Raspberry Pi 4B: He microcomputer liʻiliʻi a ikaika

Ka inoa: Raspberry Pi4B
SOC: Broadcom BCM2711
CPU: 64-bit 1.5GHz quad-core (28nm kaʻina)
CPU: Broadcom VideoCore V@500MHz
Bluetooth: Bluetooth 5.0
Pili USB: USB2.0*2USB3.0*2
HDMI: kākoʻo ka micro HDMI*2 i ka 4K60
Pākuʻi lako mana: ʻAno C (5V 3A)
Multimedia: H.265 (4Kp60 decode);
H.264 (1080p60 decode,1080p30 encode);
OpenGL ES, 3.0 graphicsencode);
OpenGL ES, 3.0 kiʻi
Pūnaehana Wi-Fi: 802.11AC uea 2.4GHz/5GHz Wifi pālua ʻelua
Pūnaewele uea: ʻO Gigabit Ethernet ʻoiaʻiʻo (hiki ke kiʻi ʻia ke awa pūnaewele
Ethernet poe: Ethernet ma o ka HAT hou

ʻO nā hiʻohiʻona nui o Raspberry Pi 4B:
ʻOi aku ka wikiwiki o ka hana ʻana:
1. ʻO ka mea hou loa Broadcom 2711 quad-core Cortex A72 (ARM V8-A) 64-bit SoC processor clock ma 1.5GHz e hoʻomaikaʻi i ka hoʻohana mana; a me nā thermals ma ka Pi 4+B, ʻo ia hoʻi, hiki i ka CPU ma ka BCM2837 SoC ke holo i kēia manawa ma 1.5 GHz He 20% ka hoʻomaikaʻi ʻana ma mua o ka hiʻohiʻona Pi 3 mua, i holo ma 1.2GHz.
2. Ua hoʻonui ʻia ka hana wikiō ma Pi 4 B me ke kākoʻo ʻelua kiaʻi ma nā hoʻonā a hiki i 4K ma o nā awa ʻelua; ʻO ka hoʻololi wikiō wikiō a hiki i ka 4Kp60, kākoʻo no ka wehe ʻana i ka H 265 (4kp 60); H.264 a me MPEG-4 decoding (1080p60 ).

ʻOi aku ka wikiwiki:
1. Ke hoʻohālikelike ʻia i ka hiʻohiʻona Pi 3 mua, kahi hoʻololi nui i ka Pi 4 B ʻo ka hoʻokomo ʻana i kahi mea hou, wikiwiki; puʻupuʻu uʻi pālua ʻelua e kākoʻo ana i ka LAN uea 802.11 b/g/n/ac.
2. Kākoʻo ʻo Dual-band 2.4GHz a me 5GHz wireless LAN i nā pilina pūnaewele wikiwiki me ka liʻiliʻi o ke keakea, a kākoʻo ka ʻenehana antenna PCB hou i ka hoʻokipa maikaʻi.
3. ʻO ka 5.0 hou loa e hiki ai iā ʻoe ke hoʻohana i kahi kīwī uila / trackpad me ka nui o ka laulā ma mua o ka wā ma mua, me ka ʻole o nā dongles hou; mālama pono i nā mea.

Hoʻonui ʻia ka pilina Ethernet:
1. ʻOi aku ka wikiwiki o ka uea pūnaewele ʻo Pi 4 B, me ka ʻenehana USB 3.0; mahalo i ka USB / LAN chip i hoʻonui ʻia; pono ʻoe e ʻike i nā wikiwiki a hiki i 10 mau manawa ʻoi aku ka wikiwiki ma mua o nā hiʻohiʻona Pi mua.
2. Ua like ke poo GPIO, 40 pine; kūpono loa i hope me nā motherboards mua, e like me nā hiʻohiʻona ʻekolu o Pi. Eia naʻe; pono e hoʻomaopopo ʻia e hiki ke hoʻopili ʻia nā plug PoE hou me nā ʻāpana ma ka ʻaoʻao lalo o kekahi mau pāpale; e like me nā pāpale anuenue.