ESP Terminal SPI 3.5-inch Display Arduino Tutorial

Overview¶

This tutorial introduces how to configure the Arduino programming environment and how to set up the board.

The tutorial examples include the lvgl demo example (When you first received it, the demo it demonstrated after you powered it up), and how to connect the esp terminal to some sensors/modules.

Development environment configuration¶

1.Please go to the official website https://www.arduino.cc/ to download the Arduino IDE, click the start icon: open as shown in the figure:

2.Download the libraries provided by Elecrow. Copy them to the library folder in the Arduino installation directory.

If you don't know the path of Arduino library directory, you can open Arduino IDE→Files→Preferences:

Add the ESP32 S3 URL as follows：

https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

The tool automatically downloads and updates the corresponding model, check the steps as shown in the figure:

Board settings¶

Set as shown

warn:

If the CH340G driver is not installed on your PC, please install the CH340G driver first, or switch the SWITCH switch to the USB position and connect it with a USB cable.

Download process¶

1.Connect the motherboard and computer through a USB to type-c data cable;

2.Click on the tool on the arduino software and select the corresponding serial port number;

Esp32spi 12.png

3.Click to open the serial port assistant, then click the boot button on the motherboard, and then press the reset button until the serial port assistant displays "waiting for download".

4.Click "upload" to upload the program to the ESP32 motherboard

Until the prompt upload is successful, as shown in the figure:

5.Press the "Reset" button and the code will run on the display.

LVGL Widgets Demo¶

After downloading the LVGL_SPI_test.INO code, restart the screen, and you can see various function module icons.

Esp32spi 31.png

Running result:

Connect With Crowtails¶

Hardware Preparation¶

ESP Terminal SPI	Crowtail-OLED	Crowtail-LED	Crowtail- Light Sensor	USB-A(or USB-C) to USB-C cable	*2 4-Pin HY2.0 Cables**
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Get one now	Get one now	Get one now	Get one now	Get one now	Get one now

Example 1 Display the screen color of the LCD
After the A-LCD.INO code is downloaded, the restart screen will be in a different color.

Esp32spi 16.png

Running result:

Example 2 Display pictures and read TF card pictures
After the A-TF-PIC.INO code is downloaded, the restart screen will display the picture screen.

Running result:

Example 3 touch function display
After the A-TOUCH.INO code is downloaded, the restart screen will automatically display the XY coordinates of the touch, and the corresponding X Y values will be displayed when touching different positions

Esp32spi 20.png

Running result:

Esp32spi 21.png

Example 4 camera function display
After downloading the A-Camera.INO code, restart the screen and enter the camera screen.

Esp32spi 22.png

Running result:

Example 5 connect GPIO port, I2C port, UART port
After downloading the A-A_D_PORT.INO code, restart the screen, automatically light up the LED on the GPIO port, and read the analog value from the analog port.

Esp32spi 24.png