Portable ESP32 S3 High Performance 240MHz Development Board 240x320 2.8-inch Capacitive Touch Screen with Speaker

Portable ESP32 S3 High Performance 240MHz Development Board 240x320 2.8-inch Capacitive Touch Screen with Speaker

Wiki Details:
- https://www.lcdwiki.com/zh/2.8inch_ESP32-S3_Display

Features:
- Comes with ESP32-S3, powerful performance, easy development, and abundant development resources.
- Support for Little Wisdom Voice Assistant (optional function).
- 2.8-inch color screen, 240x320 resolution, maximum support for 262K colors (RGB666), rich display colors.
- Rich interfaces, convenient for connecting various peripherals (such as IIC, UART, etc.).
- Support external speakers, built-in microphone, can play and receive audio (optional function).
- Comes with RGB three color indicator lights, providing rich indication status.
- Equipped with a capacitive touch screen (optional), convenient for human-computer interaction.
- Standard TYPE-C interface, convenient for program download and power supply.
- With a micro TF card slot for easy expansion of storage.
- Supports external lithium batteries, lightweight and portable.
- Equipped with a battery charging management circuit to ensure safe charging and discharging of the battery.
- Provide rich example programs for easy learning.
- Provide technical support for underlying drivers and update WIKI materials online.
- Module aging testing with multiple detections up to military grade standards, supporting long-term stable operation.

Support for Little Wisdom Voice Assistant:
- Support for multi model switching: The ESP32S3 series development board adopts an open software architecture, equipped with fully open source materials, seamlessly compatible with the AI open source ecosystem, and deeply adapted to the open source large model, making it easy to call the model capability to develop voice interaction and other scenarios. It supports users to independently choose third-party servers to deploy back-end services, and the technology stack is open and controllable without supplier binding risks. There are multiple templates to choose from, multiple tones to choose from, support character customization, and four major models (Qwen3 real-time, Deepseek V3, Doubao AI 1.5Pro, Kimi-K2) to choose from.
- Disclaimer: Little Wisdom AI only provides development toolchain and technical documentation support. When users access large models for Deepseek and Alibaba Qwen, they are solely responsible for model training, data compliance, and third-party server operation and maintenance.
- Providing rich multilingual support.
- Intelligent reply to answer various questions.
- For LVGL GUI Development: For LVGL is the most popular free and open-source embedded graphics library for creating beautiful user interfaces for mainstream MCUs, MPUs, and display types. It provides everything needed to create GUI with easy-to-use graphic elements, exquisite visual effects, and lightweight low memory usage.
- Support multiple development environments: for Arduino IDE, Micro Python, Scratch 3.0, Espressif lDF, PlatformIO, etc.
- HMI Human Machine Interface Development: Human machine interface (also known as user interface or user interface) is a medium for interaction and information exchange between systems and users. It refers to designers visualizing the interaction process between humans and machines through graphical design. HMI design aims to provide a user-friendly interface that enables users to easily interact and operate with machines or systems.

ESP32 Main Control Parameters:
- Module: ESP32-S3
- CPU: for Xtensa LX7 32-bit dual core processor
- Main frequency: 240MHz (maximum)
- Storage: 384KB ROM + 512KB SRAM + 16KB RTC SRAM + 8M built-in OPI PSRAM + 16M external QSPI Flash
- WiFi: 2.4GHz frequency band support 20MHz and 40MHz
- Bluetooth: Bluetooth V4.2 BR/EDR and Bluetooth LE standard
- Working voltage: 3.0 - 3.6V
- Working temperature: -40℃ to 85℃

Touch Screen Parameters:
- Effective area size: 2.8-inch
- Touch screen type: capacitive touch screen
- Touch screen resolution: 240 x 320 (pixels)
- Driving IC: FT6336G
- Visual window size: 43.60 (W) x 58.05 (H)±0.15mm
- Communication interface: IIC
- Structure material: ITO film + ITO glass
- Working temperature: -30℃ to 80℃
- Storage temperature: -30℃ to 80℃

Dimensions:
- Touch screen size: 50.00±0.2 (W) x 69.20±0.2 (H) x 1.20 (D)±0.1 (D) (excluding wiring and adhesive backing)
- Module size: 50.00 (W) x 86.00 (H) x 9.10 (D)mm

Electric Parameters:
- Working voltage: 5V
- Backlight current: 79mA
- Total current:
  ESP32 reset: 0mA
  Only the display screen works: 140mA
  Display screen, speaker, and battery charging all work: 560mA
- Power consumption: 0.65W (only the display screen works)
- Lithium battery interface charging voltage: 4.2 - 6.5V; 5V (typical value)
- Charging current: 500mA (maximum value); 290mA (module actual value)
- Recommended external battery specification: 3.7V Lithium ion polymer battery

Interface Function Description:
- ESP32-S3: display module main control, control board mounted peripherals and external peripherals.
- Micro SD card slot: insert a Micro SD card (not included) to expand storage space, such as storing large data contents such as word libraries, images, audio files, etc.
- RGB tri-color light: LED lights with three colors: red, green, and blue, requiring only one IO control to indicate status.
- Serial port: 1.25mm 4P. Can be used for serial debugging, downloading, and communication. An external USB to serial port module (not included) is required.
- Battery interface: 1.25mm 2P, used for connecting 3.7V lithium polymer batteries. Charging the battery through the battery charging management circuit can also be used for battery power supply. Pay attention to the positive and negative terminals of the interface.
- BOOT button: used for entering download mode or key testing. Press and hold this button to power on, then release it to enter download mode. Alternatively, after powering on, hold down this button and then press the RESET button, after releasing the RESET button, you can also enter download mode by releasing this button again. When there is no need to enter download mode, this button can be used as a regular button.
- Type-C interface: used for module power supply and program download. This interface is connected to the one click download circuit on the module, which can automatically enter the download mode (without pressing the BOOT key).
- RESET button: used for ESP32 main control and LCD reset, press to reset the voltage level.
- Expand input pins: 1.25mm 4P. Lead out GPO2/3/14/21 pins.
- Speaker interface (optional): 1.25mm 2P. Used for connecting speakers to play audio.
- IIC peripheral interface: 1.25mm 4P. Used for external IIC communication equipment, this IIC interface is shared with capacitive touch screens. Can be used for regular IO.

Package Included:
- 1 x ES3N28P-Touch-LCD
- 1 x 1.25mm to DuPont 2.54 Terminal Wire 40 20cm
- 1 x USB Type-C Cable
- 1 x Speaker