WalkerWiki - wiki.alanwalker.uk

User Tools

Site Tools

Trace:
2.5_spi_lcd_display

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Last revisionBoth sides next revision
2.5_spi_lcd_display [2016/08/08 20:28] – walkeradmin2.5_spi_lcd_display [2017/11/10 21:26] – walkeradmin
Line 1: Line 1:
-====== 2.5" SPI LCD Display ======+====== 3.5" SPI LCD Display ======
 \\  \\ 
 \\  \\ 
Line 13: Line 13:
 The main reason I bought this display was that the header only uses 12 pins, and leaves access to the remaining header pins. The drivers are available online, although they are a bit fiddly, mainly its easy to lose the display if you do an apt-upgrade. However, once a stand alone project is complete, it is unlikely that you will update it (why would you if it still works?) The main reason I bought this display was that the header only uses 12 pins, and leaves access to the remaining header pins. The drivers are available online, although they are a bit fiddly, mainly its easy to lose the display if you do an apt-upgrade. However, once a stand alone project is complete, it is unlikely that you will update it (why would you if it still works?)
 \\  \\ 
 +Follow these steps to install the LCD (assuming you have the same model)
 \\  \\ 
 +\\ 
 +Here is the model of LCD I am using:
 +\\ 
 +{{:pi_lcd_02.jpg?200|}}
 +\\ 
 +    1. Download the library:
 +        The most up to date driver will be here:
 +        
 +        https://drive.google.com/folderview?id=0B0DYHppEJ9cHbnRzSk9oUVAyMkk&usp=sharing
 +        
 +Or you can use: {{ :i2c_lcd.zip |}} from here, this worked with Raspbian Jesse.
 +\\ 
 +    2. Unzip the files: tar -xzvf LCD_show_v6_0_2.tar.gz
 +    
 +    3. Change the the new directory: cd LCD_show_v6_0_2
 +    
 +    4. Update System: sudo apt-get update
 +    
 +    5. Install Driver: sudo ./LCD35_v (Pi will auto reboot)
 +    
 +    6. If you want to use HDMI then: sudo ./LCD_hdmi
 +    
 +    7. Run this before Pi Update: sudo apt-mark hold raspberrypi-bootloader  
 +    
 +    8. sudo apt-get update
 +    
 +    9. sudo apt-get upgrade
 +\\ 
 +==== Note ====
 +\\ 
 +Everytime I update the system with sudo apt-get upgrade, my LCD stops working and I have to do steps 2-6 again (actually, I don't do step 6 because I have nothing on the HDMI port)
 +\\ 
 +\\ 
 +Now you should have a working LCD
 +\\ 
 +\\ 
 +{{:pi_lcd_03.jpg?200|}}{{:pi_lcd_04.jpg?200|}}
 +\\ 
 +\\ 
 +\\ 
 +===== LCD Specs =====
 +    TFT features:
 +     1.LCD Type              : TFT Transmissive  ---
 +     2.interface             : spi(32MHZ)
 +     3.Number of Dots        : 320*(RGB)*480  Dots
 +     4.size                  : 86.0*56.2mm
 +     5.Approx. Weight        : TBD  g
 +     6.Back Light            : 6 White LED
 +     7.Touch chip            : xpt2046
 +    
 +    PIN_NO      SYMBOL        DESCRIPTION
 +     1           3.3v          power output 3.3v
 +     2,4         5v            power output  5v
 +     3           NC            no connect
 +     19          SPI_MISO      SPI Bus Master Input/Slave Output
 +     20,25       GND           Ground
 +     21          SPI_MOSI      SPI Bus Master Output/Slave Input
 +     22          TP_IRQ        The interruption of touch screem,Low  active
 +     23          SPI_CLK       SPI Bus clock
 +     24          TP_CS         The chip selection  for touch  screem,low  active
 +     26          LCD_CS        The chip selection  for LCD  screem,low active
 +\\ 
 +\\ 
 +
2.5_spi_lcd_display.txt · Last modified: 2023/03/09 22:35 by 127.0.0.1