LCD WIKI E32R32P, E32N32P 3.2inch IPS ESP32-32E 
Nuni Manual mai amfani da Module

Ana nuna kundin adireshi a cikin adadi mai zuwa:

Hoto 1.1 Kunshin Bayanin Samfura

Matakan haɓaka software na nuni sune kamar haka:

A. Gina ESP32 yanayin haɓaka software;
B. idan ya cancanta, shigo da dakunan karatu na software na ɓangare na uku a matsayin tushen ci gaba;
C. Bude aikin software don gyarawa, zaku iya ƙirƙirar sabon aikin software;
D. iko akan tsarin nuni, tarawa da zazzage shirin debugging, sannan duba tasirin aikin software;
E. Tasirin software bai kai ga abin da ake tsammani ba, ci gaba da canza lambar shirin, sannan a tattara da zazzagewa, har sai tasirin ya kai yadda ake tsammani;

Don cikakkun bayanai game da matakan da suka gabata, duba takaddun a cikin jagorar 1-Demo.

3.1. Sama daview na module hardware albarkatun aka nuna
Ana nuna albarkatun kayan masarufi a cikin adadi biyu masu zuwa:

Hoto 3.1 Module kayan aikin hardware 1

Hoto 3.2 Module kayan aikin hardware 2

An bayyana albarkatun kayan aikin kamar haka:

Girman nunin LCD shine inci 3.2, direban IC shine ST7789, kuma ƙuduri shine 240 × 320. An haɗa ESP32 ta amfani da hanyar sadarwa ta SPI mai waya 4.

A. Gabatarwa zuwa ST7789 mai sarrafa

Mai sarrafa ST7789 yana goyan bayan matsakaicin ƙuduri na 240*320 da 172800-byte GRAM. Hakanan yana goyan bayan 8-bit, 9-bit, 16-bit, da 18-bit daidaitattun bayanan bayanan tashar jiragen ruwa. Hakanan yana goyan bayan 3-waya da 4-waya SPI serial ports. Tunda sarrafawar layi daya yana buƙatar adadi mai yawa na tashar jiragen ruwa na IO, wanda ya fi kowa shine sarrafa tashar tashar jiragen ruwa ta SPI. Hakanan ST7789 yana goyan bayan nunin launi na 65K, 262K RGB, launin nuni yana da wadatar gaske, yayin da yake tallafawa nunin juyawa da gungurawa da sake kunna bidiyo, nuni ta hanyoyi daban-daban.

Mai sarrafa ST7789 yana amfani da 16bit (RGB565) don sarrafa nunin pixel, don haka zai iya nuna har zuwa launuka 65K akan kowane pixel. Ana yin saitin adireshin pixel a cikin jeri na layuka da ginshiƙai, kuma yanayin haɓakawa da ragewa yana ƙayyade ta yanayin dubawa. Ana yin hanyar nunin ST7789 ta saita adireshin sannan saita ƙimar launi.

B. Gabatarwa ga ka'idar sadarwa ta SPI

Yanayin rubutu na bas SPI mai waya 4 ana nuna shi a cikin adadi mai zuwa:

Hoto 3.3 Yanayin rubutu na bas SPI mai waya 4

CSX zaɓin guntu na bawa ne, kuma guntu za a kunna shi ne kawai lokacin da CSX ya kasance a ƙaramin ƙarfi.
D/CX shine fil ɗin sarrafa bayanai/ umarni na guntu. Lokacin da DCX ke rubuta umarni a ƙananan matakai, ana rubuta bayanai a manyan matakai
SCL shine agogon bas na SPI, tare da kowane gefen tashi yana watsa 1 bit na bayanai;
SDA shine bayanan da SPI ke watsawa, wanda ke watsa bayanai guda 8 a lokaci guda. Ana nuna tsarin bayanan a cikin adadi mai zuwa:

Hoto 3.4 4 Tsarin bayanan watsa SPI

Babban bit farko, watsa farko.
Don sadarwar SPI, bayanai suna da lokacin watsawa, tare da haɗin lokaci na lokaci-lokaci (CPHA) da polarity clock (CPOL):
Matsayin CPOL yana ƙayyade matakin halin rashin aiki na agogon serial synchronous, tare da CPOL=0, yana nuna ƙaramin matakin. CPOL Biyu watsa yarjejeniya
Tattaunawar ba ta da tasiri sosai;

Tsayin CPHA yana ƙayyade ko agogon serial synchronous yana tattara bayanai a gefen tsalle na farko ko na biyu,
Lokacin da CPHL = 0, yi tarin bayanai a farkon canjin canji;
Haɗin waɗannan biyun ya zama hanyoyin sadarwa na SPI guda huɗu, kuma SPI0 ana amfani da ita a China, inda CPHL=0 da CPOL=0

2) Resistive Touch Screen
Allon taɓawa mai tsayayya yana da inci 3.2 a girman kuma an haɗa shi da XPT2046 iko IC ta hanyar fil huɗu: XL, XR, YU, YD.

3) ESP32-WROOM-32E Module
Wannan ƙirar tana da guntu ESP32-DOWD-V3 da aka gina a ciki, Xtensa dual-core 32-bit LX6 microprocessor, kuma yana goyan bayan ƙimar agogo har zuwa 240MHz. Yana da 448KB ROM, 520KB SRAM, 16KB RTC SRAM, da 4MB QSPI Flash. 2.4GHz WIFI, Bluetooth V4.2 da Bluetooth Low Power modules ana tallafawa. GPIO 26 na waje, katin SD mai goyan baya,
UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, bugun jini counter, GPIO, capacitive tabawa firikwensin, ADC, DAC, TWAI da sauran peripherals.

4) Katin MicroSD Ramin
Amfani da yanayin sadarwa na SPI da haɗin ESP32, goyan bayan katunan MicroSD na iyakoki daban-daban.

5) RGB LED Launi Uku
Za a iya amfani da fitulun LED na ja, koren kore da shuɗi don nuna yanayin tafiyar da shirin.

6) Serial Port
Ana amfani da tsarin tashar tashar jiragen ruwa na waje don sadarwar tashar tashar jiragen ruwa.

7) Kebul zuwa Serial Port da Dannawa Sau ɗaya Zazzage kewaye
Babban na'urar ita ce CH340C, ana haɗa ƙarshen ɗaya zuwa kwamfutar USB, ƙarshen ɗaya yana haɗa zuwa tashar tashar ESP32, don cimma tashar tashar USB zuwa TTL.
Bugu da kari, ana kuma makala da’ira ta danna sau daya, wato lokacin zazzage manhajar, za ta iya shiga yanayin da ake saukewa kai tsaye, ba tare da bukatar taba ta waje ba.

8) Interface Baturi
Matsakaicin fil biyu, ɗaya don tabbataccen lantarki, ɗaya don ƙarancin lantarki, samun damar samar da wutar lantarki da caji.

9) Cajin baturi da da'irar Gudanarwa
Babban na'urar ita ce TP4054, wannan da'irar tana iya sarrafa cajin baturi na yanzu, ana cajin baturin lafiya zuwa yanayin jikewa, amma kuma yana iya sarrafa fitar da baturi cikin aminci.

10) BOOT Key
Bayan an kunna samfurin nuni, dannawa zai rage IO0. Idan lokacin da aka kunna tsarin ko aka sake saitin ESP32, rage IO0 zai shiga yanayin zazzagewa. Wasu lokuta ana iya amfani da su azaman maɓalli na yau da kullun.

11) Interface Type-C
Babban tsarin samar da wutar lantarki da tsarin zazzagewar shirin na ƙirar nuni. Haɗa kebul na USB zuwa tashar tashar jiragen ruwa da da'irar zazzagewar dannawa ɗaya, ana iya amfani da ita don samar da wutar lantarki, zazzagewa da sadarwar serial.

12) 5V zuwa 3.3V Voltage Regulator Circuit
Babban na'urar shine ME6217C33M5G LDO mai daidaitawa. Voltage regulator circuit yana goyan bayan 2V ~ 6.5V m voltage shigarwar, 3.3V barga voltage fitarwa, kuma matsakaicin fitarwa na halin yanzu shine 800mA, wanda zai iya cika juzu'itage da bukatun halin yanzu na ƙirar nuni.

13) Sake saitin Maɓalli
Bayan an kunna tsarin nunin, latsawa zai ja maɓallin sake saiti na ESP32 ƙasa (tsarin yanayin yana jan sama), don cimma aikin sake saiti.

14) Resistive Touch Screen Control Circuit
Babban na'urar ita ce XPT2046, wacce ke sadarwa tare da ESP32 ta hanyar SPI.
Wannan kewayawa ita ce gada tsakanin allon taɓawa mai tsayayya da maigidan ESP32, wanda ke da alhakin watsa bayanan akan allon taɓawa zuwa maigidan ESP32, ta yadda za a sami haɗin kai na wurin taɓawa.

15) Fadada fil ɗin shigarwa
Shigar da tashoshin IO guda biyu da ba a yi amfani da su akan tsarin ESP32 an zana su don amfani na gefe.

16) Wurin Kula da Hasken Baya
Babban na'urar shine bututun tasirin filin BSS138. Ɗayan ƙarshen wannan da'irar an haɗa shi da fil ɗin sarrafa hasken baya akan maigidan ESP32, ɗayan kuma an haɗa shi da mummunan sandar hasken baya na allo na LCD LED l.amp. Fitin sarrafa hasken baya yana ja sama, hasken baya, in ba haka ba a kashe.

17) Interface Mai Magana
Dole ne a haɗa tashoshin wayoyi a tsaye. Ana amfani da su don samun damar lasifika da lasifika.

18) Ƙarfin sauti Amplifier Circuit
Babban na'urar ita ce sautin FM8002E ampFarashin IC. Ɗayan ƙarshen wannan da'irar yana haɗe zuwa ESP32 audio DAC fitarwa fil kuma ɗayan ƙarshen yana haɗe da ƙaho. Aikin wannan da'irar shine a tura ƙaramin ƙaho ko lasifika zuwa sauti. Don samar da wutar lantarki 5V, matsakaicin ƙarfin tuƙi shine 1.5W (Load 8 ohms) ko 2W (Load 4 ohms).

19) SPI Peripheral Interface
4-waya kwance ke dubawa. Fitar da fil ɗin zaɓin guntu da ba a yi amfani da shi ba da SPI ke dubawa wanda katin MicroSD ke amfani da shi, wanda za'a iya amfani dashi don na'urorin SPI na waje ko na yau da kullun na IO.

20) I2C Peripheral Interface
4-waya kwance ke dubawa. Fitar da fil biyun da ba a yi amfani da su ba don yin ƙirar I2C, wanda za'a iya amfani da shi don na'urorin IIC na waje ko tashoshin IO na yau da kullun.

Hoto 3.5 na'ura mai ba da hanya tsakanin hanyoyin sadarwa Type-C

A cikin wannan da'irar, D1 shine Schottky diode, wanda ake amfani dashi don hana halin yanzu daga juyawa. D2 zuwa D4 diodes ne na kariyar hawan lantarki don hana tsarin nunin lalacewa saboda wuce gona da iritage ko gajeriyar kewayawa. R1 shine juriya mai ja da ƙasa. USB1 bas ne na Type-C. Nau'in nuni yana haɗawa zuwa nau'in wutar lantarki na Type-C, shirye-shiryen zazzagewa, da sadarwar tashar tashar jiragen ruwa ta hanyar USB1. Inda +5V da GND ke tabbataccen ƙarfin voltage da sigina na ƙasa USB_D- da USB_D+ sigina na USB daban-daban ne, waɗanda ake watsa su zuwa kebul na USB-zuwa serial da'ira.

Hoto na 3.6 Voltage regulator circuit

A cikin wannan da'irar, C16 ~ C19 ita ce capacitor fil fil, wanda ake amfani dashi don kula da kwanciyar hankali na shigarwar vol.tage da fitarwa voltage. U1 shine 5V zuwa 3.3V LDO tare da lambar ƙirar ME6217C33M5G. Domin mafi yawan da'irori a kan nuni module bukatar 3.3V wutar lantarki, da kuma ikon shigar da Type-C dubawa ne m 5V, don haka vol.tagAna buƙatar da'irar juyawa mai gudanarwa.

Hoto 3.7 Resistive touch allon kula da kewaye

A cikin wannan da'irar, C25 da C27 ​​sune masu ƙarfin tacewa ta hanyar wucewa, waɗanda ake amfani da su don kula da shigar vol.tage kwanciyar hankali. R22 da R32 resistors ne masu cirewa da ake amfani da su don kula da tsohowar fil ɗin matsayin babba. U4 shine XPT2046 iko IC, aikin wannan IC shine don samun haɗin haɗin gwiwa.tage darajar ma'anar taɓawa na allon taɓawa ta juriya ta hanyar X+, X-, Y+, Y- fil huɗu, sannan ta hanyar juyawa ADC, ana watsa darajar ADC zuwa maigidan ESP32. Maigidan ESP32 sannan ya canza ƙimar ADC zuwa ƙimar daidaitawar pixel na nuni. XPT2046 yana sadarwa tare da maigidan ESP32 ta hanyar bas ɗin SPI, kuma saboda yana raba bas ɗin SPI tare da nuni, ana sarrafa matsayin damar ta hanyar fil ɗin CS. Fitin PEN shine fil ɗin katsewar taɓawa, kuma matakin shigarwa yana da ƙasa lokacin da abin taɓawa ya faru.

Hoto 3.8 USB zuwa tashar tashar jiragen ruwa da da'irar zazzagewar dannawa ɗaya

A cikin wannan kewaye, U3 shine CH340C USB-to-serial IC, wanda baya buƙatar oscillator crystal na waje don sauƙaƙe ƙirar kewaye. C6 shine madaidaicin tacewa ta hanyar wucewa da ake amfani dashi don kula da shigar voltage kwanciyar hankali. Q1 da Q2 sune nau'in nau'in nau'in NPN, kuma R6 da R7 sune tushen triode masu iyakancewa na yanzu. Ayyukan wannan da'irar shine gane USB zuwa tashar jiragen ruwa na serial da kuma danna sau ɗaya aikin saukewa. Siginar USB shigarwa da fitarwa ne ta UD+ da UD- fil, kuma ana aika shi zuwa maigidan ESP32 ta hanyar RXD da TXD fil bayan juyawa. Ka'idar zazzagewar dannawa ɗaya:

A. Fitin RST da DTR na CH340C babban matakin fitarwa ta tsohuwa. A wannan lokacin, Q1 da Q2 triode ba su kunne, kuma IO0 fil da sake saiti na babban iko na ESP32 ana ja su zuwa babban matakin.
B. RST da DTR fil na CH340C fitarwa ƙananan matakan, a wannan lokacin, Q1 da Q2 triode har yanzu ba a kunne ba, kuma IO0 fil da sake saiti na babban iko na ESP32 har yanzu suna ja har zuwa manyan matakan.
C. RST fil na CH340C ya kasance baya canzawa, kuma fil ɗin DTR yana fitar da babban matakin. A wannan lokacin, har yanzu an yanke Q1, Q2 yana kunne, IO0 fil na ESP32 master har yanzu yana jan sama, kuma fil ɗin sake saiti yana ja ƙasa, kuma ESP32 ya shiga yanayin sake saiti.
D. CH340C's RST fil yana fitar da babban matakin, DTR fil yana fitar da ƙaramin matakin, a wannan lokacin Q1 yana kunne, Q2 a kashe, fil ɗin sake saiti na babban iko na ESP32 ba zai zama mai girma nan da nan ba saboda ana cajin capacitor da aka haɗa, ESP32 yana har yanzu yana cikin yanayin sake saiti, kuma IO0 fil nan da nan ya ja ƙasa, a wannan lokacin zai shiga yanayin zazzagewa.

Hoto 3.9 Ƙarfin sauti ampkewaye kewaye

A cikin wannan da'irar, R23, C7, C8 da C9 sun haɗa da da'irar tacewar RC, kuma R10 da R13 sune ribar daidaitawar masu aiki. amplififi. Lokacin da ƙimar juriya na R13 ba ta canzawa, ƙarami ƙimar juriya na R10, mafi girman ƙarar mai magana ta waje. C10 da C11 su ne masu shigar da haɗin kai. R11 shine resistor mai cirewa. JP1 ita ce tashar ƙaho/lasifika. U5 shine FM8002E ƙarfin sauti ampFarashin IC. Bayan shigar da AUDIO_IN, siginar DAC mai jiwuwa ita ce ampan inganta ta FM8002E riba da fitarwa zuwa mai magana / mai magana ta VO1 da VO2 fil. SHUTDOWN shine fil ɗin kunna FM8002E. An kunna ƙananan matakin. Ta hanyar tsoho, ana kunna babban matakin.

Hoto 3.10 ESP32-WROOM-32E babban da'irar sarrafawa

A cikin wannan da'irar, C4 da C5 sune capacitors filter filter, kuma U2 sune ESP32-WROOM-32E. Don cikakkun bayanai game da da'irar ciki na wannan ƙirar, da fatan za a duba takaddun hukuma.

Hoto 3.11 Maɓalli na sake saiti

A cikin wannan da'irar, KEY1 shine maɓalli, R4 shine resistor-up, kuma C3 shine capacitor na jinkiri. Sake saitin ƙa'ida:

A. Bayan kunnawa, C3 caji. A wannan lokacin, C3 yayi daidai da gajeriyar kewayawa, RESET fil yana ƙasa, ESP32 yana shiga yanayin sake saiti.
B. Lokacin da aka caje C3, C3 yayi daidai da buɗe da'ira, RESET fil an ja sama, an gama saitin ESP32, kuma ESP32 ya shiga yanayin aiki na yau da kullun.
C. Lokacin da aka danna KEY1, RESET fil yana ƙasa, ESP32 ya shiga yanayin sake saiti, kuma C3 yana fitowa ta hanyar KEY1.
D. Lokacin da aka saki KEY1, ana caje C3. A wannan lokacin, C3 yayi daidai da gajeriyar kewayawa, RESET fil yana ƙasa, ESP32 har yanzu yana cikin yanayin SAKETA. Bayan cajin C3, fil ɗin sake saiti yana ja sama, an sake saitin ESP32 kuma ya shiga yanayin aiki na yau da kullun.

Idan Sake saitin bai yi nasara ba, ƙimar haƙurin C3 za a iya ƙarawa yadda ya kamata don jinkirta ƙaramar matakin matakin sake saitin fil.

Hoto 3.12 Interface kewaye na serial module

A cikin wannan da'irar, P2 shine wurin zama na 4P 1.25mm, R29 da R30 sune masu tsayayyar ma'auni na impedance, kuma Q5 shine bututun tasirin filin da ke sarrafa isar da wutar lantarki ta 5V. R31 resistor ne mai saukarwa. Haɗa RXD0 da TXD0 zuwa serial fil, kuma ba da wuta ga sauran fil biyun. Ana haɗa wannan tashar jiragen ruwa zuwa tashar tashar jiragen ruwa iri ɗaya kamar na USB-zuwa serial tashar tashar jiragen ruwa.

Hoto 3.13 Extended IO da na kewaye da kewaye

A cikin wannan kewaye, P3 da P4 sune kujerun farar 4P 1.25mm, kuma JP3 sune kujerun farar 2P 1.25mm. R33 da R34 sune I2C fil-pure resistors. SPI_CLK, SPI_MISO, SPI_MOSI fil suna raba tare da katin MicroSD SPI fil. Fil SPI_CS, IIC_SCL, IIC_SDA, IO35, IO39 ba na'urorin da ke kan jirgi ke amfani da su ba, don haka ana fitar da su don haɗa na'urorin SPI da IIC, kuma ana iya amfani da su don IO na yau da kullun. Abubuwan da ya kamata a lura da su:

A. IO35 da IO39 na iya zama fil ɗin shigarwa kawai;
B. Lokacin da ake amfani da fil ɗin IIC don IO na yau da kullun, yana da kyau a cire juriya na R33 da R34;

Hoto 3.13 Cajin baturi da kewaye sarrafa fitarwa

A cikin wannan da'irar, C20, C21, C22 da C23 sune capacitors filter filter. U6 shine sarrafa cajin baturi na TP4054 IC. R27 yana daidaita cajin baturi na yanzu. JP2 wurin zama na farar 2P 1.25mm, an haɗa shi da baturi. Q3 shine tashar P-FET. R28 shine resistor grid Q3. TP4054 yana cajin baturi ta hanyar fil ɗin BAT, ƙaramin juriya na R27, mafi girman cajin halin yanzu, matsakaicin shine 500mA. Q3 da R28 tare sun zama da'irar fitar da baturi, lokacin da babu wutar lantarki ta hanyar sadarwa ta Type-C, + 5V vol.tage shine 0, sa'an nan kuma an ja ƙofar Q3 zuwa ƙananan matakin, magudanar ruwa da tushen suna kunne, kuma baturi yana ba da wutar lantarki ga dukan tsarin nuni. Lokacin da aka kunna ta hanyar haɗin Type-C, + 5V voltage shine 5V, sannan ƙofar Q3 tana da ƙarfin 5V, an yanke magudanar ruwa da tushen, kuma an katse wutar lantarki.

Hoto 3.14 18P LCD panel wiring welding interface

A cikin wannan da'irar, C24 shine madaidaicin tacewa, kuma QD1 shine 18P 0.8mm farar ruwa crystal allon waldawa. QD1 yana da siginar siginar allo na juriya, allon LCD voltage fil, fil ɗin sadarwa na SPI, fil ɗin sarrafawa da fil ɗin kewayawa na baya. ESP32 yana amfani da waɗannan fil don sarrafa LCD da allon taɓawa.

Hoto 3.15 Zazzage maɓallin kewayawa

A cikin wannan da'irar, KEY2 shine maɓalli kuma R5 shine resistor-up. IO0 yana da girma ta tsohuwa kuma yana da ƙasa lokacin da aka danna KEY2. Latsa ka riƙe KEY2, kunnawa ko sake saiti, kuma ESP32 zai shigar da yanayin saukewa. A wasu lokuta, ana iya amfani da KEY2 azaman maɓalli na yau da kullun.

Hoto 3.15 Da'irar gano matakin baturi

A cikin wannan da'irar, R2 da R3 suna partal voltage resistors, da C1 da C2 sune masu iya tacewa. Baturin voltage BAT+ shigar da siginar yana wucewa ta cikin resistor resistor. BAT_ADC shine voltage darajar a duka ƙarshen R3, wanda ake aikawa zuwa ESP32 master ta hanyar shigar da fil, sa'an nan kuma canza ta ADC zuwa karshe samun baturi vol.tage daraja. VoltagAna amfani da mai rarrabawa saboda ESP32 ADC yana canza matsakaicin 3.3V, yayin da jikewar baturi vol.tage shine 4.2V, wanda ba shi da iyaka. The samu voltage ninka ta 2 shine ainihin baturin voltage.

Hoto 3.16 LCD kula da hasken baya

A cikin wannan da'irar, R24 shine juriya na gyara kuskure kuma ana riƙe shi na ɗan lokaci. Q4 shine bututun tasirin filin N-channel, R25 shine juzu'i na grid Q4, kuma R26 shine mai iyakance hasken baya na yanzu. Hasken baya na LCD LED lamp yana cikin yanayin layi ɗaya, madaidaicin sanda yana haɗa zuwa 3.3V, kuma an haɗa sandar mara kyau zuwa magudanar Q4. Lokacin da ikon sarrafawa LCD_BL yana fitar da babban voltage, an kunna magudanar ruwa da sandar tushe na Q4. A wannan lokacin, ƙananan igiya mara kyau na hasken baya na LCD yana ƙasa, kuma hasken baya LED lamp yana kunna kuma yana fitar da haske. Lokacin da fil ɗin sarrafawa LCD_BL yana fitar da ƙaramin voltage, an yanke magudanar ruwa da tushen Q4, kuma an dakatar da hasken baya mara kyau na allon LCD, kuma hasken baya LED l.amp ba a kunna. Ta tsohuwa, hasken baya na LCD yana kashe. Rage juriya na R26 na iya ƙara matsakaicin haske na hasken baya. Bugu da kari, LCD_BL fil na iya shigar da siginar PWM don daidaita hasken baya na LCD.

Hoto 3.17 LCD kula da hasken baya

A cikin wannan kewaye, LED2 RGB ne mai launi uku lamp, kuma R14 ~ R16 ne mai launi uku lamp na yanzu iyakance resistor. LED2 yana ƙunshe da fitilun LED ja, kore da shuɗi, waɗanda haɗin haɗin anode ne gama gari, IO16, IO17 da IO22 fil ɗin sarrafawa ne guda uku, waɗanda ke haskaka fitilun LED a ƙaramin matakin kuma suna kashe hasken LED a babban matakin.

Hoto 3.18 MicroSD katin Ramin dubawa da'ira

A cikin wannan da'irar, SD_CARD1 shine ramin katin MicroSD. R17 zuwa R21 sune resistors masu ja don kowane fil. C26 shine capacitor tacewa. Wannan kewayon keɓancewa yana ɗaukar yanayin sadarwa na SPI. Yana goyan bayan ajiya mai sauri na katunan MicroSD.
Lura cewa wannan keɓancewa yana raba bas ɗin SPI tare da keɓantawar SPI.