ra8875 tft display made in china

ER-TFTM050-2 is 480x272 dots 5" color tft lcd module display with RA8875 controller board,superior display quality,super wide viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO,and ARM .It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.

It supports 8080 6800 8-bit,16-bit parallel,3-wire,4-wire,I2C serial spi interface. Built-in MicroSD card slot. It"s optional for 4-wire resistive touch panel (IC RA8875 built-in touch controller),capacitive touch panel with controller,font chip, flash chip and microsd card. We offer two types connection,one is pin header and the another is ZIF connector with flat cable.Mounting on board by default. There is no capacitive touch panel connection on the board of ER-TFTM50-2,its capacitive touch panel needs to be connected with your external board.Now we design another new board with capacitive touch connection named_ER-TFTM050A-2.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".Here is the link for 5" TFT Touch Shield with Libraries, Examples.Schematic Diagram for Arduino Due,Mega 2560 and Uno . For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and development kit at the bottom of this page.

ER-TFTM050A2-3-3661 is 800x480 dots 5" color tft lcd display with RA8875 controller board and capacitive touch panel with touch controller,superior display quality,super wide viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO,and ARM .It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".Here is the link for5" TFT capacitive touch shield with libraries,examples,schematic diagram for Arduino Due,Mega 2560 and Uno. For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and development kit at the bottom of this page.

The organization keeps for the procedure concept "scientific administration, superior quality and effectiveness primacy, shopper supreme for Ra8875 Display, Tft Lcd Screen Module, Graphic Lcd Module, Industrial Touch Panels,Custom Touch Screen Displays. We wish to just take this opportunity to ascertain long-term enterprise relationships with clients from all over the earth. The product will supply to all over the world, such as Europe, America, Australia,Morocco, Frankfurt,Hungary, Florence.Our aim is to help customers realize their goals. We have been making great efforts to achieve this win-win situation and sincerely welcome you to join us. In a word, when you choose us, you choose a perfect life. Welcome to visit our factory and welcome your order! For further inquiries, you should do not hesitate to contact us.

2017/03 To Small-medium TFT-LCD requirement, RAIO announce its new RA8871M/RA8873M controller, with the powerful features make the device suitable for both HVGA and WVGA display applications in the mainstream market.

2015/02RAIO launches new products - RA8876/RA8877, with up to 64M Byte external SDRAM used for frame buffer, RA8876/RA8877 is suitable for displaying up to WXGA resolution (1366x768) at 24bit colors.

I have the same display from long time now, I"ve build up a library for that since I was not happy with the Adafruit solution.http://https://github.com/sumotoy/RA8875

Since months of testing I can say I know this display quite well, in my library I"ve used SPI transaction since they fit perfectly with this display, infact RA8875 support max 6.7Mhz in write and 3.3Mhz in read (looks strange but true and depends of the choosed xtal) so I can always work at the max supported speed.

In particular, the TFTM070 doesn not need the rst pin since it has his reset circuit in the design, I have to leave disconnected or it doesnt turn on.

But recently I had some big headache when I"ve tried to connect TFTM070,Audio board and SD holder working in the alternative SPI as should be if audio board it"s in use. Of course I"ve used the 74hc125 on RA8875 MISO but it doesn"t solve completely problems since display works but SD always fails! After hours of testing I find that disconnecting SCLK from display cause the SD works properly, I don"t know if it"s another RA8875 bug or TFTM070 bug but this the fact since I can replicate the same thing in another TFTM070 display.

So I"ve tried another 74hc125 port in the SCLK pin of the display to buffer it and isolate from SD card and...magically works. https://github.com/sumotoy/RA8875/wi...er-SPI-devices

I can post in a couple of days a video of a real-time spectrum analyzer and simple audio player that shows 239 bands of 60 segments fully colored and really fast thanks to the layer capabilities of RA8875 (a really powerful feature ignored in the Adafruit library), there"s a lot of demos in the library included gauges and vu bars created by using layer feature. https://github.com/sumotoy/RA8875/wi...ard-and-RA8875

I will try tomorrow with Teensy LC, should work since RA8875 doen"t need extreme speed SPI and since this chip has hardware graphics,internal RAM, Font chip, it"s possible use a 128 Flash SPI (only if you program it first!), touchscreen and support a matrix keyboard as well it"s perfect for nice interactive graphic interface without consume all MCU resources.

TFTM070 display have to be prepared to use SPI (some jumper on the back and needs 3 resistors on standard display), this is needed only if you ordered the standard version. On the Buydisplay site you can order already prepared for SPI but in one case I"ve received an half prepared one that doesn"t have the 3 needed resistors so I had to add myself.

I"ve improved library a lot and get really into RA8875 reagisters, thanks Christopher that gived me the idea I"m able to break the 10Mhz SPI and rised to 14Mhz, over it"s possible but RA8875 doesn"t work realiable.

The Adafruit library uses SPI mode 0 but in RA8875 datasheet it"s clearly specified to use mode 3, also many functions needs SPI reading feedback that was missed on Adafruit (so why Paul added delay).

Chinese Character Type LCD Module LM3037 series TDN-08-0176(A4, PRODUCTCATALOG)-72 URL: www.topwaydisplay.com, www.topwaysz.com - 72 - OUTLINE DRAWING TERMINAL FUNCTIONS Pin Name Descriptions Parallel Mode (PSB=H) Serial Mode (PSB=L) 1 VSS 0V Power Supply, Ground 2 VDD Positive Power Supply 3 NC No Connection (keep open) 4 RS (CS) Register Select RS=H, data read/write RS=L, Instruction data write or Status busy flag read Chip Select CS=H, chip enable CS=L, chip disable 5 R/W(SID) Read Write Control R/W=H, data or status read R/W=L, data or status write Serial Input Data 6 E(SCLK) Enable Trigger Serial Clock 7 DB0 : : 14 DB7 Data bus Three state I/O terminal for display data or instruction Leave open or pull-up 15 BLA LED Backlight Positive Supply Power 16 NC No Connection (keep open) 17 PSB Interface Selection PSB=L, Serial Mode PSB=H, 4 or 8 bit Parallel Mode 18 /RST System Reset, low active DISPLAY CHARACTERISTICS Item Value LCD Display Mode– STN-Gray, Positive, Transmissive Viewing Angle 6:00 Driving Method 1/32 duty, 1/5 bias Backlight” White LED backlight BLOCK DIAGRAM MECHANICAL DATA Item Value Outline (mm) 80.8 x 35.0 x 12.5 MAX. Viewing Area (mm) 64.6 x 16.0 Active Area (mm) 60.44 x 13.4 Dot Pitch (mm) 0.42 x 0.42 Dot Size (mm) 0.38 x 0.38 ABSOLUTE MAXIMUM Item Symbol Min Max Operating Voltage (V) VDD -0.3 +5.5 Operating Temperature (°C) TOP -20 +70 Storage Temperature (°C) TST -30 +80 ELECTRICAL CHARACTERISTICS¦ Item Symbol Min Typ Max Operating Voltage (V) VDD 4.8 5.0 5.2 Input High Voltage (V) VIH 0.8VDD - VDD Input Low Voltage (V) VIL VSS - 0.4 Operating Current (mA) IDD - 1.7 5.0 BACKLIGHT CHARACTERISTICS Item Symbol Min Typ Max Forward Voltage (V) VfBLA - 5.0 - Forward Current (mA) IfBLA - 34 50 LM3037 series Highlight Major Models –LCD Mode ”Backlight Char ROM ¦Voltage LM3037A STN-Gray White LED GB 3.3 LM3037A-1 STN-Blue White LED GB 3.3 LM3037B-0C-1 STN-Blue White LED TCH, SCH, JP 5.0 LM3037BDWš STN-Gray White LED GB 5.0 LM3037BFW STN-Blue White LED GB 5.0 For similar product or (semi) custom made LCD module, please visit our web site or contact us. šThe above product information is based on this model. LCD Panel 144 x 32 pixels RS, R/W, E DB0 - DB7 BLA ST7921 or equivalent ST7920 or equivalent LED Backlight Circuit VDD VSS PSB, /RST

As shown in Figure 1, the OCM240128W-1 type colorized lcd display model compatible with the instruction of T6963 controller, include TFT-LCD module 1, TFT-LCD controller 2, master controller 3, FLASH memory module 4 and communication interface 5, described master controller 3 receives data message and the command information that communication interface 5 sends, wherein, data message comprises the image data of 16bit, character library delivery data, the configuration information of color screen terminal (comprises communication baud rate information, mode of operation information etc.), some data message of the calibration information of touch-screen and client, and with data information memory in FLASH memory module 4, send command information to TFT-LCD controller 2, the demonstration information after TFT-LCD controller 2 will be handled sends TFT-LCD module 1 to.Described TFT-LCD controller adopts the RA8875 control chip.

Described master controller 3 adopts 32 ARM7 processors, and model is the LPC213x of NXP, software top compatibility the T6963 instruction, provide and 8 bit data parallel ports of T6963 compatibility and control mouthful.Be responsible for sending the reception operation information to the customer instruction processing with to RA8875.

Described communication interface 5 provide with T6963 processor compatibility 8 parallel ports, the 16 bit data parallel ports that described RA8875 control chip carries are electrically connected with communication interface.Also be equipped with touch-screen 7, what specifically adopt is the four-wire resistance type contact panel.Built-in one group of 10 ADC of RA8875 control chip and control circuit are to connect the four-wire resistance type contact panel.Its whole touching control panel controller can be divided into " automatic mode " and " manual mode ", and every kind of pattern is divided into " hardware interrupts pattern " and " software polling pattern " again.In addition, described RA8875 control chip also is electrically connected with the four-wire resistance type contact panel, and described four-wire resistance type contact panel also is electrically connected with touch-screen control chip 8, and described communication interface also comprises the user interface that is electrically connected with the touch-screen control chip.

Also comprise backlight circuit module 6, described backlight circuit module adopts boost type DC-DC conversion chip RT9293, described master controller is controlled the Enable Pin that opens or closes DC-DC conversion chip RT9293 by the GPIO mouth, and described RA8875 control chip adopts pulse width modulation mode that the feedback input end (FB) of RT9293 is carried out backlight illumination control.Described FLASH memory module adopts serial FLASH memory W25Q128BV.

Described TFT-LCD module 2 refers to the digraph layer colorized lcd display model of literal and Graphics Mode, and described RA8875 control chip can be in conjunction with literal or 2D graphical application, and maximum can be supported the small-medium size digitizing tablet of 800*480 point resolution.In addition, the user can be by the interface of selecting external series FLASH storer W25Q128BV for use, supports the BIG5/GB coding, can provide up 32*32 pixel the font input.In the use of figure, the RA8875 control chip is supported the BTE engine (Block Transfer Engine) of 2D, and this function is compatible with general general 2D BTE function, can handle a large amount of graph data conversions and transmit.Also built-in geometric figure accelerating engine (Geometric Speed-up Engine) of RA8875 control chip simultaneously provides the user to see through simple setting easily draw straight line, rectangle, circle and oval geometric figure.RA8875 has integrated strong functions simultaneously, as functions such as picture rolling function, demonstration floating frame, figure Pattern and literal amplifications.

This intelligent color screen terminal also comprises the character library part: the part serial font ROM of the external series ROM interface compatibility Yu Jitong company (Genitop Inc) of described RA8875 control chip.The support production code member comprises: GT21L16TW/ GT21H16T1W, GT23L16U2W, GT23L24T3Y/ GT23H24T3Y, GT23L24M1Z and GT23L32S4W/ GT23H32S4W.At different products, can provide 16x16,24x24,32x32 font size and different word wide.

Principle of work: OCM240128W-1 type colorized lcd display model uses dual-core architecture (main control MCU LPC2312+TFT LCD drives chip RA8875), this new controller is to improve on T6963 controller instruction basis, has increased new command function.The pixel 480X272 of TFT-LCD module, the driving chip is RA8875.By converting with main control MCU control, four pixels are combined into a pixel, the pixel that the actual user of providing uses is the 240X128 dot matrix, and is the same with the pixel address of monochromatic screen OCM240128-1.Main control MCU LPC2312 has simulated hardware interface and the software sequential of T6963, and MCU handles after receiving the instruction that client sends by the parallel port by analysis, and operation RA8875 finishes corresponding operating, as the text display among the T6963, and graphic dot matrix demonstration etc.