4.0inch SPI module DLS31040B1_DLS31040B2 Buka ea mosebelisi CR2023-MI4043
DLS31040B1 & DLS31040B2
4.0inch IPS TFT SPI Display Module
Bukana ea Mosebelisi
Tlhaloso ea Mohloli
Lenane la lisebelisoa le bontšitsoe setšoantšong se latelang:
| Directory | Tlhaloso ea Litaba |
| 1-Demo | E na le sampmananeo le litaelo tsa tšebeliso ea li-platform tse fapaneng |
| 2-Tlhaloso | Ho kenyeletsoa litlhaloso tsa skrini sa LCD, litlhaloso tsa sehlahisoa, le ho qala ha mokhanni oa skrine oa LCD IC |
| 3-Sebopeho_Sets'oants'o | Ho kenyeletsoa litokomane tsa sebopeho sa skrini sa touch, litokomane tsa sebopeho sa boholo ba sehlahisoa |
| 4-Driver_IC_Data_Sheet | Ho kenyeletsoa mokhanni oa skrineng sa LCD IC Datasheet le Touch Screen driver IC Datasheet |
| 5-Sekema | Ho kenyeletsoa setšoantšo sa schematic sa sehlahisoa, setšoantšo sa karolo ea LCD Altium, le sephutheloana sa PCB. |
| 6-Buka_ya_Mosebedisi | E na le tokomane ea litaelo tsa basebelisi ba sehlahisoa |
| 7-Litlhaku&Picture_Molding_Tool | E na le software ea ho ntša litšoantšo, software ea ho ntša litlhaku, le litaelo tsa tšebeliso ea software. Liteko tsa pontšo ea setšoantšo le mongolo ho sample lenaneo hloka tshebediso ya tsena tse peli Software bakeng sa hlobo nka. |
Tlhaloso ea Sehokelo
Sebopeho se ka morao ho module se bontšoa setšoantšong se latelang:
| Nomoro | Module Pin | Pin Function Tlhaloso |
| 1 | VCC | LCD power positive (Ho khothaletsoa ho hokela ho 5V. Ha o hokahantsoe le 3.3V, khanya ea backlight e tla fokola hanyane) |
| 2 | GND | LCD Power ground |
| 3 | LCD_CS | Letšoao la taolo ea khetho ea LCD, boemo bo tlase bo sebetsa |
| 4 | LCD_RST | Letšoao la taolo ea ho seta botjha LCD, ho seta boemo bo tlase |
| 5 | LCD_RS | Taelo ea LCD / lets'oao la taolo ea khetho ea data Boemo bo phahameng: data, boemo bo tlase: taelo |
| 6 | SDI(MOSI) | SPI bese e ngola lets'oao la data (karete ea SD le skrini sa LCD se sebelisoa hammoho) |
| 7 | TS'ELISO | Letšoao la oache ea libese ea SPI (karete ea SD le skrine sa LCD se sebelisoa hammoho) |
| 8 | LED | Letšoao la ho laola lebone la LCD (Haeba u hloka taolo, ka kopo, hokela lithakhisa. Haeba u sa hloke taolo, u ka e tlola) |
| 9 | SDO(MISO) | Letšoao la data la SPI (karete ea SD le skrini sa LCD li sebelisoa hammoho) |
| 10 | CTP_SCL | Letšoao la oache ea libese ea Capacitive IIC (li-module tse se nang li-touch screen ha li hloke ho hokela) |
| 11 | CTP_RST | Letšoao la taolo ea ho seta skrineng sa Capacitor touch, reset ea boemo bo tlase (li-module tse se nang li-skrini tsa touch ha li hloke ho hokahana) |
| 12 | CTP_SDA | Capacitive touch screen IIC lets'oao la data la libese (li-module tse se nang li-touch screen ha li hloke ho hokela) |
| 13 | CTP_INT | Capacitor touch screen IIC lets'oao la ho ama libese, ha o hlahisa ho ama, kenya boemo bo tlase ho taolo ea mantlha (li-module tse se nang li-skrini tsa ho ama ha li hloke ho hokahana) |
| 14 | SD_CS | Letšoao la taolo ea khetho ea karete ea SD, boemo bo tlase bo sebetsa (ntle le ts'ebetso ea karete ea SD, e ka khaoloa) |
Molao-motheo oa ho sebetsa
3.1. Kenyelletso ho Molaoli oa ST7796S
Selaoli sa ST7796S se tšehetsa qeto e phahameng ea 320 * 480 'me se na le GRAM ea 345600 byte ka boholo. Ka nako e le 'ngoe e ts'ehetsa libese tsa data tsa 8-bit, 9-bit, 16-bit, 18-bit le 24-bit parallel port data, hammoho le likou tsa seriale tsa terata tse 3 le tse 4 tsa SPI. Ka lebaka la palo e kholo ea likou tsa IO tse hlokahalang bakeng sa taolo e ts'oanang, taolo ea boema-kepe ea SPI ke eona e sebelisoang haholo. ST7796S e boetse e ts'ehetsa lipontšo tsa mebala tsa 65K, 262K, le 16.7M RGB, tse nang le mebala e metle ea ponts'o. E boetse e ts'ehetsa ponts'o ea ho potoloha le ho tsamaisa, hammoho le ho bapala video, ka mekhoa e fapaneng ea ponts'o.
Molaoli oa ST7796S o sebelisa 16bit (RGB565) ho laola ponts'o ea pixel e le 'ngoe, kahoo e khona ho hlahisa mebala e fihlang ho 65K ka pixel. Aterese ea pixel e behiloe ka tatellano ea mela le likholomo, 'me tataiso ea ho eketseha le ho fokotseha e khethoa ke mokhoa oa ho hlahloba. Mokhoa oa ho bonts'a ST7796S o ipapisitse le ho beha aterese pele ebe o beha boleng ba 'mala.
3.2. Selelekela ho SPI Communication Protocol
Nako ea ho ngola ea bese ea SPI ea terata e 4 e bonts'oa setšoantšong se latelang:
CSX ke khetho ea chip ea makhoba, 'me chip e tla lumelloa feela ha CSX e le maemong a tlase a matla.
D/CX ke phini ea taolo ea data/taelo ea chip. Ha DCX e ngola litaelo maemong a tlase, data e ngotsoe maemong a phahameng SCL ke oache ea libese ea SPI, e nang le moeli o mong le o mong o ntseng o phahama o fetisang 1 bit ea data; SDA ke data e fetisoang ke SPI, e fetisang likotoana tse 8 tsa data hang. Sebopeho sa data se bontšoa setšoantšong se latelang:
Phahamisa hanyane pele, fetisetsa pele.
Bakeng sa puisano ea SPI, data e na le nako ea phetisetso, e kopantsoeng le karolo ea oache ea nako ea nnete (CPHA) le polarity ea oache (CPOL):
Boemo ba CPOL bo lekanya boemo ba boemo bo sa sebetseng ba oache ea serial synchronous, ka CPOL=0, e bonts'ang boemo bo tlase. CPOL pair transmission protocol Puisano e ne e se na tšusumetso e ngata;
Bophahamo ba CPHA bo etsa qeto ea hore na oache ea serial synchronous e bokella data moeling oa pele kapa oa bobeli oa ho tlola,
Ha CPHL=0, etsa pokello ea lintlha karolong ea pele ea phetoho;
Motsoako oa mefuta ena e 'meli ea mekhoa e mene ea puisano ea SPI, le SPI0 e sebelisoa hangata Chaena, moo CPHL=0 le CPOL=0
Tlhaloso ea Hardware
4.1. 6P capacitive touch screen interface FPC
P1 ke sets'oants'o sa FPC se nang le sebaka sa 6P 0.5mm, se sebelisetsoang ho hokahanya thapo ea 6P FPC ea capacitive touch screen le ho hokahanya matšoao.
4.2. Phallo ea motlakase voltage tsitsisa potoloho
Potoloho ena e sebelisetsoa ho tsitsisa phallo ea voltage ea mojule, moo VCC e leng voltage, VCC3.3V ke mojule oa ho kenya voltage, 'me C1 ke "bypass filter capacitor". VCC e ka kopanngoa le 5V kapa 3.3V, 'me e kgothaletswa ho hokela 5V hobane feela ka ho hokela 5V ho ka VCC3.3 tlhahiso 3.3V. Haeba e hokahane le 3.3V, VCC3.3 output voltage tla ba ka tlase ho 3.3V, e leng se tla etsa hore khanya ea backlight ea skrine ea LCD e fifale.
4.3. Pokello ea sekotjana sa karete ea SD
SD_ CARD1 ke sekotjana sa karete ea Micro SD bakeng sa ho kenya likarete tsa Micro SD, ho nolofalletsa ho sebelisa mesebetsi ea katoloso ea karete ea SD. Bese ea SPI le LCD tse sebelisitsoeng lia arolelanoa.
4.4. Backlight control circuit
R1 e boloketsoe ho lumellana le potoloho ea taolo ea J3Y, ka ho toba e sebelisa 0 ohm resistor. R2 ke sehanyetsi se fokotsang khanya ea morao-rao, R7 ke mohanyetsi oa ho hula, 'me Q1 ke BSS138 N channel-effect transistor. LED ke lets'oao la taolo, 'me LEDK e hokahane le palo e mpe ea leseli le ka morao. Ha LED e emisoa (ntle le letšoao la ho laola), ka lebaka la ho hula ha R7, mohloli oa BSS138 o boemong bo phahameng, ka heke ea oona le ho tsamaisa metsi, LEDK e thehiloe, 'me potoloho ea backlight e tsamaisa, kahoo e khantša leseli. . Ha tlhahiso ea LED e le tlase, mohloli oa BSS138 o tlaase, heke ea oona le drain li khaoloa, LDEK e emisitsoe, 'me potoloho ea backlight e khaotsoe, kahoo e tima leseli; Ha tlhahiso ea LED e le boemong bo phahameng, mohloli oa BSS138 o boemong bo phahameng, heke ea eona le drainage e tsamaisa, LDEK e theohile, 'me potoloho ea backlight e tsamaisa, kahoo e khantša leseli;
4.5. Capacitor touch screen IIC signal level conversion circuit
R3, R4, R5 le R6 ke sehanyetsi sa ho hula, 'me Q2 le Q3 ke BSS138 N-channel FETs. CTP_ SDA、 CTP_ IIC lets'oao la lets'oao le tsoang ho terminal e kholo ea SCL, 3V3_ CTP_ SDA, 3V3_ CTP_ SCL ke lets'oao le fetotsoeng la IIC. Mosebetsi oa potoloho ena ke ho fetolela lets'oao la 5V kapa 3.3V IIC ho tloha setsing sa taolo se seholo ho ea ho lets'oao la 3.3V IIC, ebe o le kenya ka har'a mojule oa capacitive touch (hobane mojule oa capacitive touch o ka amohela matšoao a 3.3V feela) . E ka boela ea fetola phallo ea lets'oao la 3.3V ho tsoa ho mojule oa capacitive touch ho ba lets'oao la 5V ebe oa le kenya taolong e kholo. Molao-motheo ke (ho nka SDA joalo ka example): mohloli oa BSS138 o lula o le boemong ba 3.3V, 'me ha CTP_ SDA e le boemong bo tlaase, metsi a BSS138 a le boemong, mohloli oa mohlolitage phahame ho feta drain, heke le drain li tsamaisa, 'me heke e boetse e le boemong bo tlaase, 3V3_ CTP_ SDA ke boemo bo tlaase; Ha CTP_ SDA e le maemong a holimo, ka drainage ea 5V ea BSS138.
Mohloli voltage tlase ho feta mokelikeli, 'me heke le drain li khaotsoe. Heke e huleloa ho fihlela boemong bo phahameng ba 3.3V, ka 3V3_ CTP_ SDA ke boemo bo phahameng. ka ho fapanyetsana.
4.6. 14P Header pin interface
J2 ke 14P pin, R8 ke mohanyetsi oa ho hula oa karete ea SD CS pin. Pini ea 14P e sebelisetsoa ho hokahanya le taolo e kholo, e ka kenngoa ka ho toba kapa ea hokeloa ka thapo ea DuPont. Hobane karete ea SD le LCD li arolelana bese ea SPI, qala ka ho hula pinana ea CS ea karete ea SD ho tima mesebetsi ea eona le ho qoba likhohlano tsa lisebelisoa tsa libese tsa SPI ha module e sebelisoa.
4.7. Potoloho ea sebopeho sa 14P FPC
P2 ke mojule oa 14P FPC cable interface, e ka hokahanngoang feela le taolo e kholo ka thapo ea FPC.
4.8. Laola potoloho ea boemo ba pontšo ea phetoho
U2 ke IC ea phetoho ea boemo e fetohang lipakeng tsa 5V le 3.3V. Potoloho ena e sebelisa mokhoa o le mong feela oa 5V ho ea ho 3.3V, 'me matšoao ao mojule a lokelang ho a ngola a fetoloa ka potoloho ena.
4.9. 48P LCD skrine tjheseletsa segokanyimmediamentsi sa sebolokigolo
QD1 ke 48P pad e nang le sebaka sa 0.8mm. E sebelisoa ho cheselletsa LCD e le hore e ka fumana matšoao ho tsoa taolong e kholo.
Example litaelo tsa tšebeliso ea lenaneo
Bakeng sa litaelo tse tobileng, ka kopo sheba ho example tokomane ea litaelo tsa tšebeliso ea lenaneo ho example lenaneo la directory.
A. Hokela mochine oa pontšo ho boto e kholo ea taolo (ho kenya ka ho toba, sebelisa cable ea DuPont kapa FPC cable connection);
B. Kopanya boto e kholo ea taolo ho PC (e hloka ho kopanngoa ho ea ka mokhoa oa ho jarolla) le matla holim'a boto e kholo ea taolo;
C. Fetola, bokella, le ho jarolla sample mananeo;
D. Sheba pontšo ea mojule 'me u hlahlobe hore na lenaneo le sebetsa ka katleho;
Software e tloaelehileng ea lisebelisoa
ExampLenaneo le hloka ho bonts'a Sechaena le Senyesemane, matšoao le litšoantšo, kahoo e hloka ts'ebeliso ea software ea ho nka hlobo. Ho na le mefuta e 'meli ea software e nkang hlobo: Image2Lcd le PCtoLCD2002. Image2Lcd e sebelisoa bakeng sa ho ntša litšoantšo tsa mebala, ha PCtoLCD2002 e sebelisoa bakeng sa mongolo kapa setšoantšo sa monochrome.
Software ea ho nka hlobo ea PCtoLCD2002 e behiloe ka tsela e latelang:
Dot Matrix Format Selection Yin Code
Khetha mokhoa oa mola ka mola bakeng sa ho nka hlobo
Khetha tsela eo hlobo e nkang ka eona ka tsela ea oache (e nang le boemo bo holimo ka pele)
Nomoro ea Palo ea Khetho ea Sisteme ea Hexadecimal Nomoro
Kgetho ya Sebopeho se Tloaelehileng sa C51 Format
Mokhoa o ikhethileng oa ho hlophisa o ka fumanoa ho tse latelang webleqephe: http://www.lcdwiki.com/Chinese_and_English_display_modulo_settings
Litlhophiso tsa software tsa Image2Lcd li bonts'oa setšoantšong se latelang:
Software ea Image2Lcd e hloka ho hlophisoa hore e hlahlobe ka holimo, ho tloha ho le letšehali ho ea ho le letona, ho tloha holimo ho ea tlaase, le ka likotoana tse tlaase ka pele.
Litokomane / Lisebelisoa
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Elecrow DLS31040B1, DLS31040B2 4.0inch IPS TFT SPI Display module [pdf] Bukana ea Mosebelisi DLS31040B1, DLS31040B2, DLS31040B1 DLS31040B2 4.0inch IPS TFT SPI Display Module, DLS31040B1 DLS31040B2, 4.0inch IPS TFT SPI Display Module, IPS TFT SPI Display Module, TFT SPI Display Module, Display Module |