ESP32-S3-Touch-LCD-2.8B

ESP32-S3-Touch-LCD-2.8B 2.8inch, 480×640, I2C/RGB

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Onboard Interfaces RGB I2C

Related Products

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Overview

Introduction

ESP32-S3-Touch-LCD-2.8B is a microcontroller development board that supports 2.4GHz Wi-Fi and BT BLE 5. It integrates large capacity Flash and PSRAM and has onboard 2.8inch capacitive touch screen, can smoothly run GUI programs such as LVGL. Combined with various peripheral interfaces, it is suitable for the quick development of the HMI and other ESP32-S3 applications.

Features

• Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (BLE), with onboard antenna
• Built in 512KB SRAM, 384KB ROM, 8MB PSRAM, and 16MB Flash
• Onboard 2.8inch capacitive touch screen with 480×480 resolution
• Supports touch control via I2C interface, with interrupt support
• Adapting UART, I2C and some IO interfaces, integrates full-speed USB port
• Onboard QMI8658 6-axis sensor, RTC clock sensor, TF card slot and battery charging management module, etc.
• Supports accurate control such as flexible clock and multiple power modes to realize low power consumption in different scenarios

Specifications

Item	Parameter
Interface	USB Type-C / UART Type-C
Controller chip	ESP32-S3
LCD type	TFT
LCD controller chip	Display: ST7701
	Touch: GT911
Onboard devices	Attitude sensor: QMI8658
	RTC clock: PCF85063
	TF
	Buzzer
	Battery recharging manager module
Dimensions	47.9 mm * 66.7 mm (Without touch control) 52.9 mm * 71.3 mm (With touch control)

LCD Screen Parameters

Onboard Resources

1. ESP32-S3R8    Dual-core processor, up to 240MHz operating frequency 2. 16MB Flash 3. QST attitude sensor    QMI8658 (six-axis gyro accelerometer) 4. SMD antenna 5. TCA9554PWR    GPIO expansion chip, fully used, not led out 6. RTC clock chip    PCF85063 RTC clock 7. MP1605GTF-Z    Power module with current 2A (MAX) 8. Battery recharge manager Chip 9. Buzzer 10. TF card slot (back) 11. BOOT button

12. RESET button 13. IPEX Gen 1 connector    Switches to use external antenna via resoldering the resistor 14. 2*12PIN 2.54mm header 15. RTC battery header    Connecting the rechargeable RTC battery 16. Battery header    MX1.25 2PIN connector, for 3.7V Lithium battery, supports charging and discharging 17. UART interface 18. Charge indicator 19. USB Type-C interface    Used for power supply, program download and debugging 20. Power indicator 21. I2C interface    Connecting with internal chip, only supports the I2C peripherals and cannot be mapped to other functions 22. Battery power supply control button

Interfaces

• 12*2PIN 2.54mm header

Description	Function	Pin	Pin	Function	Description
Ground	GND	G	G	GND	Ground
External output 3.3V	3V3	3V3	3V3	3V3	External output 3.3V
I2C data pin, cannot be used as regular GPIO	SDA (GPIO15)	SDA	TXD	TXD (GPIO43)	UART transmit data or as regular GPIO
I2C clock pin, cannot be used as regular GPIO	SCL (GPIO7)	SCL	RXD	RXD (GPIO44)	UART receive data or as regular GPIO
Used for touch interrupt, solderable corresponding resistor	GPIO16	16	37	GPIO37	Used for internal PSRAM, not recommended
Used for reading battery voltage, solderable corresponding resistor	GPIO4	4	36	GPIO36	Used for internal PSRAM, not recommended
Connected to BOOT button, can be used as a regular GPIO	GPIO0	0	35	GPIO35	Used for internal PSRAM, not recommended
USB differential cable or as GPIO	USB differential cable (GPIO20)	D+	34	GPIO34	Used for internal PSRAM, not recommended
USB differential cable or as GPIO	USB differential cable (GPIO19)	D-	33	GPIO33	Used for internal PSRAM, not recommended
Ground	GND	G	G	GND	Ground
Voltage output of USB through diode	5V	VCC	BAT	BAT	Battery voltage
Direct output of USB voltage	5V	5V	5V	5V	Direct output of USB voltage

• UART interface

Pin	Function	Description
GND	GND	Ground
3V3	3V3	External output 3.3V
TXD	TXD (GPIO43)	UART transmit data or as regular GPIO
RXD	RXD (GPIO44)	UART receive data or as regular GPIO

• I2C interface

Pin	Function	Description
GND	GND	Ground
3V3	3V3	External output 3.3V
SCL	SCL (GPIO7)	I2C clock pin, cannot be used as regular GPIO
SDA	SDA (GPIO15)	I2C data pin, cannot be used as regular GPIO

Dimensions

Without Touch Control

With Touch Control

Internal Hardware Connection

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LCD

LCD Pin	ESP32S3
LCD_BL	GPIO6
LCD_RST	EXIO1
LCD_SDA	GPIO1
LCD_SCL	GPIO2
LCD_CS	EXIO3
PCLK	GPIO41
DE	GPIO40
VSYNC	GPIO39
HSYNC	GPIO38
B0	NC
B1	GPIO5
B2	GPIO45
B3	GPIO48
B4	GPIO47
B5	GPIO21
G0	GPIO14
G1	GPIO13
G2	GPIO12
G3	GPIO11
G4	GPIO10
G5	GPIO9
R0	NC
R1	GPIO46
R2	GPIO3
R3	GPIO8
R4	GPIO18
R5	GPIO17
TP_SDA	GPIO15
TP_SCL	GPIO7
TP_INT	GPIO16
TP_RST	EXIO2

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TF Card

TF Card	ESP32S3
SD_D0 / MISO	GPIO42
SD_CMD / MOSI	GPIO1
SD_SCK / SCLK	GPIO2
SD_D3 / CS	EXIO4
SD_D1	NC
SD_D2	NC

Expand

QMI

QMI8658	ESP32S3
IMU_SCL	GPIO7
IMU_SDA	GPIO15
IMU_INT1	EXIO5
IMU_INT2	EXIO6

Expand

RTC

PCF85063ATL	ESP32S3
RTC_SCL	GPIO7
RTC_SDA	GPIO15
RTC_INT	EXIO7

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Buzzer

Buzzer	ESP32S3
Buzzer_Control	EXIO8

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BAT

BAT	ESP32S3
BAT_ADC	GPIO4

Version Description

This development board includes both touch and non touch versions. Please click on the corresponding product to view the usage instructions.

ESP32-S3-LCD-2.8B Without Touch Control	ESP32-S3-Touch-LCD-2.8B With Touch Control

Usage Instructions

ESP32-S3-Touch-LCD-2.8B currently provides two development tools and frameworks, Arduino IDE and ESP-IDF, providing flexible development options, you can choose the right development tool according to your project needs and personal habits.

Development Tools

	Arduino IDE Arduino IDE is an open source electronic prototyping platform, convenient and flexible, easy to get started. After a simple learning, you can start to develop quickly. At the same time, Arduino has a large global user community, providing an abundance of open source code, project examples and tutorials, as well as rich library resources, encapsulating complex functions, allowing developers to quickly implement various functions.
	ESP-IDF ESP-IDF, or full name Espressif IDE, is a professional development framework introduced by Espressif Technology for the ESP series chips. It is developed using the C language, including a compiler, debugger, and flashing tool, etc., and can be developed via the command lines or through an integrated development environment (such as Visual Studio Code with the Espressif IDF plugin). The plugin offers features such as code navigation, project management, and debugging, etc..

Each of these two development approaches has its own advantages, and developers can choose according to their needs and skill levels. Arduino are suitable for beginners and non-professionals because they are easy to learn and quick to get started. ESP-IDF is a better choice for developers with a professional background or high performance requirements, as it provides more advanced development tools and greater control capabilities for the development of complex projects.

Components Preparation

• ESP32-S3-Touch-LCD-2.8B x1
• TF card x 1
• USB cable (Type-A to Type-C) x 1

Before operating, it is recommended to browse the table of contents to quickly understand the document structure. For smooth operation, please read the FAQ carefully to understand possible problems in advance. All resources in the document are provided with hyperlinks for easy download.

Working with Arduino

This chapter introduces setting up the Arduino environment, including the Arduino IDE, management of ESP32 boards, installation of related libraries, program compilation and downloading, as well as testing demos. It aims to help users master the development board and facilitate secondary development.

Environment Setup

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

The environment setup is carried out on the Windows 10 system, Linux and Mac users can access Arduino-esp32 environment setup for reference. (To use on Mac, you need to install the MAC driver.)

Install ESP32 Development Board

• Must first install the development board esp32-XIP-3.0.2.
• Only supports Install Offline.
• For installation tutorials, please refer to esp32-XIP-3.0.2 Development board installation.

• ESP32-S3-Touch-LCD-2.8B required development board installation description

Board name	Board installation requirement	Instruction
esp32-XIP-3.0.2	"Install Offline"	The "esp32-XIP-3.0.2" board must be installed according to the installation tutorial

Install Library

• When installing Arduino libraries, there are usually two ways to choose from: Install online and Install offline. If the library installation requires offline installation, you must use the provided library file
  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

• ESP32-S3-Touch-LCD-2.8B library file path:

  ..\ESP32-S3-Touch-LCD-2.8B-Demo\Arduino\libraries

• ESP32-S3-Touch-LCD-2.8B Library file installation instructions

Library Name	Description	Version	Library Installation Requirement
LVGL	Graphical library	v8.3.10	"Install Offline"

For more learning and use of LVGL, please refer to LVGL official documentation

Run the First Arduino Demo

Expand

If you are just getting started with ESP32 and Arduino, and you don't know how to create, compile, flash, and run Arduino ESP32 programs, then please expand and take a look. Hope it can help you!

New Project

• Run the Arduino IDE and select File -> New Sketch
  
• Enter the code:

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("Hello, World!");
  delay(2000);
}

• Save the project and select File -> Save As.... In the pop-up menu, select the path to save the project, and enter a project name, such as Hello_World, click Save

Compile and Flash Demos

• Select the corresponding development board, take the ESP32S3 motherboard as an example:
  

①. Click to select the dropdown menu option Select Other Board and Port;
②. Search for the required development board model esp32s3 dev module and select;
③. Select COM Port;
④. Save the selection.

• Some development boards with specified version numbers support direct model selection, for example, "Waveshare ESP32-S3-LCD-1.69":
  

• If the ESP32S3 mainboard only has a USB port, you need to enable USB CDC, as shown in the following diagram:
  

• Compile and upload the program:
  

①. Compile the program; ②. Compile and download the program; ③. Download successful.

• Open the Serial Monitor window, and the demo will print "Hello World!" every 2 seconds, and the operation is as follows:
  

Demo

• ESP32-S3-Touch-LCD-2.8B demo

Demo	Basic Description	Dependency Library
LVGL_Arduino	Test onboard device functionality	LVGL

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LVGL_Arduino

Hardware connection

---

• Insert the TF card into the development board (can be used without a TF card)
• Connect the development board to the computer

Code analysis

---

• Driver_Init ()
  • Initializes multiple hardware components, including flash testing, battery initialization, I2C bus initialization, chip-specific initialization, external IO settings, backlight initialization, real-time clock initialization, and gyroscope initialization, etc., to prepare the hardware for the normal operation of the system
• Driver_Loop ()
  • As a continuous task, it constantly cycles to handle the gyroscope and real-time clock operations, and retrieves the battery voltage. Loops are executed every 100 milliseconds to avoid overusing CPU resources
• setup ()
  • The setup function for Arduino, performing a series of initialization operations. It includes wireless module testing, hardware initialization, LCD initialization, TF card initialization, LVGL initialization, invoking LVGL's example functions, and creating a task to perform a hardware loop operation
• loop()
  • The main loop function of Arduino, primarily calls the LVGL loop processing function, and introduces a 5 millisecond delay to ensure that the system's graphical interface can continuously update

Demo flashing

---

• Select the Waveshare ESP32S3 XIP model and port
  

• Set development board parameters
  

• Flash the demo

Result demonstration

---

• LCD screen display
  

• Parameter description

Parameter	Function	Description
SD Card	Display TF card size	Connect the TF card, if the recognition fails, please format the TF card to FAT32 format (please wait for a while to reset and check again if the recognition fails for the first time)
Flash Size	Display Flash size	Current onboard 16MB Flash
Battery Voltage	Battery voltage	The battery voltage can be detected when the battery is connected
Angular deflection	Display the angular deflection of the board	Display the offset in three directions
RTC Time	Display RTC time	Display current RTC time If the RTC time is not consistent with the current time, because the data cannot be retained in the power-off state, if you need to keep the RTC time normal, you need to connect the RTC battery and update the RTC time
Wireless scan	Display the number of scanned WiFi	When it finishes, display Scan Finish at the end
The buzzer test	Buzzer control page	Can control buzzer switch
Backlight brightness	Brightness adjustment slider	Can control screen brightness

Working with ESP-IDF

This chapter introduces setting up the ESP-IDF environment setup, including the installation of Visual Studio and the Espressif IDF plugin, program compilation, downloading, and testing of demos, to assist users in mastering the development board and facilitating secondary development.

Environment Setup

Download and Install Visual Studio

• Open the download page of VScode official website, choose the corresponding system and system bit to download
  
• After running the installation package, the rest can be installed by default, but here for the subsequent experience, it is recommended to check boxes 1, 2, and 3
  
  • After the first two items are enabled, you can open VSCode directly by right-clicking files or directories, which can improve the subsequent user experience.
  • After the third item is enabled, you can select VSCode directly when you choose how to open it.

The environment setup is carried out on the Windows 10 system, Linux and Mac users can access ESP-IDF environment setup for reference

Install Espressif IDF Plugin

• It is generally recommended to use Install Online. If online installation fails due to network factor, use Install OIffline
• For more information about how to install the Espressif IDF plugin, see Install Espressif IDF Plugin

• ESP32-S3-Touch-LCD-2.8B required Espressif IDF version description

Plugin name	Plugin installation requirement	Version number requirement
Espressif IDF	"Install Offline" / "Install Online"	≥5.3.1

Run the First ESP-IDF Demo

Expand

If you are just getting started with ESP32 and ESP-IDF, and you don't know how to create, compile, flash, and run ESP-IDF ESP32 programs, then please expand and take a look. Hope it can help you!

New Project

Create Demo

• Using the shortcut F1, enter esp-idf:show examples projects
  

• Select your current IDF version
  

• Take the Hello world demo as an example

①Select the corresponding demo
②Its readme will state what chip the demo applies to (how to use the demo and the file structure are described below, omitted here)
③Click to create the demo

• Select the path to save the demo, and require that the demos cannot use folders with the same name
  

Modify COM Port

• The corresponding COM ports are shown here, click to modify them
  
• Please select the COM ports according to your device (You can view it from the device manager)
  
• In case of a download failure, please press the Reset button for more than 1 second or enter download mode, and wait for the PC to recognize the device again before downloading once more
  

Modify Driver Object

• Select the object we need to drive, which is our main chip ESP32S3
  

• Choose the path to openocd, it doesn't affect us here, so let's just choose one
  

Other Status Bar Functions

①.ESP-IDF Development Environment Version Manager, when our project requires differentiation of development environment versions, it can be managed by installing different versions of ESP-IDF. When the project uses a specific version, it can be switched to by utilizing it
②.Device flashing COM port, select to flash the compiled program into the chip
③.Select set-target chip model, select the corresponding chip model, for example, ESP32-P4-NANO needs to choose esp32p4 as the target chip
④.menuconfig, click it to Modify sdkconfig configuration file Project configuration details
⑤.fullclean button, when the project compilation error or other operations pollute the compiled content, you can clean up all the compiled content by clicking it
⑥.Build project, when a project satisfies the build, click this button to compile
⑦.Current download mode, the default is UART
⑧.flash button, when a project build is completed, select the COM port of the corresponding development board, and click this button to flash the compiled firmware to the chip
⑨.monitor enable flashing port monitoring, when a project passes through Build --> Flash, click this button to view the log of output from flashing port and debugging port, so as to observe whether the application works normally
⑩.Debug
⑪.Build Flash Monitor one-click button, which is used to continuously execute Build --> Flash --> Monitor, often referred to as "little flame"

Compile, Flash and Serial Port Monitor

• Click on the all-in-one button we described before to compile, flash and open the serial port monitor
  

• It may take a long time to compile especially for the first time
  

• During this process, the ESP-IDF may take up a lot of CPU resources, so it may cause the system to lag
  
• If it is the first time to flash the program for a new project, you will need to select the download method, and select UART
  

• This can also be changed later in the Download methods section (click on it to pop up the options)
  

• As it comes with the onboard automatic download circuit, it can be downloaded automatically without manual operation
• After successful download, it will automatically enter the serial monitor, you can see the chip output the corresponding information and be prompted to restart after 10S
  

Use the IDF Demos

The following takes ESP32-S3-LCD-1.47-Demo as an example to introduce the two opening methods of the project and the general steps of use, and the detailed explanation of the ESP-IDF project. If you use other projects, the operation steps can be applied similarly.

Open In the Software

• Open VScode software and select the folder to open the demo
  

• Select the provided ESP-IDF example and click to select the file (located in the /Demo/ESP-IDF path under demo)
  

Open from Outside the Software

• Select the project directory correctly and open the project, otherwise it will affect the compilation and flashing of subsequent programs
  

• After connecting the device, select the COM port and model, click below to compile and flash to achieve program control
  

ESP-IDF Project Details

• Component: The components in ESP-IDF are the basic modules for building applications, each component is usually a relatively independent code base or library, which can implement specific functions or services, and can be reused by applications or other components, similar to the definition of libraries in Python development.
  • Component reference: The import of libraries in the Python development environment only requires to "import library name or path", while ESP-IDF is based on the C language, and the importing of libraries is configured and defined through CMakeLists.txt.
  • The purpose of CmakeLists.txt: When compiling ESP-IDF, the build tool CMake first reads the content of the top-level CMakeLists.txt in the project directory to read the build rules and identify the content to be compiled. When the required components and demos are imported into the CMakeLists.txt, the compilation tool CMake will import each content that needs to be compiled according to the index. The compilation process is as follows:

Demo

• ESP32-S3-Touch-LCD-2.8B demo

Demo	Basic Description
ESP32-S3-Touch-LCD-2.8B-Test	Test onboard device functionality

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ESP32-S3-Touch-LCD-2.8B-Test

Hardware connection

---

• Insert the TF card into the development board (can be used without a TF card)
• Connect the development board to the computer

Code analysis

---

• Driver_Init ()
  • This function performs hardware initialization and creates a task. It initializes the flash memory (possibly for checking or preparation), the battery, the I2C bus, the real-time clock, the gyroscope, and external IO. Then create a task Driver_Loop that continuously processes the gyroscope, the real-time clock, and gets the battery voltage, executing a loop operation every 100 milliseconds.
• Driver_Loop()
  • As a continuous task, it cycles through the gyroscope and real-time clock operations, and retrieves the battery voltage. In this way, the status of these hardware devices is continuously updated.
• app_main (): Drives the onboard device
  • This is the main entry function of the program. First initialize the wireless module, and then call Driver_Init for hardware initialization. Next, initialize the LCD display, touch input, TF card, and LVGL graphics library in sequence. Calling the example function Lvgl_Example1 of LVGL demonstrates specific graphical interface effects. In the main loop, it delays once every 10 milliseconds and calls lv_timer_handler to handle LVGL's timer events, ensuring the normal operation and updates of the graphical interface.

Result demonstration

---

• LCD screen display
  

• Parameter description

Parameter	Function	Description
SD Card	Display TF card size	Connect the TF card, if the recognition fails, please format the TF card to FAT32 format (please wait for a while to reset and check again if the recognition fails for the first time)
Flash Size	Display Flash size	Current onboard 16MB Flash
Battery Voltage	Battery voltage	The battery voltage can be detected when the battery is connected
Angular deflection	Display the angular deflection of the board	Display the offset in three directions
RTC Time	Display RTC time	Display current RTC time If the RTC time is not consistent with the current time, because the data cannot be retained in the power-off state, if you need to keep the RTC time normal, you need to connect the RTC battery and update the RTC time
Wireless scan	Display the number of scanned WiFi	When it finishes, display Scan Finish at the end
The buzzer test	Buzzer control page	Can control buzzer switch
Backlight brightness	Brightness adjustment slider	Can control screen brightness

Flash Firmware Flashing and Erasing

---

• The current demo provides test firmware, which can be used to test whether the onboard device functions properly by directly flashing the test firmware
• Binary file path:

  ...\ESP32-S3-Touch-LCD-2.8B-Demo\Firmware\bin

Flash firmware flashing and erasing for reference

Resources

Schematic Diagram

• ESP32-S3-Touch-LCD-2.8B Schematic diagram

Demo

• ESP32-S3-Touch-LCD-2.8B Demo

Project Diagram

• ESP32-S3-Touch-LCD-2.8B 2D drawing

Driver

• CH343P Window VCP driver
• MAC driver

Datasheets

ESP32-S3

• ESP32-S3 Technical Reference Manual
• ESP32-S3 Series Datasheet

Display

• GT911 Datasheet
• ST7701S Datasheet

Other Components

• QMI8658 Datasheet
• PCF85063A Datasheet
• TCA9554 Datasheet

Software Tools

Arduino

• Arduino IDE Official download link
• ESP32-Arduino official documentation
• Arduino-ESP32 offline component package

VScode

• VScode official website

Firmware Flashing Tool

• ESP32 Firmware flashing tool

Other Resource Links

• ESP32-Arduino official documentation
• LVGL official documentation

FAQ

Question: After the module downloads the demo and re-downloads it, why sometimes it can't connect to the serial port or the flashing fails?

 Answer:

• Click the Reset button for more than 1 second, wait for the PC to re-recognize the device and then download again
  
• Long press the BOOT button, press RESET at the same time, then release RESET, then release the BOOT button, at this time the module can enter the download mode, which can solve most of the problems that can not be downloaded.

Question: Why does the module keep resetting and flicker when viewed the recognition status from the device manager?

 Answer:

It may be due to Flash blank and the USB port is not stable, you can long-press the BOOT button, press RESET at the same time, and then release RESET, and then release the BOOT button, at this time the module can enter the download mode to flash the firmware (demo) to solve the situation.

Question: How to deal with the first compilation of the program being extremely slow?

 Answer:

• It's normal for the first compilation to be slow, just be patient
  

Question: What should I do if I can't find the AppData folder?

 Answer:

• Some AppData folders are hidden by default and can be set to show.
• English system: Explorer->View->Check "Hidden items"
• Chinese system: File Explorer -> View -> Display -> Check "Hidden Items"
  

Question: How do I check the COM port I use?

 Answer:

• Windows system:

①View through Device Manager: Press the Windows + R keys to open the "Run" dialog box; input devmgmt.msc and press Enter to open the Device Manager; expand the "Ports (COM and LPT)" section, where all COM ports and their current statuses will be listed.
②Use the command prompt to view: Open the Command Prompt (CMD), enter the "mode" command, which will display status information for all COM ports.
③Check hardware connections: If you have already connected external devices to the COM port, the device usually occupies a port number, which can be determined by checking the connected hardware.

• Linux system:

①Use the dmesg command to view: Open the terminal.
①Use the ls command to view: Enter ls /dev/ttyS* or ls /dev/ttyUSB* to list all serial port devices.
③Use the setserial command to view: Enter setserial -g /dev/ttyS* to view the configuration information of all serial port devices.

Question: Why does ESP-IDF report this error?

 Answer:

• This situation is that the TF card is not installed or the TF card cannot be recognized. If this situation occurs, please wait for a period of time to reset the device. If it still cannot be resolved, please format the TF card to FAT32 format. If it still fails, please try a different TF card
  

Question: Why does the program flashing fail when using a MAC device?

 Answer:

• Install MAC Driver and flash again.

Question: Why is there no output after successfully flashing the code with no issues?

 Answer:

• Check the schematic diagram for different development boards with Type-C interfaces, and handle the output accordingly:
  • For development boards with direct USB output, printf function is supported for printing output. If you want to support output via the Serial function, you will need to enable the USB CDC On Boot feature or declare HWCDC.
  • For development boards with UART to USB conversion, both printf and Serial functions are supported for printing output, and there is no need to enable USB CDC On Boot.

Question: RGB screen issues

 Answer:

• The screen supports 262k color, but due to ESP limitations, RGB565 is used, and it is actually 65k

Question: How to use SquareLine Studio to design interfaces?

 Answer:

• Please refer to SquareLine Studio tutorial

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