Raspberry tsev neeg loj hlob
Raspberry Pi Foundation (www.raspberrypi.org) tau tso tawm ib qho tshiab version ntawm Model B: Model B+. Thaum xub thawj siab ib muag, cov kev hloov pauv ua rau B + tsis zoo li kev hloov pauv. Tib SoC (System ntawm Chip, BCM2835), tib tus nqi lossis hom RAM, tseem tsis muaj flash. Thiab tseem B + zoo heev daws tau ntau yam teeb meem niaj hnub uas tsim txom cov neeg siv ntawm lub khoos phis tawj me me no.
Qhov tseem ceeb tshaj plaws yog cov chaw nres nkoj USB ntxiv. Lawv cov naj npawb tau nce los ntawm 2 mus rau 4. Ntxiv mus, lub zog tshiab module yuav tsum nce lawv cov zis tam sim no txawm tias mus txog 1.2A [1]. Qhov no yuav tso cai rau koj ncaj qha muab lub zog rau ntau "zog-intensive", xws li cov tsav sab nraud. Lwm qhov kev hloov pauv tseem ceeb yog qhov hlau microSD qhov hloov pauv ntawm cov yas tag nrho SD. Tej zaum ib qho me me, tab sis nyob rau hauv B + daim npav yuav luag tsis protrude dhau lub rooj tsavxwm. Qhov no yuav txwv tus naj npawb ntawm cov xwm txheej cuam tshuam nrog lub qhov tawg, kev sib tsoo ntawm daim npav, lossis kev puas tsuaj rau lub qhov thaum poob.
GPIO connector tau loj hlob: los ntawm 26 mus rau 40 tus pins. 9 pins yog ntxiv universal inputs/outputs. Interestingly, ob tus pins ntxiv yog lub tsheb npav i2c tseg rau EEPROM nco. Lub cim xeeb yog khaws cia chaw nres nkoj teeb tsa lossis Linux tsav tsheb. Zoo, rau Flash nws yuav siv sij hawm me ntsis (tej zaum txog 2017 nrog version 2.0?).
Ntxiv GPIO chaw nres nkoj yuav twv yuav raug muab los ua ke. Ntawm qhov tod tes, qee qhov khoom siv tsim los rau 2 × 13 tus pin txuas yuav tsis haum rau 2 × 20 txuas ntxiv lawm.
Lub phaj tshiab kuj tseem muaj 4 qhov sib dhos, yooj yim dua spaced dua li ob ntawm version B. Qhov no yuav txhim kho qhov kev ruaj ntseg ntawm RPi-based designs.
Cov kev hloov pauv ntxiv suav nrog kev sib koom ua ke ntawm analog audio jack rau hauv 4-pin composite connector tshiab. Txuas lub 3,5 hli audio jack rau nws yuav tso cai rau koj mloog suab paj nruag los ntawm lub mloog pob ntseg lossis cov neeg hais lus sab nraud.
Qhov chaw khaws cia rau hauv txoj kev no ua rau nws tuaj yeem hloov kho lub rooj tsavxwm kom tsis txhob muaj cov ntsaws ntsaws rau ntawm nws ob sab. Raws li ua ntej, USB thiab Ethernet yog pawg ntawm tib ntug. Cov khoom siv hluav taws xob, HDMI, cov khoom sib xyaw ua suab thiab cov yeeb yaj kiab tso tawm thiab lub hwj chim ntsaws tau hloov mus rau qhov thib ob - yav dhau los "sib cais" ntawm lwm 3 sab. Qhov no tsis yog tsuas yog ua kom zoo nkauj xwb, tab sis kuj siv tau - RPi yuav tsis zoo li tus neeg raug tsim txom ntawm lub vev xaib ntawm cables. Lub downside yog tias koj yuav tau txais vaj tse tshiab.
Cov khoom siv hluav taws xob tshiab tau hais tseg saum toj no yuav txo qis kev siv hluav taws xob li ntawm 150 mA. Ib qho hluav taws xob ntxiv hluav taws xob rau lub suab module yuav tsum txhim kho lub suab kom zoo (txo cov suab nrov).
Hauv kev xaus: cov kev hloov pauv tsis yog kev hloov pauv, tab sis lawv ua rau Raspberry Foundation lub tswv yim zoo dua. Kev sim thiab cov lus piav qhia ntxaws ntxiv ntawm B + qauv yuav muaj sai sai no. Thiab nyob rau lub Yim Hli qhov teeb meem peb tuaj yeem pom thawj zaug ntawm cov ntawv nyeem uas yuav tso cai rau koj mus rau lub ntiaj teb "crimson" zoo dua.
Raws li:
(thawj duab)
