitika.
"Takarasikirwa mukuyedzwa kwechigadzirwa nekuti (mbeveve rombo rakanaka) kuyerwa kwedu kwakanyanya kwakaitwa pamabhodhi neimwe mhando yemaswitch, uye vazhinji vevanoongorora minda yedu vakangoshandisa bhodhi kupa mbeva nemakiyi, zvinoshanda zvakanaka. HAT / Pi mativi takaedza, ”akadaro Upton.
Iwo Akakosha Mapoinzi eRaspberry Pi PoE HAT Matambudziko, uye nhanho dziri kutorwa dzakatsanangurwa mutsamba Upton yakatumirwa kuRejista, uye yakatumirwawo paRaspberry Pi maforamu.
Ndivo vanotevera:
- “Chikamu chakakosha chevaviri veHAT / Pi chinogumira pakununura isingasviki mazana maviri emamiriyoni ezasi kwerwizi kuUSB. Izvi zvinowanzo kwana mbeva nemakadhibhodi, asi kwete zvekutyaira zvakaoma, semuenzaniso «.
- "Tichagadzirisa izvi mune imwe yemberi paPoE HAT."
- "Zvichakadaro, tichawedzera katsamba panotengeswa HAT, tichinyora muganho uyu."
- “Tichapa nzira dzinoverengeka dzemanyorerwo evashandisi vane ruzivo. Ivo vanogona kunge vari:
- "Kubvisa mateki kubva mubhodhi guru (nzira yakapusa uye yakachena kana uchikwanisa kushandisa simbi, asi inogumira kubatanidza kwe USB."
- "Isa chitsama chakapetana impedance munzira iriko kubva kuHAT (izvi zvichanetsa kuita)."
- Iwo akakosha mapoinzi eRaspberry Pi PoE HAT matambudziko, uye nhanho dzakatorwa dzakanyorwa mutsamba iyo Upton yakatumira kuRejista, uye zvakare yakatumirwa paRaspberry Pi maforamu.
Iyo yekutanga blog post, ichizivisa Raspberry Pi PoE HAT inogona kuva tsvaga pano . Peji yechigadzirwa ine zvinongedzo kune vatengesi iri pano.