Raspberry Pi Project yavumbulutsa bolodi yatsopano ya Raspberry Pi Pico W, kupitiliza kupanga kabokosi kakang'ono ka Pico, kokhala ndi RP2040 microcontroller. Kusindikiza kwatsopanoku kumasiyanitsidwa ndi kuphatikiza kwa chithandizo cha Wi-Fi (2.4GHz 802.11n), chokhazikitsidwa pamaziko a Infineon CYW43439 chip. Chip cha CYW43439 chimathandizanso Bluetooth Classic ndi Bluetooth Low-Energy, koma sanaphatikizidwe mu bolodi pano. Mtengo wa bolodi latsopano ndi $ 6, yomwe ndi madola awiri kuposa njira yoyamba. Pamalo ogwiritsira ntchito, kuwonjezera pa kugawana ndi makompyuta a Raspberry Pi, kupanga makina ophatikizidwa ndi machitidwe olamulira a zipangizo zosiyanasiyana, njira ya Wi-Fi ili ngati nsanja yopangira intaneti ya Zinthu (Intaneti ya Zinthu) zomwe zimagwirizanitsa pa intaneti. network.
Chip cha RP2040 chimaphatikizapo purosesa yapawiri-core ARM Cortex-M0+ (133MHz) yokhala ndi 264 KB ya RAM (SRAM), chowongolera cha DMA, sensor ya kutentha, timer, ndi chowongolera cha USB 1.1. Bolodi lili ndi 2 MB ya Flash memory, koma chip chimathandizira kukulitsa mpaka 16 MB. Kwa I / O, madoko a GPIO amaperekedwa (mapini 30, omwe 4 amaperekedwa kuti alowetse analogi), UART, I2C, SPI, USB (kasitomala ndi wolandira ndi chithandizo chowombera kuchokera kumayendedwe a UF2) ndi mapini 8 apadera PIO ( Makina osinthika a I / O state) kuti mulumikizane ndi zotumphukira zanu. Mphamvu zimatha kuperekedwa kuchokera ku 1.8 mpaka 5.5 volts, zomwe zimakulolani kugwiritsa ntchito magetsi osiyanasiyana, kuphatikizapo mabatire awiri kapena atatu AA ochiritsira kapena mabatire a lithiamu-ion.
Mapulogalamu amatha kupangidwa pogwiritsa ntchito C, C++, kapena MicroPython. Doko la MicroPython la Raspberry Pi Pico linakonzedwa limodzi ndi wolemba polojekitiyo ndipo limathandizira mbali zonse za chip, kuphatikiza mawonekedwe ake olumikizira zowonjezera za PIO. Pachitukuko cha chip RP2040 chogwiritsa ntchito MicroPython, malo ophatikizika a Thonny asinthidwa. Kuthekera kwa chip ndikokwanira kuyendetsa mapulogalamu othana ndi mavuto ophunzirira makina, kuti pakhale chitukuko chomwe doko la TensorFlow Lite chimango lakonzedwa. Kuti mupeze maukonde, akufunsidwa kugwiritsa ntchito stack network ya lwIP, yomwe ikuphatikizidwa mu mtundu watsopano wa Pico SDK popanga mapulogalamu muchilankhulo cha C, komanso mu firmware yatsopano ndi MicroPython.
Source: opennet.ru