Banggood ST7789 LCD Display Module litaelo

Taelo

Ena ke LCD e akaretsang ea Module, skrine ea IPS, 2inch diagonal, 240 × 320 resolution, e nang le molaoli ea kentsoeng, ea buisanang ka SPI interface.

Sebopeho

SPI segokanyimmediamentsi sa sebolokigolo, hloka bonyane GPIO bakeng sa ho laola Ho tla le lisebelisoa tsa ntshetsopele le bukana ea tataiso

Litlhaloso

• Mokhanni: ST7789
• Sebopeho: SPI
• Pontšo ea 'mala: RGB, 262K mmala
• Qeto: 240×320
• Leseli la morao: LED
• Tshebetso voltage: 3.3v

Sehokedi

LETŠOAO	Tlhaloso
VCC	Matla (33V input)
GND	Fatše
DIN	Ho kenya data ho SPI
CLK	Ho kenya oache ea SPI
CS	Khetho ea chip, e tlase e sebetsang
DC	Khetho ea data/taelo (e phahameng bakeng sa data, e tlase bakeng sa taelo)
RST	Seta botjha tshebetsong
BL	Backlight

Tlhaloso ea Hardware 

ST7789V e tšehetsa RGB444, RGB565 le RGB666 mefuta e meraro. LCD ena e sebelisa RGB565. Bakeng sa boholo ba balaoli ba LCD, ho na le li-interfaces tse 'maloa tsa ho khetha, mojule ona re sebelisa sebopeho sa SPI se potlakileng le se bonolo.

Protocol ea puisano

Hlokomela: Ha e tšoane le protocol ea SPI ea moetlo, e sebelisa MOSI feela ho romella data ho tloha ho master ho ea ho lekhoba bakeng sa ponts'o ea LCD. Bakeng sa lintlha tse ling, sheba leqephe la 105.

RESX: Reset, e lokela ho huleloa ha motlakase o buletsoe, o behe nako e 'ngoe ea 1. CSX: Khetha chip ea makhoba. Chip e lumelletsoe feela CS e behiloeng Tlase

D/CX: Khetho ea data / taelo; DC=0, ngola taelo; DC=1, ngola lintlha
SDA: Boitsebiso bo fetisitsoe. (RGB data)

SCL: Oache ea SPI

Protocol ea puisano ea SPI ea phetisetso ea data e sebelisa likarolo tsa taolo: karolo ea oache (CPHA) le polarity ea oache (CPOL):

CPOL e hlalosa boemo ha sesupanako sa kamahanyo se sa sebetse. Haeba CPOL=0, joale e TLASE. CPHA e hlalosa hore na data e qala ka nako efe. CPHL=0 - ho ea pele, ho seng joalo ho ea bobeli

Motsoako ona oa likotoana tse peli o fana ka mekhoa e 4 ea phetiso ea data ea SPI. E sebelisoang hangata ke SPI0 mode, ke hore GPHL=0 le CPOL=0.

Ho latela setšoantšo se kaholimo, phetisetso ea data e qala pheletsong ea pele e oelang, data ea 8bit e fetisoa ka potoloho e le 'ngoe ea oache. Setšoantšo sa SPI0. MSB

Raspberry Pi examples

Bakeng sa Raspberry Pi re fana ka exampe thehiloe ho C le python

Lumella SPI

Bula terminal 'me u tsamaise litaelo ho nolofalletsa sebopeho sa SPI

Khetha likhetho tsa Interfacing-> SPI-> E
Ebe o qala hape Raspberry Pi

Ho kenya Lilaebrari

https://www.waveshare.com/wiki/File:2inch_LCD_Module_manual_1.png

EA-2835

WiringPi

Python2

Python3

Khokahano ea lisebelisoa

Ka kopo hlokomela, hore mebala ea lithapo e ka fapana. Sebelisa mabitso a phini bakeng sa 

Wiring

LCD ea 2inch	Nomoro ea boto	Nomoro ea BCM
VCC	3.3V	3.3V
GND	GND	GND
DIN	19	MOSI
CLK	23	LEKHOTLA
CS	24	CEO
DC	22	P25
RST	13	P27
BL	12	P18

Khoasolla mohlalaamples 

Bula terminal ebe u khoasolla examples

Teko Example

C likhoutu

Likhoutu tsa Python

Sephetho se lebelletsoeng

1. Pontšo e hloekisoa hore e be tšoeu
2. Hlahisa linomoro le likhoele
3. Thala khutlonnetsepa
4. Thala mola
5. Thala lidikadikwe tse hlano
6. Hlahisa setšoantšo sa 100×100
7. hlahisa setšoantšo sa 240×320

Mohlala oa STM32amples

• Khoasolla likhoutu tsa demo ho tsoa ho Waveshare wiki, tsela ea likhoutu tsa STM32 ke ~/STM32/
• Bula morero ho tsoa ho \XNUCLEO-F103RB\MDK ARM\ ka software ea Keil. Hlokomela hore likhoutu li thehiloe lilaebraring tsa HAL.
• Boto ea nts'etsopele eo re e sebelisang ke WaveshareXNUCLEO-F103RB

Khokahano ea lisebelisoa

LCD ea 2inch	Tlhaloso: XNUCLEO-F103RB
VCC	5V
GND	GND
DIN	PA7
CLK	PAS
CS	PB6
DC	PA8
RST	PA9
BL	PC7

Sephetho se lebelletsoeng

1. Pontšo e hloekisoa hore e be tšoeu
2. Hlahisa linomoro le likhoele
3. Thala khutlonnetsepa
4. Thala mola
5. Thala lidikadikwe tse hlano
6. Hlahisa setšoantšo sa 70×70

Arduino

• Khoasolla mohlalaamples ho tloha wiki. E notlolle. Tsela ea Arduino examples ke ~/Arduino UNO/…
• Kopitsa lifoldara bukeng ea Arduino ho 【 Buka ea ho kenya 】 / lilaebrari/ (Ka kakaretso buka ea ho kenya ke C:\Program Files (x86)\Arduino\libraries)
• Bula software ea Arduino IDE, ebe o tobetsa File -> MohlampLes ho hlahloba hore na LCD_2inch likhoutu li teng.
• Boto ea ntlafatso e sebelisitsoeng ke Arduino UNO.

Khokahano ea lisebelisoa

LCD ea 2inch	UNO PLUS
VCC	5V
GND	GND
DIN	D11
CLK	D12
CS	D10
DC	D7
RST	D8
BL	D9

Sephetho se lebelletsoeng

1. Pontšo e hloekisoa hore e be tšoeu
2. Hlahisa linomoro le likhoele
3. Thala khutlonnetsepa
4. Thala mola
5. Thala lidikadikwe tse hlano
6. Hlahisa setšoantšo sa 70×70

Litokomane / Lisebelisoa

Banggood ST7789 LCD Display Module [pdf] Litaelo ST7789, LCD Pontšo ea Mojule

Litšupiso

• Bukana ea Mosebelisi