• Open the Raspberry Pi terminal and enter the following command to enter the configuration interface:
  

sudo raspi-config

• Select Interface Options -> SPI -> Yes to enable the SPI interface

• Continue to enter the config interface:
  

sudo raspi-config

• Select Interface Options -> I2C -> Yes to enable the I2C interface

• Restart Raspberry Pi
  

sudo reboot

• Check /boot/config.txt, you can see "dtparam=i2c_arm=on" and "dtparam=spi=on" are written
  

more  /boot/config.txt

• To ensure that SPI is not occupied, it is recommended that other driver overlays be temporarily turned off. You can use ls /dev/spi* to check the SPI occupancy. The terminal output /dev/spidev0.0 and /dev/spidev0.1 indicates that the SPI situation is normal

ls /dev/spi* 

Install Libraries Files

• Install libraries

sudo apt-get update
sudo apt-get install python3-pip
sudo apt-get install python3-pil
sudo apt-get install python3-numpy
sudo apt-get install python3-spidev

Demo Operations

• Download the demo

cd
wget https://files.waveshare.com/wiki/1.9inch_Touch_LCD/1.9inch_Touch_LCD_Pi.zip

• Install decompression environment (optional, skip this step if you have used the command to unzip)

sudo apt-get install unzip

• Enter the file location, and execute the command to unzip
  

unzip 1.9inch_Touch_LCD_Pi.zip -d ./1.9inch_Touch_LCD

• Enter Python file folder

cd 1.9inch_Touch_LCD/Python

• Run the example demo will display 3 images on the screen, and it will then enter the drawing function upon completion

sudo python 1.9inch_Touch_LCD.py 

Install Libraries Files

• Install libraries

git clone https://github.com/WiringPi/WiringPi
cd WiringPi
./build
gpio -v

• Run gpio -v and corresponding version will appear. If it does not appear, there is an installation error.
• Download the demo file
• Enter the file directory, and run the demo

Demo Operations

• Download the demo

cd
wget https://files.waveshare.com/wiki/1.9inch_Touch_LCD/1.9inch_Touch_LCD_Pi.zip

• Install decompression environment (optional, skip this step if you have used the command to unzip)

sudo apt-get install unzip

• Enter the file location, and execute the command to unzip
  

unzip 1.9inch_Touch_LCD_Pi.zip -d ./1.9inch_Touch_LCD

• Enter C file folder

cd 1.9inch_Touch_LCD/C

• Clean compilation files and compile again

sudo make clean
sudo make -j

• Successfully compiled, run the example demo to perform RGB refresh on the screen, and it will then enter the drawing function upon completion

sudo ./main

• Download the Demo

• Unzip the demo and open Thonny

• Open the demo, the path is: 1.9inch_Touch_LCD_Pico/Python/1.9inch_Touch_LCD.py

• Run the demo to achieve the drawing board function on the screen

• If you want to run the demo automatically at power-on, change the file name to main.py

Download and Install Arduino IDE

• Click to visit the Arduino official website, select the corresponding system and system bit to download
  
  
• Run the installer and install all by default

Install Arduino-ESP32

• To use ESP32-related motherboards in Arduino IDE, you must first install the Arduino-ESP32 Board library
• In some areas, it may not be able to Install online due to network factors, and Install offline is generally recommended
• To install the Arduino-ESP32 tutorial, please refer to Arduino board manager tutorial

Install Library

• When installing Arduino libraries, there are usually two ways to choose from: Install online and Install offline.
  For most libraries, users can easily search and install them through the online library manager of the Arduino software. However, some open-source libraries or custom libraries are not synchronized to the Arduino Library Manager, so they cannot be acquired through online searches. In this case, users can only manually install these libraries offline.
• For library installation tutorial, please refer to Arduino library manager tutorial

Run the First Arduino Demo

• Click to visit Run the First Arduino Demo

Demo

• Download the Demo and unzip it

LVGL_Arduino_v8

lv_demo_widgets();
// lv_demo_benchmark();
// lv_demo_keypad_encoder();
// lv_demo_music();
// lv_demo_stress();

Environment Setup

• Click to visit IDF Environment Setup

Demo

• Download the Demo and unzip it

lvgl_exampla

    I2c_bus_init();         // Initialize I2C
    spi_bus_init();         // Initialize SPI
    display_init();          // Initialize display screen
    touch_init();           // Initialize touchscreen driver
    brightness_init();       // Initialize backlight control module
    brightness_set_level(20); // Set the backlight brightness to 20% (support 0-100 level adjustment)
    lv_port_init(); // Initialize LVGL
    if (lvgl_lock(-1)) // Obtain LVGL thread lock (-1 indicates blocking wait) to ensure multi-threaded safety
    {
        // lv_demo_benchmark();
        // lv_demo_music();
        lv_demo_widgets();  // Start LVGL demo
        lvgl_unlock();  // Release LVGL thread lock
    }

• When installing Arduino libraries, there are usually two ways to choose from: Install online and Install offline.
  For most libraries, users can easily search and install them through the online library manager of the Arduino software. However, some open-source libraries or custom libraries are not synchronized to the Arduino Library Manager, so they cannot be acquired through online searches. In this case, users can only manually install these libraries offline.
• For library installation tutorial, please refer to Arduino library manager tutorial

• Download the Demo and unzip it
• Enter the sample demo file 1.9inch_Touch_LCD_Arduino/examplas/1.9inch_Touch_LCD.ino, double click on 1.9inch_Touch_LCD.ino to open the demo

• Select the device and the port, compile and flash the demo

• Successfully flashed, and enter the drawing board function