Txiv Pos Pi ntev tau ua tus qauv kub rau cov nqi qis rau veneer, muab ntau yam kev pabcuam rau cov neeg hlau, cov cuab yeej cuab tam hauv tsev thiab cov kiosks. Tus ntau-xav tau tus txiv pos Pi 4 coj tus Pi mus rau lwm theem, nrog kev kawm txaus rau txoj kev sib koom tes ua ib lub PC duab thiab muaj peev xwm los tso zis 4K video lossis dual-display dual-display ntawm 60 Hz.
Rau tib qho pib ntawm $ 35 raws li tus qauv yav dhau los, koj tau txais ob mus rau plaub zaug sai dua, txhawb USB 3 thiab muaj tseeb Gigabit Ethernet. Tej zaum ntau qhov tseem ceeb, yuav muaj $ 45 tus txiv pos Pi 4 nrog 2GB nco thiab ib tus nqi ntawm $ 55, 4GB, plaub zaug ntawm yav dhau los Pi.
Tom qab Compatibility
Nws tseem ceeb heev uas yuav tsum nco ntsoov tias, thaum lub sij hawm xa tawm, qee qhov tseem ceeb ntawm cov Software Software tseem tsis tau ua hauj lwm ntawm Pi 4. Los khiav Pi 4, koj yuav tsum download tau ib lub npe tshiab ntawm lub Raspbian OS, Raspbian Buster. Thiab tsis txhua yam sau rau hauv Buster tsis tau. Thaum kuaj, peb pom ntau tus Python qiv los sis lwm qhov yuav tsum tau muaj cov ntawv xov xwm uas tsis tau tshaj qhov OS tshiab.
Lub Ntsiab Tseem Ceeb
Cov lus hauv qab no qhia tau hais tias tus xeeb ceem specs sib piv ntawm tus txiv pos Pi 4 B, thawj tus qauv Pi xwb, thiab tus txiv pos Pi 3B, tus ceev tshaj plaws ntawm Pi 3.
| Spec | Pospberry Pi 4 B | Raspberry Pi 3 B + |
| CPU | 1.5-GHz, Quad-Core Broadcom BCM2711B0 (Cortex A-72) | 1.4-GHz, Quad Core Broadcom BCM2837B0 (Cortex A-53) |
| RAM | 1 - 4GB DDR4 | 1GB DDR2 |
| GPU | 400 MHz VideoCore IV | 500 MHz VideoCore VI |
| Yeeb yaj duab tawm | dual micro HDMI chaw nres nkoj | tib qho chaw nres nkoj ntawm HDMI |
| Max daws teeb meem | 4K 60 Hz + 1080p los yog 2x 4K 30 Hz | 2560 x 1600 |
| USB Ports | 2x USB 3.0 / 2x USB 2.0 | 4x USB 2.0 |
| Wired Networking | Gigabit Ethernet | 330 Mbps Ethernet |
| Wireless | 802.11ac (2.4 / 5 GHz), Bluetooth 5.0 | 802.11ac (2.4 / 5 GHz), Bluetooth 4.1 |
| Them Port | USB hom-C | micro USB |
| Lub Hwj Hwm Fais Fab | 3A, 5V | 2.5A, 5V |
| Qhov loj | 3.5 x 2.3 x 0.76 nti (88 x 58 x 19.5mm) | 3.2 x 2.2 x 0.76 nti (82 x 56 x 19.5mm) |
| Nyhav | 0.1 phaus (46 grams) | 0.11 phaus (50 grams) |
Qhov tseem ceeb tshiab tshaj plaws yog cov txheej txheem khiav ceev thiab GPUs, ntau dua thiab sai RAM, muaj zog USB 3 cov chaw nres nkoj, dual micro HDMI cov chaw nres nkoj tsis txuas ib qhov txuas HDMI nkaus xwb, thiab kev them nyiaj yug rau 4K tso tawm. Lub npav caij npav uas txhawb USB 3 tseem cia rau ntawm qhov chaw nres nkoj Ethernet los txhawb cov kev sib txuas ntawm qhov tseeb (125 MBps), nrog qhov theemestical kawg ntawm tus qauv cim dhau los ua 41 MBps. Lub microSD daim npav yog ob zaug kom ceev, ua raws li 50 MBps, thiab 25 MBps rau 3B +.
Vim tias lub SoC tshiab yuav tsum tau muaj hwj huam ntau dua, tus Tub Pos 4 Pi yuav tau them ntawm USB Hom-C siv Micro USB. Nws kuj yuav tsum muaj lub hwj huam adapter uas yuav muab tau yam tsawg 3 amps ntawm lub hwj chim thiab 5 volts, tab sis yog tias koj tsis muaj ntau qhov txuas nrog USB chaw nres nkoj, koj tuaj yeem siv 2.5 amps. Ib qho ntawm qhov yuav tsum tau ua fais fab, tus USB hom-C connector yog rov qab, ua rau nws yooj yim rau cov me nyuam (thiab cov laus) mus txuas rau.