Iphrojekthi ye-Raspberry Pi yethule ibhodi elisha le-Raspberry Pi Pico W, eliqhubeka nokuthuthukiswa kwebhodi elincane le-Pico, elifakwe isilawuli esincane se-RP2040. Uhlelo olusha luhlukaniswa ngokuhlanganiswa kosekelo lwe-Wi-Fi (2.4GHz 802.11n), olusetshenziswa ngesisekelo se-Infineon CYW43439 chip. I-chip ye-CYW43439 iphinde isekele i-Bluetooth Classic ne-Bluetooth Low-Energy, kodwa azikafakwa ebhodini. Ibhodi elisha libiza u-$6, okungamadola amabili abizayo kunenketho yokuqala. Phakathi kwezindawo zohlelo lokusebenza, ngaphezu kokwabelana namakhompyutha we-Raspberry Pi, ukuthuthukisa amasistimu ashumekiwe nezinhlelo zokulawula zamadivayisi ahlukahlukene, inketho ye-Wi-Fi ibekwe njengenkundla yokudala amadivayisi we-inthanethi Yezinto asebenzisana kunethiwekhi.
I-chip ye-RP2040 ihlanganisa i-dual-core ARM Cortex-M0+ (133MHz) processor eno-264 KB wememori yokufinyelela engahleliwe yangaphakathi (SRAM), isilawuli se-DMA, inzwa yezinga lokushisa, isibali sikhathi nesilawuli se-USB 1.1. Ibhodi liqukethe u-2 MB wememori ye-Flash, kodwa i-chip isekela ukunwetshwa kufika ku-16 MB. Ku-I/O kunezimbobo ze-GPIO (izikhonkwane ezingu-30, ezi-4 zazo zinikezelwe ekufakweni kwe-analog), i-UART, i-I2C, i-SPI, i-USB (iklayenti kanye nomsingathi ngokusekelwa ukubhutha kusuka kumadrayivu ngefomethi ye-UF2) kanye nezikhonkwane eziyi-8 ezikhethekile ze-PIO ( Imishini yesifunda ye-I/O ehlelekayo) yokuxhuma ama-peripherals akho. Amandla anganikezwa ukusuka ku-1.8 kuya ku-5.5 volts, okuvumela imithombo yamandla ehlukahlukene, okuhlanganisa amabhethri avamile amabili noma amathathu e-AA noma amabhethri ajwayelekile e-lithium-ion.
Ukwakha izinhlelo zokusebenza, i-C, C++ noma i-MicroPython ingasetshenziswa. Ichweba le-MicroPython le-Raspberry Pi Pico lilungiswe ngokuhlanganyela nombhali wephrojekthi futhi lisekela wonke amakhono e-chip, okuhlanganisa ne-interface yayo yokuxhuma izandiso ze-PIO. Imvelo edidiyelwe ye-Thonny yokuhlela iguqulelwe ukuze ithuthukiswe i-chip ye-RP2040 kusetshenziswa i-MicroPython. Amandla e-chip anele ukusebenzisa izinhlelo zokusebenza zokuxazulula izinkinga zokufunda komshini, ukuze kuthuthukiswe imbobo yohlaka lwe-TensorFlow Lite elungiselelwe. Ukuze uthole ukufinyelela kwenethiwekhi, kuhlongozwa ukuthi kusetshenziswe isitaki senethiwekhi ye-lwIP, esifakwe enguqulweni entsha ye-Pico SDK ukuze kuthuthukiswe izinhlelo zokusebenza ngolimi C, kanye ne-firmware entsha ene-MicroPython.
Source: opennet.ru