Raspberry Pi Project e senotse boto e ncha ea Raspberry Pi Pico W, e ntse e tsoela pele nts'etsopele ea boto e nyane ea Pico, e nang le "microcontroller" ea RP2040. Khatiso e ncha e khetholloa ka ho kopanngoa ha tšehetso ea Wi-Fi (2.4GHz 802.11n), e sebelisoang motheong oa Infineon CYW43439 chip. Chip ea CYW43439 e boetse e ts'ehetsa Bluetooth Classic le Bluetooth Low-Energy, empa ha e e-so kenyellelitsoe botong. Litsenyehelo tsa boto e ncha ke $ 6, e leng lidolara tse peli ho feta khetho ea pele. Har'a libaka tsa ts'ebeliso, ntle le ho arolelana le likhomphutha tsa Raspberry Pi, ho nts'etsapele lits'ebetso tse kentsoeng le litsamaiso tsa taolo bakeng sa lisebelisoa tse fapaneng, khetho ea Wi-Fi e behiloe joalo ka sethala sa ho theha lisebelisoa tsa Marang-rang a Lintho (Inthanete ea Lintho) tse sebelisanang holim'a marang-rang. marangrang.
Chip ea RP2040 e kenyelletsa processor ea li-dual-core ARM Cortex-M0+ (133MHz) e nang le 264 KB ea on-board RAM (SRAM), molaoli oa DMA, sensor ea mocheso, sebali sa nako le sesebelisoa sa USB 1.1. Boto e na le 2 MB ea memori ea Flash, empa chip e ts'ehetsa katoloso ho fihla ho 16 MB. Bakeng sa I / O, ho fanoa ka likou tsa GPIO (lipini tse 30, tseo tse 4 tsa tsona li abetsoeng ho kenya analog), UART, I2C, SPI, USB (moreki le moamoheli ea nang le ts'ehetso ea ho qala ho tsoa ho li-drive ka sebopeho sa UF2) le lipini tse 8 tse khethehileng tsa PIO ( Mechini e hlophisitsoeng ea I / O state) ho hokela lisebelisoa tsa hau. Matla a ka fanoa ho tloha ho 1.8 ho ea ho 5.5 volts, e leng se u lumellang hore u sebelise mehloli e fapaneng ea matla, ho kenyelletsa le libeteri tse peli kapa tse tharo tse tloaelehileng tsa AA kapa libeteri tse tloaelehileng tsa lithium-ion.
Lisebelisoa li ka etsoa ho sebelisoa C, C++, kapa MicroPython. Boema-kepe ba MicroPython bakeng sa Raspberry Pi Pico bo hlophisitsoe ka kopanelo le mongoli oa morero mme bo ts'ehetsa likarolo tsohle tsa chip, ho kenyelletsa le sebopeho sa eona sa ho hokahanya likeketso tsa PIO. Bakeng sa nts'etsopele ea chip ea RP2040 e sebelisang MicroPython, tikoloho ea lenaneo e kopaneng ea Thonny e fetotsoe. Bokhoni ba chip bo lekane ho tsamaisa lits'ebetso tsa ho rarolla mathata a ho ithuta ka mochini, bakeng sa nts'etsopele eo boema-kepe ba moralo oa TensorFlow Lite bo lokisitsoeng. Bakeng sa phihlello ea marang-rang, ho khothaletsoa ho sebelisa lwIP network stack, e kenyellelitsoeng phetolelong e ncha ea Pico SDK bakeng sa ho nts'etsapele lits'ebetso ka puo ea C, hammoho le ho firmware e ncha e nang le MicroPython.
Source: opennet.ru