Išči

    Raspberry Pi

    Raspberry Pi (RPi) je mikroračunalnik v velikosti kreditne kartice, ki so ga razvili v Združenem Kraljestvu, za Raspberry Pi Fundacijo, ki spodbuja poučevanja osnov računalništva v šolah in v državah v razvoju.[1][2][3] Izvirni model je postal precej bolj priljubljen, kot so pričakovali[4],  prodajali so ga tudi za namene, ki jih niso pričakovali. Obstajajo tudi kompleti, ki vključujejo dodatke, kot so miška, tipkovnica in kabli.[4]

    Glede na Raspberry Pi Fundacijo so prodali več kot 10 milijonov Raspberry Pi do aprila 2016, zaradi česar je najbolje prodajani Britanski računalnik.[5]

    Vsebina

    Pregled

    Obstaja več generacij računalnika Raspbery Pi. Prva generacija (Raspberry Pi 1 model B)  je izšla v februarju 2012. Sledil je enostavnejši in cenovno ugoden model model A. V letu 2014, je fundacija izdala računalnik z izboljšano zasnovo v Raspberry Pi 1 model B+.  Raspberry Pi računalniški modul je izšel v aprilu 2014. Raspberry Pi Zero z manjšo velikost in z manj vhodno/izhodnih (GPIO) priključkov, ki je bil izdan v novembru leta 2015 za $5. Pri Raspberry Pi 2 so dodali več RAM-a je in bil izdan februarja 2015. Raspberry Pi 3 Model B, ki so ga izdali v februarju leta 2016 ima vgrajen WiFi in Bluetooth. Najnovejši računalnik je Raspberry Pi Zero W z vgrajenim WiFi in Bluetooth. Izšel je 28. februarja 2017 in stane $10.

    Omrežja

    Model A, A+ in Pi Zero nimajo Ethernet priključka in so z omrežjem povezani z uporabo zunanjega priključka USB. Modela B and B+ imata Ethernet vmesnik na čipu LAN9514.[6] Raspberry Pi 3 in Raspberry Pi Zero W sta opremljena z 2,4 GHz WiFi 802.11n (150 Mbit/s) in Bluetooth 4.1 (24 Mbit/s) poleg 10/100 Ethernet vmesnika.

    Specifikacije

    Tip Model A Model B Compute Module* Zero
    Generacija 1 1 + 1 1 + 2 2 ver 1.2 3 1 3 3 lite PCB ver 1.2 PCB ver 1.3 W (Wireless)
    Datum izdaje Februar 2013[7] November 2014[8] April–Junij 2012 Julij 2014[9] Februar 2015[10] Oktober 2016[11] Februar 2016[12] April 2014[13] Januar 2017[14] November 2015[15] Mak 2016 28 Februar 2017
    Cena US$25[7] US$20[8] US$35[16] US$25[17] US$35 US$35 US$35 US$30 (v paketih po 100)[13] $30 $25 US$5[15] US$5 US$10
    Arhitektura ARMv6Z (32-bit) ARMv7-A (32-bit) ARMv8-A (64/32-bit) ARMv6Z (32-bit) ARMv8-A (64/32-bit) ARMv6Z (32-bit)
    SoC Broadcom BCM2835[18] Broadcom BCM2836 Broadcom BCM2837 Broadcom BCM2835[13] Broadcom BCM2837 Broadcom BCM2835
    CPU 700 MHz single-core ARM1176JZF-S[18] 900 MHz 32-bit quad-core ARM Cortex-A7 900 MHz 64-bit quad-core ARM Cortex-A53 1.2 GHz 64-bit quad-core ARM Cortex-A53 700 MHz single-core ARM1176JZF-S 1.2 GHz 64-bit quad-core ARM Cortex-A53 1 GHz single-core ARM1176JZF-S[15]
    GPU Broadcom VideoCore IV @ 250 MHz (BCM2837: 3D part of GPU @ 300 MHz, video part of GPU @ 400 MHz)[19][20]
    OpenGL ES 2.0 (BCM2835, BCM2836: 24 GFLOPS / BCM2837: 28.8 GFLOPS)
    MPEG-2 and VC-1 (with license),[21] 1080p30 H.264/MPEG-4 AVC high-profile decoder and encoder[18] (BCM2837: 1080p60)
    Pomnilnik (SDRAM) 256 MB (deljeno s GPU) 512 MB (deljeno s GPU) od 4. maja 2016. Starejši računalniki imajo 256 MB (deljeno s GPU)[22] 1 GB (deljeno s GPU) 512 MB (deljeno s GPU) 1 GB (deljeno s GPU) 512 MB (deljeno s GPU)
    USB 2.0 priključki[23] 1 2)[24] 4[6][9] 1 1 1 Micro-USB
    Video vhod 15-pin MIPI camera interface (CSI) connector, za Raspberry Pi camera ali Raspberry Pi NoIR camera[25] 2× MIPI CSI[13][26][27] Brez MIPI CSI (rev 1.3)[28] MIPI CSI
    Video izhodi HDMI (rev 1.3) composite video (RCA jack), MIPI display interface (DSI) for raw LCD panels HDMI (rev 1.3), composite video (3.5 mm TRRS jack), MIPI display interface (DSI) for raw LCD panels HDMI (rev 1.3), composite video (RCA jack), MIPI display interface (DSI) for raw LCD panels HDMI (rev 1.3), composite video (3.5 mm TRRS jack), MIPI display interface (DSI) for raw LCD panels HDMI, 2× MIPI display interface (DSI) for raw LCD panels,[13][27][29][30] composite video[26][31] Mini-HDMI, 1080p60,[15] composite video via marked points on PCB for optional header pins[32]
    Audio vhodi As of revision 2 boards via I²S[33]
    Audio izhodi Analog via 3.5 mm phone jack; digital via HDMI and, as of revision 2 boards, I²S Analog, HDMI, I²S Mini-HDMI, stereo audio through PWM on GPIO
    Vgrajeni pomnilnik[23] SD, MMC, SDIO card slot (3.3 V with card power only) MicroSDHC slot[9] SD, MMC, SDIO card slot MicroSDHC slot MicroSDHC slot, USB Boot Mode[34] 4 GB eMMC flash memory chip[13] MicroSDHC
    Vgrajeni omrežni priključek[23] None[35] 10/100 Mbit/s Ethernet (8P8C) USB adapter on the USB hub[24] 10/100 Mbit/s Ethernet,
    802.11n wireless,
    Bluetooth 4.1
    None 802.11n wireless,
    Bluetooth 4.1
    Perferije 8× GPIO[36] plus the following, which can also be used as GPIO: UART, I²C bus, SPI bus with two chip selects, I²S audio[37] +3.3 V, +5 V, ground[19][38]
    17× GPIO plus the same specific functions, and HAT ID bus 8× GPIO plus the following, which can also be used as GPIO: UART, I²C bus, SPI bus with two chip selects, I²S audio +3.3 V, +5 V, ground.

    An additional 4× GPIO are available on the P5 pad if the user is willing to make solder connections

    17× GPIO plus the same specific functions, and HAT ID bus 46× GPIO, some of which can be used for specific functions including I²C, SPI, UART, PCM, PWM[39] 40× GPIO ("unpopulated header")[15]
    Poraba energije 300 mA (1.5 W)[40] 200 mA (1 W)[41] 700 mA (3.5 W) 600 mA (3.0 W)[9] 800 mA[42] (4.0 W)[43] 200 mA (1 W) 700mA (3.5 W) ~160 mA[15] (0.8 W)
    Vir energije 5 V via MicroUSB or GPIO header
    Velikost 8.560 mm × 565 mm (337,0 in × 22,2 in), not including protruding connectors 65 mm × 565 mm × 10 mm (2,56 in × 22,24 in × 0,39 in), same as HAT board 8.560 mm × 565 mm (337,0 in × 22,2 in), not including protruding connectors 8.560 mm × 565 mm × 17 mm (337,01 in × 22,24 in × 0,67 in) [44] 676 mm × 30 mm (26,6 in × 1,2 in) 676 mm × 31 mm (26,6 in × 1,2 in) 65 mm × 30 mm × 5 mm (2,56 in × 1,18 in × 0,20 in)
    Teža 31 g (1,1 oz) 23 g (0,81 oz) 45 g (1,6 oz) 7 g (0,25 oz)[45] 9 g (0,32 oz)[46]
    Priključki Micro-USB cable[35] or a serial cable with optional GPIO power connector[47]
    Generacija 1 1 + 1 1 + 2 2 ver 1.2 3 1 3 3 lite PCB ver 1.2 PCB ver 1.3 W (Wireless)
    Tip Model A Model B Compute Module* Zero

    General purpose input-output (GPIO) priključek

    Raspberry Pi 1 A+ B+, Raspberry Pi 2 B, Raspberry Pi 3 B in Raspberry Pi Zero (in Zero W) imajo 40 GPIO priključkov.[48][49] Modela A in B imata samo 26 priključkov.[50][51][52]

    GPIO# 2. funkcija Pin# Pin# 2. funkcija GPIO#
    +3.3 V 1 2 +5 V
    2 SDA1 (I²C) 3 4 +5 V
    3 SCL1 (I²C) 5 6 GND
    4 GCLK 7 8 TXD0 (UART) 14
    GND 9 10 RXD0 (UART) 15
    17 GEN0 11 12 GEN1 18
    27 GEN2 13 14 GND
    22 GEN3 15 16 GEN4 23
    +3.3 V 17 18 GEN5 24
    10 MOSI (SPI) 19 20 GND
    9 MISO (SPI) 21 22 GEN6 25
    11 SCLK (SPI) 23 24 CE0_N (SPI) 8
    GND 25 26 CE1_N (SPI) 7
    (Raspberry Pi 1 A in B se tukaj končata)
    EEPROM ID_SD 27 28 ID_SC EEPROM
    5 N/A 29 30 GND
    6 N/A 31 32 12
    13 N/A 33 34 GND
    19 N/A 35 36 N/A 16
    26 N/A 37 38 Digital IN 20
    GND 39 40 Digital OUT 21

    Model B rev. 2 ima 8 dodatnih priključkov, ki ponujajo dostop do dodatnih 4. GPIO povezav.[53]

    Funkcija 2. funkcija Pin# Pin# 2. funkcija Funkcija
    N/A +5 V 1 2 +3.3 V N/A
    GPIO28 GPIO_GEN7 3 4 GPIO_GEN8 GPIO29
    GPIO30 GPIO_GEN9 5 6 GPIO_GEN10 GPIO31
    N/A GND 7 8 GND N/A

    Programska oprema

    Operacijski sistemi

    Operacijski sistemi za Raspberry Pi se namestijo preko MicroSD kartice Reža za njo se nahaja na spodnjem delu računalnika.

    Na Raspberry Pi se uporablja predvsem Raspbian, različica sistema Debian osnovi Linux operacijskega sistema. Drugi operacijski sistemi, ki so na voljo prek uradne spletne strani so Ubuntu MATE, Snappy Ubuntu Core, Windows 10 IoT Core, RISC OS in specializiranih distribucij Kodi media centra.[54]

    Na računalniku Raspberry Pi lahko zaženete tudi mnoge druge operacijske sisteme.

    Drugi operacijski sistemi (ne temeljijo na Linux)

    Drugi operacijski sistemi (temeljijo na Linux)

    Zunanje povezave (v angleščini)

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