Rasberi Pi Pico 2 W Microcontroller Board

Ƙayyadaddun bayanai:

• Sunan samfur: Rasberi Pi Pico 2W
• Wutar lantarki: 5V DC
• Mafi ƙarancin ƙididdiga na yanzu: 1A

Umarnin Amfani da samfur

Bayanin Tsaro:
Rasberi Pi Pico 2 W yakamata ya bi ƙa'idodi da ƙa'idodi masu dacewa a cikin ƙasar da aka yi niyya. Wutar lantarki da aka bayar yakamata ya zama 5V DC tare da mafi ƙarancin ƙimar halin yanzu na 1A.

Takaddun Shaida:
Don duk takaddun shaida da lambobi, da fatan za a ziyarci  www.raspberrypi.com/compliance.

Bayanin Haɗin kai don OEM:
Mai sana'anta samfurin OEM/ Mai watsa shiri yakamata ya tabbatar da ci gaba da bin ka'idodin takaddun shaida na FCC da ISED Kanada da zarar an haɗa samfurin a cikin samfurin Mai watsa shiri. Koma zuwa FCC KDB 996369 D04 don ƙarin bayani.

Yarda da Ka'ida:
Don samfuran da ake samu akan kasuwar Amurka/Kanada, tashoshi 1 zuwa 11 kawai suna samuwa don 2.4GHz WLAN. Na'urar da eriya (s) ba dole ba ne a hade ko sarrafa su tare da kowane eriya ko mai watsawa sai dai daidai da hanyoyin watsawa da yawa na FCC.

Sassan Dokokin FCC:
Tsarin yana ƙarƙashin sassa na dokokin FCC masu zuwa: 15.207, 15.209, 15.247, 15.401, da 15.407.

Rasberi Pi Pico 2W Takardar bayanai
Kwamitin microcontroller na tushen RP2350 tare da mara waya.

Colophon

• © 2024 Raspberry Pi Ltd
• Wannan takaddun yana da lasisi a ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙirƙira-NoDerivatives 4.0 International (CC BY-ND).
• kwanan wata: 2024-11-26
• gina-version: d912d5f-tsabta

Sanarwa na karya doka

• BAYANIN FASAHA DA DOMIN AMINCI DON SAMUN SAUKI PI (HADA DA DATASHEETS) KAMAR YADDA AKE GYARA DAGA LOKACI ZUWA LOKACI ("KASUWA") ANA BAYAR DA RASPBERRY PI LTD ("RPL") "KAMAR YADDA" DA DUKAN BAYANAI, KO BANGASKIYA, BAYANAI. TO, GARANTIN SAUKI DA KYAUTA GA MUSAMMAN MANUFAR ANA ƙin yarda. ZUWA MATSALAR MATSALAR DOKA A BABU ABINDA YA FARUWA RPL BA ZAI IYA HANNU GA DUK WANI SHARRI GASKIYA, GASKIYA, MAFARKI, NA MUSAMMAN, MISALI, KO SAMUN LALATA (HADA DA, AMMA BAI IYA IYAKA BA; E, DATA , Ko riba; ko katsewa) duk da haka hadar da alhaki, ko azabtarwa, ko azabtarwa, ko azabtarwa ko azabtarwa ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko azabtarwa (har da azabtarwa, ko kuma azabtarwa ko azabtarwa ko azabtarwa IRIN WANNAN LALACEWAR.
• RPL tana da haƙƙin yin kowane haɓakawa, haɓakawa, gyare-gyare ko kowane gyare-gyare ga RESOURCES ko kowane samfuran da aka bayyana a cikinsu a kowane lokaci kuma ba tare da ƙarin sanarwa ba.
• An yi nufin RESOURCES don ƙwararrun masu amfani da matakan da suka dace na ilimin ƙira. Masu amfani ke da alhakin zaɓin su da amfani da RESOURCES da kowane aikace-aikacen samfuran da aka bayyana a cikinsu. Mai amfani ya yarda ya ramuwa da riƙe RPL mara lahani ga duk haƙƙoƙi, farashi, diyya ko wasu asara da suka taso daga amfani da su na RESOURCES.
• RPL yana ba masu amfani izini don amfani da RESOURCES kawai tare da samfuran Rasberi Pi. An haramta duk sauran amfani da RESOURCES. Babu lasisi da aka bayar ga kowane RPL ko wani haƙƙin mallakar fasaha na ɓangare na uku.
• AYYUKAN HADARI MAI KYAU. Ba a tsara samfuran Raspberry Pi, kerarre ko an yi nufin amfani da su a cikin mahalli masu haɗari waɗanda ke buƙatar gazawar aiki lafiya, kamar a cikin ayyukan makaman nukiliya, kewayawa jirgin sama ko tsarin sadarwa, sarrafa zirga-zirgar jiragen sama, tsarin makamai ko aikace-aikacen aminci mai mahimmanci (ciki har da tsarin tallafin rayuwa da sauran na'urorin likitanci), wanda gazawar samfuran na iya haifar da kai tsaye ga mutuwa, rauni na mutum ko mummunan lahani na jiki ko na muhalli (“Hanyoyin lalacewa). RPL musamman yana ƙin duk wani bayani ko garanti na dacewa don Babban Ayyukan Haɗari kuma yana karɓar wani alhaki don amfani ko haɗa samfuran Rasberi Pi a cikin Babban Ayyukan Haɗari.
• Ana ba da samfuran Rasberi Pi bisa ƙa'idodin ƙa'idodin RPL. Samar da RPL na RESOURCES baya faɗaɗa ko in ba haka ba ya canza Madaidaitan Sharuɗɗan RPL gami da amma ba'a iyakance ga ƙin yarda da garantin da aka bayyana a cikinsu ba.

Babi na 1. Game da Pico 2 W
Rasberi Pi Pico 2 W kwamiti ne na microcontroller dangane da guntu microcontroller na Rasberi Pi RP2350.

Rasberi Pi Pico 2 W an ƙera shi don zama ɗan ƙaramin farashi amma dandamali mai sassauƙa na haɓakawa don RP2350, tare da keɓancewar mara waya ta 2.4GHz da maɓalli masu zuwa:

• RP2350 microcontroller tare da 4 MB na ƙwaƙwalwar filashi
• Hanyoyin mu'amala mara waya ta 2.4GHz akan jirgi guda ɗaya (802.11n, Bluetooth 5.2)
  • Taimako don ayyukan Bluetooth LE Central da Peripheral
  • Taimako don Classic Bluetooth
• Micro USB B tashar jiragen ruwa don iko da bayanai (kuma don sake tsara filasha)
• 40-pin 21mm × 51mm 'DIP' style 1mm lokacin farin ciki PCB tare da 0.1 ″ ta-rami fil kuma tare da gefen castellations
  • Yana fallasa 26 Multi-aiki 3.3V manufa gama gari I/O (GPIO)
  • 23 GPIO na dijital-kawai, tare da uku kuma suna da ikon ADC
  • Za a iya sanyawa a saman a matsayin module
• 3-pin Arm serial waya debug (SWD) tashar jiragen ruwa
• Sauƙaƙan ginin gine-ginen samar da wutar lantarki mai sauƙin sassauƙa
  • Zaɓuɓɓuka iri-iri don sauƙin kunna naúrar daga micro USB, kayan waje ko batura
• High quality, low cost, high samuwa
• Cikakken SDK, software misaliamples da takardun shaida

Don cikakkun bayanai na RP2350 microcontroller da fatan za a duba littafin Datasheet RP2350. Babban fasali sun haɗa da:

• Dual Cortex-M33 ko RISC-V Hazard3 cores an rufe su har zuwa 150MHz
  • PLLs guda biyu akan guntu suna ba da izinin cibiya mai canzawa da mitoci na gefe
• 520 kB Multi-bankunan babban aikin SRAM
• Wurin Quad-SPI na waje tare da eXecute In Place (XIP) da 16kB akan-chip cache
• Kayan aikin bas ɗin cikakken-crossbar
• A kan jirgin USB1.1 (na'ura ko mai watsa shiri)
• 30 Multi-action general purpose I/O (ana iya amfani da hudu don ADC)
  • 1.8-3.3VI/O juzu'itage
• 12-bit 500ksps analogue zuwa mai canza dijital (ADC)
• Daban-daban na dijital peripherals
  • 2 × UART, 2 × I2C, 2 × SPI, 24 × PWM tashoshi, 1 × HSTX na gefe
  • 1 × mai ƙidayar lokaci tare da ƙararrawa 4, 1 × AON Mai ƙidayar lokaci
• 3 × tubalan I/O (PIO) masu shirye-shirye, injinan jihohi 12 gabaɗaya
  • Mai sassauƙa, I/O mai sauri mai sauƙin amfani
  • Za a iya yin koyi da musaya kamar katin SD da VGA

NOTE

• Rasberi Pi Pico 2 WI/O voltage yana daidaitawa a 3.3V
• Rasberi Pi Pico 2 W yana ba da ƙaramin kewayawa na waje amma mai sassauƙa don tallafawa guntu RP2350: ƙwaƙwalwar filasha (Winbond W25Q16JV), crystal (Abracon ABM8-272-T3), samar da wutar lantarki da decoupling, da mai haɗin USB. Yawancin RP2350 microcontroller fil ana kawo wa mai amfani I/O fil a gefen hagu da dama na hukumar. Ana amfani da RP2350 I/O guda huɗu don ayyuka na ciki: tuƙi LED, sarrafa wutar lantarki ta yanayin sauyawa (SMPS), da sanin tsarin vol.tage.
• Pico 2 W yana da keɓaɓɓiyar kewayon mara waya ta 2.4GHz ta amfani da Infineon CYW43439. Eriyar eriya ce ta kan jirgi mai lasisi daga Abracon (tsohon ProAnt). Ana haɗa haɗin mara waya ta hanyar SPI zuwa RP2350.
• An ƙera Pico 2 W don amfani da ko dai siyar 0.1-inch fil-headers (yana da faɗin farar 0.1-inch mafi faɗi fiye da daidaitaccen kunshin 40-pin DIP), ko kuma a sanya shi azaman 'module' mai hawa-hawa, kamar yadda masu amfani da I/O kuma aka jefar.
• Akwai SMT pads a ƙarƙashin mai haɗin USB da maɓallin BOOTSEL, waɗanda ke ba da damar isa ga waɗannan sigina idan aka yi amfani da su azaman ƙirar SMT mai sake-sayarwa.

• Rasberi Pi Pico 2 W yana amfani da SMPS akan-board buck-boost SMPS wanda ke iya samar da 3.3V da ake buƙata (don sarrafa RP2350 da kewayen waje) daga kewayon shigarwa vol.tages (~ 1.8 zuwa 5.5V). Wannan yana ba da damar sassauƙa mai mahimmanci wajen ƙarfafa naúrar daga tushe daban-daban, kamar kwayar lithium-ion cell guda ɗaya, ko ƙwayoyin AA guda uku a cikin jerin. Hakanan ana iya haɗa cajar baturi cikin sauƙi tare da Pico 2W powerchain.
• Za a iya sake tsara filasha na Pico 2 W ta amfani da USB (jawo da sauke a file a kan Pico 2 W, wanda ke bayyana azaman na'urar ajiya mai tarin yawa), ko daidaitaccen tashar gyara waya (SWD) na iya sake saita tsarin kuma ɗauka da kunna lambar ba tare da danna maballin ba. Hakanan za'a iya amfani da tashar jiragen ruwa na SWD don mu'amala da lalata lambar da ke gudana akan RP2350.

Farawa tare da Pico 2W

• Farawa da littafin Rasberi Pi Pico yana tafiya ta shirye-shiryen lodawa akan allo, kuma yana nuna yadda ake shigar da C/C++ SDK da gina tsohonampda shirye-shiryen C. Dubi littafin Rasberi Pi Pico-jerin Python SDK don farawa da MicroPython, wanda shine hanya mafi sauri don samun lambar yana gudana akan Pico 2 W.

Tsarin Rasberi Pi Pico 2W files
Tsarin tushe files, gami da tsarin tsarawa da tsarin PCB, ana yin su a bayyane banda eriya. Eriyar Niche™ fasahar eriya ce ta Abracon/Proant mai haƙƙin mallaka. Da fatan za a tuntuɓi niche@abracon.com don bayani kan lasisi.

• Tsarin tsari CAD da files, gami da shimfidar PCB, ana iya samun su anan. Lura cewa an ƙera Pico 2 W a cikin Editan Cadence Allegro PCB, kuma buɗewa a cikin wasu fakitin PCB CAD zai buƙaci rubutun shigo da kayan aiki.
• MATAKI 3D Misalin MATAKI na 3D na Rasberi Pi Pico 2 W, don hangen nesa na 3D da kuma dacewa da ƙira waɗanda suka haɗa da Pico 2 W azaman module, ana iya samun su anan.
• Fritzing Za'a iya samun ɓangaren fritzing don amfani a cikin misali shimfidar allo a nan.
• An ba da izinin amfani, kwafi, gyara, da/ko rarraba wannan ƙira don kowace manufa tare da ko ba tare da kuɗi ba.
• ANA BAYAR DA SIFFOFIN "KAMAR YADDA YAKE" KUMA Mawallafin ya yi watsi da DUKAN GARANTI GAME DA WANNAN TSINA MAI GUDA DA DUKKAN GARANTIN SAUKI DA KWANTAWA. BABU ABUBUWAN DA MARUBUCI BA ZAI IYA HANNU GA DUK WANI LALATA NA MUSAMMAN, GASKIYA, GASKIYA, KO SABODA HAKA KO WATA LALATA DUK ABINDA YA SAMU DAGA RASHIN AMFANI, BAYANI KO RIBA, KO A WANI SAMUN HANKALI, Fita KO A Haɗuwa da AMFANI KO AIKIN WANNAN SIFFOFIN.C

Babi na 2. Ƙayyadaddun injina
Pico 2 W shine PCB mai gefe guda 51mm × 21mm × 1mm tare da micro USB tashar jiragen ruwa wanda ke rataye saman saman, da kuma fitattun fitilun katako / ta ramuka a kusa da dogayen gefuna biyu. Eriyar mara waya ta kan jirgin tana kan gefen ƙasa. Don guje wa cire eriya, babu wani abu da ya isa ya kutsa cikin wannan sarari. An ƙirƙira Pico 2 W don zama mai amfani azaman ƙirar dutsen sama da kuma gabatar da tsarin fakitin layi na dual inline (DIP), tare da manyan fitattun masu amfani 40 akan grid 2.54mm (0.1 ″) tare da ramukan 1mm, masu jituwa tare da veroboard da allon burodi. Pico 2 W kuma yana da ramukan hawa 2.1mm (± 0.05mm) guda huɗu don samar da gyaran injina (duba Hoto 3).

Pico 2W mai girma
An tsara Pico 2 W pinout don fitar da kai tsaye gwargwadon RP2350 GPIO da aikin kewayawa na ciki kamar yadda zai yiwu, yayin da kuma samar da adadin da ya dace na filaye na ƙasa don rage tsangwama na electro-magnetic (EMI) da siginar sigina. RP2350 an gina shi akan tsarin siliki na 40nm na zamani, don haka ƙimar ƙimar I/O ta dijital tana da sauri sosai.

NOTE

• Ana nuna lambar fil ta zahiri a hoto 4. Don rarraba fil duba Hoto 2.

Ana amfani da 'yan RP2350 GPIO fil don ayyukan allo na ciki:

• Farashin GPIO29 Yanayin OP/IP mara waya ta SPI CLK/ADC (ADC3) don auna VSYS/3
• Farashin GPIO25 OP mara waya ta SPI CS - lokacin da babba kuma yana ba da damar GPIO29 ADC fil don karanta VSYS
• Farashin GPIO24 OP/IP mara waya ta SPI data/IRQ
• Farashin GPIO23 OP mara igiyar waya akan sigina
• WL_GPIO2 IP VBUS hankali - babba idan VBUS yana nan, kuma ƙananan
• WL_GPIO1 OP yana sarrafa fil ɗin adana wutar lantarki na kan jirgi SMPS (Sashe 3.4)
• WL_GPIO0 OP an haɗa zuwa LED mai amfani

Baya ga GPIO da fitilun ƙasa, akwai wasu filoli guda bakwai akan babban mashigin 40-pin:

• Lambar PIN40 V-BUS
• Lambar PIN39 VSYS
• Lambar PIN37 3V3_EN
• Lambar PIN36 3V3
• Lambar PIN35 ADC_VREF
• Lambar PIN33 AGND
• Lambar PIN30 GUDU

VBUS shine shigar da micro-USB voltage, an haɗa shi da micro-USB tashar fil fil 1. Wannan suna 5V (ko 0V idan USB ba a haɗa ko ba a kunna).

• VSYS shine babban tsarin shigar da tsarin voltage, wanda zai iya bambanta a cikin kewayon da aka ba da izini daga 1.8V zuwa 5.5V, kuma SMPS na kan jirgi ke amfani dashi don samar da 3.3V don RP2350 da GPIO.
• 3V3_EN yana haɗi zuwa kan jirgin SMPS yana kunna fil, kuma an ja shi sama (zuwa VSYS) ta hanyar resistor 100kΩ. Don musaki 3.3V (wanda kuma ke hana RP2350), gajarta wannan ƙananan fil.
• 3V3 shine babban 3.3V da ake samarwa zuwa RP2350 da I/O ɗin sa, wanda SMPS na kan jirgi ya samar. Ana iya amfani da wannan fil don kunna wutar lantarki ta waje (mafi girman fitarwa na yanzu zai dogara da nauyin RP2350 da VSYS vol.tage; ana bada shawarar kiyaye nauyin akan wannan fil a ƙarƙashin 300mA).
• ADC_VREF shine wutar lantarki ta ADC (da tunani) voltage, kuma ana samar dashi akan Pico 2 W ta hanyar tace wadatar 3.3V. Ana iya amfani da wannan fil tare da bayanin waje idan ana buƙatar mafi kyawun aikin ADC.
• AGND shine bayanin ƙasa don GPIO26-29. Akwai wani jirgin sama na analog na daban yana gudana ƙarƙashin waɗannan sigina kuma yana ƙarewa a wannan fil. Idan ba a yi amfani da ADC ba ko aikin ADC ba shi da mahimmanci, ana iya haɗa wannan fil zuwa ƙasan dijital.
• RUN shine RP2350 mai kunna fil, kuma yana da na'ura mai juyi na ciki (akan-chip) zuwa 3.3V na kusan ~ 50kΩ. Don sake saita RP2350, gajeriyar wannan fil ɗin ƙasa.
• A ƙarshe, akwai kuma maki shida na gwaji (TP1-TP6), waɗanda za a iya isa ga idan an buƙata, misaliample idan ana amfani dashi azaman module-mount. Wadannan su ne:
  • TP1 Ground (ƙasa mai haɗin gwiwa don bambancin siginar USB)
  • TP2 USB DM
  • TP3 USB DP
  • TP4 WL_GPIO1/SMPS PS fil (kada ku yi amfani)
  • TP5 WL_GPIO0/LED (ba a ba da shawarar a yi amfani da shi ba)
  • TP6 BOOTSEL
• Ana iya amfani da TP1, TP2 da TP3 don samun damar siginar USB maimakon amfani da tashar micro-USB. Ana iya amfani da TP6 don fitar da tsarin zuwa yanayin shirye-shiryen USB mai tarin yawa (ta hanyar rage shi ƙasa da ƙarfi). Lura cewa TP4 ba a yi nufin amfani da shi a waje ba, kuma TP5 ba a ba da shawarar da gaske don amfani da shi ba saboda kawai zai juya daga 0V zuwa LED gaba vol.tage (saboda haka za'a iya amfani dashi kawai azaman fitarwa tare da kulawa ta musamman).

Sawun-Dutsen sawun
Ana ba da shawarar sawun sawun mai zuwa (Hoto 5) don tsarin da za a sake siyar da raka'o'in Pico 2 W azaman kayayyaki.

• Sawun sawun yana nuna wuraren gwajin gwajin da girman kushin da kuma 4 kebul na haɗin harsashi na ƙasa (A,B,C,D). Kebul na haɗin kebul akan Pico 2 W wani yanki ne na rami, wanda ke ba shi ƙarfin injina. Fil ɗin soket ɗin USB ba sa fitowa gabaɗaya ta cikin allo, duk da haka solder yana yin waha a waɗannan pads yayin kera kuma yana iya dakatar da module ɗin zaune gabaɗaya. Don haka muna samar da pads akan sawun ƙirar ƙirar SMT don ba da damar wannan mai siyar don sake gudana ta hanyar sarrafawa lokacin da Pico 2 W ya sake dawowa.
• Don wuraren gwaji waɗanda ba a yi amfani da su ba, yana da karɓuwa a ɓata kowane jan ƙarfe a ƙarƙashin waɗannan (tare da izini mai dacewa) akan allon jigilar kaya.
• Ta hanyar gwaji tare da abokan ciniki, mun ƙaddara cewa stencil na manna dole ne ya fi girman sawun. Yin wuce gona da iri na pads yana tabbatar da kyakkyawan sakamako mai yuwuwa yayin siyarwa. Tambarin manna mai zuwa (Hoto na 6) yana nuna ma'auni na yankuna na manna a kan Pico 2 W. Muna ba da shawarar wuraren manna 163% mafi girma fiye da sawun sawun.

Wurin ajiyewa
Akwai yanke don eriya (14mm × 9mm). Idan an sanya wani abu kusa da eriya (a kowane girma) tasirin eriyar yana raguwa. Rasberi Pi Pico W yakamata a sanya shi a gefen allo kuma kada a sanya shi cikin ƙarfe don guje wa ƙirƙirar kejin Faraday. Ƙara ƙasa zuwa ɓangarorin eriya yana inganta aikin dan kadan.

Shawarar yanayin aiki
Sharuɗɗan aiki don Pico 2 W galibi aiki ne na yanayin aiki da aka kayyade ta abubuwan haɗin sa.

• Aiki Temp Max 70°C (gami da dumama kai)
• Zazzabi Min -20 ° C
• VBUS 5V ± 10%.
• VSYS Min 1.8V
• VSYS Max 5.5V
• Lura cewa VBUS da VSYS na yanzu zasu dogara ne akan yanayin amfani, wasu misaliampAna ba da les a sashe na gaba.
• Matsakaicin zafin yanayin aiki da aka ba da shawarar shine 70 ° C.

Babi na 3. Bayanan aikace-aikace

Shirya walƙiya

• Ana iya tsara filasha QSPI 2MB akan allo ta hanyar amfani da tashar gyara waya ta siriyal ko ta yanayin na'urar ma'ajiya ta USB na musamman.
• Hanya mafi sauƙi don sake tsara filasha ta Pico 2 W ita ce amfani da yanayin USB. Don yin wannan, kunna allon allo, sannan ka riƙe maɓallin BOOTSEL ƙasa yayin ƙarfin allon allo (misali ka riƙe BOOTSEL ƙasa yayin haɗa USB). The
• Pico 2 W zai bayyana azaman na'urar ma'ajiya ta USB. Ja na musamman '.uf2' file a kan faifai zai rubuta wannan file zuwa walƙiya kuma sake kunna Pico 2W.
• Ana adana lambar taya na USB a cikin ROM akan RP2350, don haka ba za a iya sake rubuta shi da gangan ba.
• Don fara amfani da tashar jiragen ruwa na SWD duba sashin Debugging tare da SWD a cikin Farawa da littafin Rasberi Pi Pico-jerin.

Babban manufa I/O

• Ana yin amfani da GPIO na Pico 2 W daga kan jirgin ƙasa mai nauyin 3.3V, kuma an daidaita shi a 3.3V.
• Pico 2 W yana fallasa 26 daga cikin 30 masu yuwuwar RP2350 GPIO fil ta hanyar tura su kai tsaye zuwa fil ɗin kai na Pico 2 W. GPIO0 zuwa GPIO22 na dijital-kawai, kuma GPIO 26-28 za'a iya amfani da su ko dai azaman GPIO na dijital ko azaman abubuwan shigar ADC (zaɓi software).

NOTE

• GPIO 26-29 suna da ikon ADC kuma suna da diode na baya na ciki zuwa dogo na VDDIO (3.3V), don haka shigarwar vol.tage dole ne ya wuce VDDIO da kusan 300mV. Idan RP2350 ba shi da iko, yin amfani da voltage zuwa waɗannan fitilun GPIO za su 'zuba' ta cikin diode zuwa cikin dogo na VDDIO. GPIO fils 0-25 (da madaidaicin fil) ba su da wannan ƙuntatawa don haka vol.tage za a iya amfani da su cikin aminci ga waɗannan fil yayin da RP2350 ba shi da iko har zuwa 3.3V.

Amfani da ADC
RP2350 ADC ba shi da bayanin guntu; tana amfani da nata wutar lantarki a matsayin abin tunani. A kan Pico 2 W ana samar da fil ɗin ADC_AVDD (sayarwar ADC) daga SMPS 3.3V ta amfani da matatar RC (201Ω cikin 2.2μF).

1. Wannan maganin ya dogara da daidaiton fitarwa na 3.3V SMPS
2. Ba za a tace wasu hayaniyar PSU ba
3. ADC yana zana halin yanzu (kimanin 150μA idan diode ma'anar zafin jiki ya ƙare, wanda zai iya bambanta tsakanin kwakwalwan kwamfuta); za a sami koma baya na kusan 150μA*200 = ~ 30mV. Akwai ƙaramin bambanci a zana na yanzu lokacin da ADC ke sampling (kimanin +20μA), don haka kashewa shima zai bambanta da sampling da zafin aiki.

Canza juriya tsakanin ADC_VREF da 3.3V fil na iya rage kashewa akan ƙarin hayaniya, wanda ke taimakawa idan yanayin amfani zai iya tallafawa matsakaicin sama da s da yawa.amples.

• Tuƙi fil ɗin yanayin SMPS (WL_GPIO1) yana ƙarfafa wutar lantarki zuwa yanayin PWM. Wannan na iya matuƙar rage ɓacin rai na SMPS a nauyi mai sauƙi, sabili da haka yana rage ripple akan wadatar ADC. Wannan yana rage ƙarfin ƙarfin Pico 2 W a nauyi mai sauƙi, don haka a ƙarshen yanayin jujjuyawar ADC PFM ana iya sake kunnawa ta hanyar tuƙi WL_GPIO1 ƙasa sau ɗaya. Duba Sashe 3.4.
• Ana iya rage kashewar ADC ta hanyar ɗaure tashoshi na biyu na ADC zuwa ƙasa, da yin amfani da wannan ma'aunin sifili a matsayin kusantar da aka samu.
• Don ingantaccen aikin ADC mai yawa, bayanin shunt na waje na 3.0V, kamar LM4040, ana iya haɗa shi daga fil ɗin ADC_VREF zuwa ƙasa. Yi la'akari da cewa idan yin wannan kewayon ADC yana iyakance ga siginar 0V - 3.0V (maimakon 0V - 3.3V), kuma ma'anar shunt zai zana ci gaba na yanzu ta hanyar 200Ω filter resistor (3.3V - 3.0V) / 200 = ~ 1.5mA.
• Lura cewa 1Ω resistor akan Pico 2 W (R9) an ƙera shi don taimakawa tare da nassoshi na shunt waɗanda in ba haka ba zasu zama mara ƙarfi lokacin da aka haɗa kai tsaye zuwa 2.2μF. Har ila yau yana tabbatar da cewa akwai tacewa ko da a yanayin da aka gajarta 3.3V da ADC_VREF tare (waɗanda masu amfani waɗanda ke jure wa hayaniya kuma suna so su rage abin da ke cikin asali na iya so su yi).
• R7 shine babban juzu'in fakitin metric 1608 (0603), don haka ana iya cire shi cikin sauƙi idan mai amfani yana son ware ADC_VREF kuma yayi nasu canje-canje zuwa ADC vol.tage, da exampLe powering shi daga gabaɗaya daban voltage (misali 2.5V). Lura cewa ADC akan RP2350 ya cancanci kawai a 3.0/3.3V, amma yakamata yayi aiki ƙasa zuwa kusan 2V.

Powerchain
An ƙera Pico 2 W tare da tsarin samar da wutar lantarki mai sauƙi amma mai sassauƙa kuma ana iya samun sauƙin sarrafa shi daga wasu tushe kamar batura ko kayayyaki na waje. Haɗa Pico 2 W tare da da'irar caji na waje shima yana da sauƙi. Hoto na 8 yana nuna wutar lantarki.

• VBUS shine shigarwar 5V daga tashar micro-USB, wanda aka ciyar ta hanyar Schottky diode don samar da VSYS. VBUS zuwa VSYS diode (D1) yana ƙara sassauƙa ta hanyar barin ikon ORing na kayayyaki daban-daban cikin VSYS.
• VSYS shine babban tsarin 'shigarwar voltage' kuma yana ciyar da RT6154 buck-boost SMPS, wanda ke haifar da ƙayyadaddun fitarwa na 3.3V don na'urar RP2350 da I/O (kuma ana iya amfani da ita don kunna wutar lantarki ta waje). VSYS an raba shi da 3 (ta R5, R6 a cikin tsarin Pico 2 W) kuma ana iya sa ido akan tashar ADC 3 lokacin watsawar waya ba ta gudana. Ana iya amfani da wannan don example a matsayin danyen baturi voltage duba.
• Buck-boost SMPS, kamar yadda sunansa ke nunawa, na iya canzawa daga kanla zuwa yanayin haɓakawa ba tare da ɓata lokaci ba, don haka yana iya kula da ƙimar fitarwa.tage na 3.3V daga kewayon shigarwa voltages, ~ 1.8V zuwa 5.5V, wanda ke ba da damar sassauƙa da yawa a cikin zaɓin tushen wutar lantarki.
• WL_GPIO2 yana lura da wanzuwar VBUS, yayin da R10 da R1 suka yi aiki don cire VBUS ƙasa don tabbatar da cewa 0V ne idan VBUS ba ya nan.
• WL_GPIO1 yana sarrafa fil ɗin RT6154 PS (ajiyar wutar lantarki). Lokacin da PS yayi ƙasa (tsohuwar akan Pico 2 W) mai sarrafa yana cikin yanayin yanayin mitar bugun jini (PFM), wanda, a cikin nauyin haske, yana adana babban ƙarfi ta hanyar kunna MOSFETs masu sauyawa lokaci-lokaci don kiyaye ƙarfin fitarwa. Saitin babban PS yana tilasta mai gudanarwa zuwa yanayin juzu'in bugun jini (PWM). Yanayin PWM yana tilasta SMPS don canzawa akai-akai, wanda ke rage yawan fitarwa da yawa a nauyi mai nauyi (wanda zai iya zama mai kyau ga wasu lokuta masu amfani) amma a kashe mafi munin inganci. Lura cewa ƙarƙashin nauyi mai nauyi SMPS zai kasance cikin yanayin PWM ba tare da la'akari da yanayin pin na PS ba.
• Ana jan fil ɗin SMPS EN zuwa VSYS ta hanyar resistor 100kΩ kuma an samar dashi akan Pico 2 W fil 37. Yanke wannan fil ɗin zuwa ƙasa zai kashe SMPS kuma ya sanya shi cikin ƙaramin ƙarfin wuta.

NOTE 
RP2350 yana da mai sarrafa layi na kan-chip (LDO) wanda ke ba da ikon ainihin dijital a 1.1V (na ƙima) daga wadatar 3.3V, wanda ba a nuna shi a cikin Hoto 8 ba.

Ƙarfin Rasberi Pi Pico 2W

• Hanya mafi sauƙi don kunna Pico 2 W ita ce toshe cikin micro-USB, wanda zai ba da ikon VSYS (sabili da haka tsarin) daga 5V USB VBUS vol.tage, ta hanyar D1 (don haka VSYS ya zama VBUS ya rage diode Schottky).
• Idan tashar USB ita ce kawai tushen wutar lantarki, VSYS da VBUS za a iya rage su cikin aminci tare don kawar da diode Schottky diode (wanda ke inganta inganci kuma yana rage ripple akan VSYS).
• Idan ba za a yi amfani da tashar USB ba, yana da lafiya don kunna Pico 2 W ta hanyar haɗa VSYS zuwa tushen wutar da kuka fi so (a cikin kewayon ~ 1.8V zuwa 5.5V).

MUHIMMANCI
Idan kana amfani da Pico 2 W a cikin yanayin masaukin USB (misali ta amfani da ɗayan TinyUSB mai masaukin baki examples) to dole ne ku kunna Pico 2 W ta hanyar samar da 5V zuwa fil ɗin VBUS.

Hanya mafi sauƙi don ƙara tushen wuta na biyu zuwa Pico 2 W lafiya shine ciyar da shi cikin VSYS ta wani diode Schottky (duba Hoto 9). Wannan zai 'OR' biyu voltage, kyale mafi girma na ko dai na waje voltage ko VBUS don kunna VSYS, tare da diodes suna hana ko dai samarwa daga baya-powering da sauran. Don misaliample guda Lithium-ion cell* (cell voltage ~ 3.0V zuwa 4.2V) zai yi aiki da kyau, kamar yadda sel guda uku na AA za su kasance (~ 3.0V zuwa ~ 4.8V) da duk wani ingantaccen kayan aiki a cikin kewayon ~ 2.3V zuwa 5.5V. Rashin wannan hanyar ita ce samar da wutar lantarki na biyu zai sha wahala diode diode kamar yadda VBUS ke yi, kuma wannan bazai zama abin sha'awa ba daga hangen nesa mai inganci ko kuma idan tushen ya riga ya kasance kusa da ƙananan kewayon shigarwa vol.tagSaukewa: RT6154.

Ingantacciyar hanyar yin amfani da wutar lantarki daga tushe na biyu tana amfani da MOSFET ta P-channel (P-FET) don maye gurbin Schottky diode kamar yadda aka nuna a cikin Hoto 10. A nan, ƙofar FET tana sarrafawa ta VBUS, kuma za ta cire haɗin tushen na biyu lokacin da VBUS yake. Ya kamata a zaɓi P-FET don samun ƙananan juriya, sabili da haka ya shawo kan inganci da voltage-sauke matsalolin tare da maganin diode-kawai.

• Lura cewa Vt (ƙofa voltage) na P-FET dole ne a zaɓi don zama da kyau ƙasa da ƙaramin ƙaramar shigarwar wajetage, don tabbatar da an kunna P-FET da sauri kuma tare da ƙananan juriya. Lokacin da aka cire shigarwar VBUS, P-FET ba zai fara kunnawa ba har sai VBUS ya faɗi ƙasa da P-FET's Vt, yayin da diode ɗin jikin P-FET na iya fara gudanarwa (ya danganta da ko Vt ya fi ƙasa da diode diode). Don abubuwan shigar da ke da ƙaramin ƙaramar shigarwa voltage, ko kuma idan ana sa ran ƙofar P-FET ta canza sannu a hankali (misali idan an ƙara kowane ƙarfin zuwa VBUS) ana ba da shawarar Schottky diode na biyu a fadin P-FET (a cikin hanya ɗaya da diode na jiki). Wannan zai rage voltage sauke a fadin P-FET ta diode.
• TsohonampP-MOSFET mai dacewa don yawancin yanayi shine Diodes DMG2305UX wanda ke da matsakaicin Vt na 0.9V da Ron na 100mΩ (a 2.5V Vgs).

HANKALI
Idan ana amfani da ƙwayoyin lithium-ion dole ne su sami, ko kuma a samar musu da, isassun kariya daga wuce gona da iri, caji, caji a waje da aka yarda da kewayon zafin jiki, da wuce gona da iri. Kwayoyin da ba su da kariya suna da haɗari kuma suna iya kama wuta ko fashe idan an yi yawa fiye da kima, fiye da caji ko caji/fitar da su a wajen zafin da aka yarda da su da/ko kewayon yanzu.

Amfani da cajar baturi
Hakanan za'a iya amfani da Pico 2 W tare da cajar baturi. Ko da yake wannan ɗan ƙaramin ƙarar yanayin amfani ne amma har yanzu yana da sauƙi. Hoto na 11 yana nuna tsohonampna yin amfani da nau'in caja na 'hanyar wuta' (inda caja ke sarrafa musanya tsakanin wuta daga baturi ko wutar lantarki daga tushen shigarwa da cajin baturi, kamar yadda ake buƙata).

A cikin exampmu ciyar da VBUS zuwa shigar da caja, kuma muna ciyar da VSYS tare da fitarwa ta hanyar tsarin P-FET da aka ambata a baya. Dangane da yanayin amfanin ku kuna iya ƙara ƙara diode Schottky a cikin P-FET kamar yadda aka bayyana a sashin da ya gabata.

USB

• RP2350 yana da haɗin haɗin USB1.1 PHY da mai sarrafawa wanda za'a iya amfani dashi a cikin na'ura da yanayin masauki. Pico 2 W yana ƙara biyun da ake buƙata na 27Ω na waje na waje kuma yana kawo wannan keɓancewa zuwa madaidaicin tashar micro-USB.
• Ana iya amfani da tashar USB don samun dama ga bootloader na USB (yanayin BOOTSEL) da aka adana a cikin RP2350 boot ROM. Hakanan ana iya amfani dashi ta lambar mai amfani, don samun damar na'urar USB ta waje ko mai masaukin baki.

Mara waya ta dubawa
Pico 2 W yana ƙunshe da keɓaɓɓiyar kewayon mara waya ta 2.4GHz ta amfani da Infineon CYW43439, wanda ke da fasali masu zuwa:

• WiFi 4 (802.11n), Single-band (2.4 GHz)
• Bayani na WPA3
• SoftAP (har zuwa abokan ciniki 4)
• Bluetooth 5.2
  • Taimako don ayyukan Bluetooth LE Central da Peripheral
  • Taimako don Classic Bluetooth

Eriyar eriya ce ta kan jirgi mai lasisi daga ABRACON (tsohon ProAnt). Ana haɗa haɗin mara waya ta hanyar SPI zuwa RP2350.

• Saboda gazawar fil, ana raba wasu daga cikin fitilun mahaɗan mara waya. Ana raba CLK tare da duban VSYS, don haka kawai lokacin da babu ma'amalar SPI da ke ci gaba za a iya karanta VSYS ta hanyar ADC. Infineon CYW43439 DIN/DOUT da IRQ duk suna raba fil ɗaya akan RP2350. Sai kawai lokacin da ma'amala ta SPI ba ta ci gaba ba ya dace don bincika IRQs. Ƙaddamarwa yawanci yana gudana a 33MHz.
• Don mafi kyawun aikin mara waya, eriya yakamata ya kasance cikin sarari kyauta. Misali, sanya karfe a karkashin ko kusa da eriya na iya rage ayyukansa duka ta fuskar riba da bandwidth. Ƙara ƙarfe mai tushe zuwa ɓangarorin eriya na iya haɓaka bandwidth na eriya.
• Akwai fil ɗin GPIO guda uku daga CYW43439 waɗanda ake amfani da su don sauran ayyukan allo kuma ana iya samun sauƙin shiga ta SDK:
  • WL_GPIO2
  • IP VBUS hankali - babba idan VBUS yana nan, kuma ƙananan
  • WL_GPIO1
  • OP yana sarrafa fil ɗin adana wutar lantarki na kan jirgi SMPS (Sashe 3.4)
  • WL_GPIO0
• OP an haɗa zuwa LED mai amfani

NOTE 
Ana iya samun cikakkun bayanai na Infineon CYW43439 akan Infineon website.

Gyara kurakurai
Pico 2 W yana kawo RP2350 serial debug debug (SWD) dubawa zuwa madaidaicin kuskuren fil uku. Don fara amfani da tashar gyara kuskure duba sashin gyara kuskure tare da SWD a cikin Farawa da littafin jerin Rasberi Pi Pico.

NOTE 
Guntuwar RP2350 tana da resistors na ciki akan SWDIO da SWCLK fil, duka suna 60kΩ.

Karin bayani A: Samuwar
Rasberi Pi yana ba da tabbacin samun samfurin Rasberi Pi Pico 2 W har zuwa aƙalla Janairu 2028.

Taimako
Don tallafi duba sashin Pico na Rasberi Pi website, da aika tambayoyi akan dandalin Rasberi Pi.

Karin bayani na B: Wuraren bangaren Pico 2W

Shafi C: Ma'anar Ma'anar Tsakanin Kasawa (MTBF)

Tebur 1. Ma'anar lokacin tsakanin gazawar Rasberi Pi Pico 2 W

Samfura	Ma'anar Ma'anar Tsakanin Ƙarƙashin Ƙarƙashin Ƙasa (Sa'o'i)	Ma'anar Lokaci Tsakanin Kasawar Ground Mobile (Sa'o'i)
Farashin 2W	182 000	11 000

Ƙasa, mai kyau 
Ya shafi wuraren da ba na hannu ba, yanayin zafi da zafi da ake sarrafa su cikin sauƙi don kiyayewa; ya haɗa da kayan aikin dakin gwaje-gwaje da kayan gwaji, kayan lantarki na likitanci, kasuwanci da rukunin kwamfuta na kimiyya.

Ƙasa, wayar hannu 
Yana ɗaukar matakan damuwa na aiki da kyau sama da amfanin masana'antu na gida ko haske na yau da kullun, ba tare da zafin jiki, zafi ko sarrafa jijjiga ba: ya shafi kayan aikin da aka sanya akan ababen hawa ko bin diddigi da kayan aikin da aka ɗauka da hannu; ya haɗa da na'urar sadarwa ta hannu da na hannu.

Tarihin Sakin Takardu

• 25 Nuwamba, 2024
• Sakin farko.

FAQs

Q: Menene yakamata ya zama samar da wutar lantarki don Rasberi Pi Pico 2W?
A: Ya kamata samar da wutar lantarki ya samar da 5V DC da mafi ƙarancin ƙimar halin yanzu na 1A.

Tambaya: A ina zan iya samun takaddun yarda da lambobi?
A: Don duk takaddun shaida da lambobi, da fatan za a ziyarci www.raspberrypi.com/compliance.

Takardu / Albarkatu

Rasberi Pi Pico 2 W Microcontroller Board [pdf] Jagorar mai amfani PICO2W, 2ABCB-PICO2W, 2ABCBPICO2W, Pico 2 W Microcontroller Board, Pico 2 W, Microcontroller Board, Board

Magana

• Manual mai amfani