Helu kumu hoʻohālike | Pi3B+ | Pi 4B | Pi 400 |
Mea hana | 64-bit 1.2GHz quad-core | 64-bit 1.5GHz quad-core | |
Hoʻomanaʻo holo | 1GB | 2GB, 4GB, 8GB | 4GB |
ʻO WiFi ʻole | 802.1n uea 2.4GHz / 5GHz ʻelua-pānaʻi WiFi | ||
Bluetooth uwea ole | Bluetooth4.2 BLE | Bluetooth 5.0 BLE | |
awa upena Ethernet | 300Mbps | Gigabit Ethernet | |
awa USB | 4 USB 2.0 awa | 2 USB 3.0 awa 2 USB 2.0 awa | 2 USB 3.0 awa 1 mau awa USB 2.0 |
awa GPIO | 40 GPIO pine | ||
Leo a me ka wikiō | 1 HDMI nui piha Port, hōʻike MIPI DSI Hōʻike i ke awa, MIPI CSI Ka pahupaʻikiʻi, hoʻopuka stereo a me ke awa wikiō hui | 2 micro HDMI awa no ka wikiō a me ke kani, a hiki i 4Kp60. MIPI DSI hōʻike awa, MIPI CSI pahu pahupaʻiwikiō, stereo leo a me ka composite wikiō awa | |
Kākoʻo multimedia | H.264,MPEG-4 Hoʻololi: 1080p30. H.264 code: 1080 p30. OpenGL ES: 1.1, 2.0kiʻi. | H.265:4Kp60 decoding H.264:1080p60 wehe ʻana, 1080p30 hoʻopili OpenGL ES: 3.0 kiʻi | |
Kākoʻo Kāleka SD | Kāleka kāleka MicroSD | ||
Ka mana lako modc | Micro USB | USB ʻano C | |
USB ʻano C | Me ka hana POE (pono ʻia ka module hou) | ʻAʻole hiki ke hana POE | |
Mana hookomo | 5V 2.5A | 5V 3A | |
Kākoʻo hoʻoholo | 1080 hoʻonā | A hiki i ka 4K hoʻonā e kākoʻo i nā hōʻike ʻelua | |
Kaiapuni hana | 0-50C |
ʻO ka Raspberry Pi 4 Model B (Raspberry Pi 4 Model B) ka hā o ka hanauna o ka ʻohana Raspberry PI, kahi microcomputer hana kiʻekiʻe, haʻahaʻa haʻahaʻa. Hele mai me ka 1.5GHz 64-bit quad-core ARM Cortex-A72 CPU (Broadcom BCM2711 chip) e hoʻonui nui i ka mana hana a me ka hana multitasking. Kākoʻo ka Raspberry PI 4B a hiki i ka 8GB o LPDDR4 RAM, he port USB 3.0 no ka hoʻoili ʻikepili wikiwiki a, no ka manawa mua, hoʻolauna i kahi mana USB Type-C no ka hoʻouka wikiwiki a me ka mana.
Hōʻike pū ke kumu hoʻohālike i ʻelua mau kikowaena Micro HDMI e hiki ke hoʻopuka i ka wikiō hoʻonā 4K i ka manawa like i ʻelua mau mākaʻikaʻi, e kūpono ia no nā keʻena hana kūpono a i ʻole nā kikowaena multimedia. Hoʻohui ʻia ka hoʻohui ʻana i ka uea ʻole me 2.4/5GHz ʻelua-band Wi-Fi a me Bluetooth 5.0/BLE, e hōʻoia ana i ka ʻenehana maʻalahi a me ka hoʻopili ʻana i nā hāmeʻa. Eia kekahi, paʻa ka Raspberry PI 4B i ka pine GPIO, e ʻae i nā mea hoʻohana e hoʻopili i nā ʻano mea ʻike like ʻole a me nā mea hana no ka hoʻomohala lōʻihi ʻana, e kūpono ia no ke aʻo ʻana i ka papahana, nā papahana iot, nā robotics a me nā ʻano hana hana DIY.