Lub phiaj xwm Raspberry Pi tau tshaj tawm tias muaj lub cim tshiab ntawm Raspberry Pi Zero W pawg thawj coj saib, uas sib txuas cov qhov ntev me me nrog kev txhawb nqa rau Bluetooth thiab Wi-Fi. Tus tshiab Raspberry Pi Zero 2 W qauv yog tsim nyob rau hauv tib yam me me daim ntawv zoo (65 x 30 x 5 mm), i.e. txog ib nrab ntawm qhov loj ntawm Raspberry Pi li niaj zaus. Kev muag khoom tau pib tam sim no tsuas yog hauv UK, European Union, Asmeskas, Canada thiab Hong Kong; kev xa mus rau lwm lub tebchaws yuav qhib raws li lub wireless module tau ntawv pov thawj. Tus nqi ntawm Raspberry Pi Zero 2 W yog $ 15 (rau kev sib piv, tus nqi ntawm Raspberry Pi Zero W board yog $ 10, thiab Raspberry Pi Zero yog $ 5; ntau lawm cov laug cam pheej yig yuav txuas ntxiv).
Qhov sib txawv tseem ceeb ntawm tus qauv tshiab Raspberry Pi Zero yog kev hloov pauv mus rau kev siv Broadcom BCM2710A1 SoC, ze rau qhov uas siv hauv Raspberry Pi 3 boards (hauv tiam dhau los ntawm Zero boards, Broadcom BCM2835 SoC tau muab, zoo li hauv thawj Raspberry Pi). Tsis zoo li Raspberry Pi 3, kom txo tau lub zog noj, processor zaus raug txo los ntawm 1.4GHz mus rau 1GHz. Kev txiav txim los ntawm ntau txoj xov sysbench xeem, SoC hloov tshiab ua rau nws muaj peev xwm ua kom cov kev ua tau zoo ntawm pawg thawj coj los ntawm 5 zaug (SoC tshiab siv quad-core 64-ntsis Arm Cortex-A53 CPU hloov ntawm ib leeg-core 32- ntsis ARM11 ARM1176JZF-S).
Raws li nyob rau hauv tsab xov xwm dhau los, Raspberry Pi Zero 2 W muaj 512MB ntawm RAM, Mini-HDMI chaw nres nkoj, ob qhov chaw nres nkoj Micro-USB (USB 2.0 nrog OTG thiab qhov chaw nres nkoj fais fab), microSD qhov, 40-pin GPIO connector (tsis yog soldered), Composite video thiab lub koob yees duab outputs (CSI-2). Lub rooj tsavxwm tau nruab nrog lub nti wireless uas txhawb nqa Wi-Fi 802.11 b/g/n (2.4GHz), Bluetooth 4.2 thiab Bluetooth Tsawg Zog (BLE). Txhawm rau dhau FCC daim ntawv pov thawj thiab tiv thaiv kev cuam tshuam rau sab nraud, lub nti wireless hauv lub rooj tsavxwm tshiab yog them nrog cov hlau casing.
Lub GPU kev koom ua ke rau hauv SoC txhawb nqa OpenGL ES 1.1 thiab 2.0, thiab muab cov cuab yeej rau kev ua kom nrawm video decoding hauv H.264 thiab MPEG-4 hom ntawv nrog 1080p30 zoo, nrog rau kev nkag siab hauv H.264 hom, uas nthuav dav ntau yam kev siv. lub rooj tsavxwm nrog ntau yam khoom siv multimedia thiab tshuab rau lub tsev ntse. Hmoov tsis zoo, qhov loj me ntawm RAM yog txwv rau 512 MB thiab tsis tuaj yeem nce ntxiv vim muaj kev txwv lub cev ntawm pawg thawj coj loj. Txhawm rau muab 1GB ntawm RAM yuav xav tau kev siv ntau txheej txheej tsim, uas cov neeg tsim khoom tseem tsis tau npaj los siv.
Qhov teeb meem tseem ceeb thaum tsim Raspberry Pi Zero 2 W board tau daws qhov teeb meem ntawm kev tso LPDDR2 SDRAM nco. Nyob rau hauv thawj tiam ntawm lub rooj tsavxwm, lub cim xeeb nyob rau hauv ib tug ntxiv txheej saum toj no lub SoC nti, siv los ntawm PoP (package-on-package) technology, tab sis cov txheej txheem no tsis tuaj yeem siv rau hauv Broadcom chips tshiab vim qhov nce hauv qhov loj ntawm SoC. Txhawm rau daws qhov teeb meem no, ua ke nrog Broadcom, ib qho tshwj xeeb version ntawm lub nti tau tsim, uas lub cim xeeb tau muab tso rau hauv SoC.
Lwm qhov teeb meem yog qhov nce ntawm cov cua kub dissipation vim yog siv lub processor muaj zog dua. Qhov teeb meem tau daws los ntawm kev ntxiv cov txheej tooj liab tuab rau lub rooj tsavxwm kom tshem tawm thiab dissipate cua sov ntawm lub processor. Vim li no, qhov hnyav ntawm lub rooj tsavxwm tau nce ntxiv, tab sis cov txheej txheem tau pom zoo thiab muaj txaus kom tsis txhob muaj cua sov thaum ua haujlwm tsis txwv LINPACK linear algebra stress test ntawm qhov kub thiab txias ntawm 20 degrees.
Ntawm cov khoom siv sib tw, qhov ze tshaj plaws rau Raspberry Pi Zero 2 W yog Suav board Orange Pi Zero Plus2, uas ntsuas 46x48mm thiab los rau $ 35 nrog 512MB ntawm RAM thiab Allwinner H3 nti. Lub Orange Pi Zero Plus2 board yog nruab nrog 8 GB EMMC Flash, muaj tag nrho HDMI chaw nres nkoj, TF Card qhov, USB OTG, nrog rau cov neeg sib txuas rau lub microphone, ib qho infrared receiver (IR) thiab ob qhov chaw nres nkoj USB ntxiv. Lub rooj tsavxwm tau nruab nrog quad-core Allwinner H5 (Cortex-A53) processor nrog Mali Mali450 GPU lossis Allwinner H3 (Cortex-A7) nrog Mali400MP2 GPU. Hloov ntawm 40-pin GPIO, luv luv 26-pin connector yog nkag, sib xws nrog Raspberry Pi B +. Lub Rooj Tswjhwm Saib tsis muaj zog Orange Pi Zero 2 kuj muaj, tab sis nws los nrog 1 GB ntawm RAM thiab Ethernet chaw nres nkoj ntxiv rau Wi-nkaus.
Tau qhov twg los: opennet.ru