ESP32-S3 Development Board with 2.1" Round Touch LCD Display (480 x 480)

This ESP32-S3 development board has 2.4GHz Wi-Fi and Bluetooth 5 (BLE), to give you great wireless options. The board is driven by an Xtensa 32-bit LX7 dual-core processor, running at up to 240MHz, giving the performance needed for responsive interfaces and multitasking.

With 16MB of Flash and 8MB of PSRAM, alongside 512KB SRAM and 384KB ROM, the board is well-equipped for memory-intensive projects. Its 2.1" capacitive touch display with a 480 x 480 resolution and 262K colours brings a colourful and sharp visual experience suitable for GUI programs like LVGL.

It also includes UART, I2C, and several GPIO options, plus a full-speed USB-C port, QMI8658 6-axis sensor, RTC sensor, SD card slot, and a battery management module for rechargeable power. It is compatible with both ESP-IDF and Arduino IDE, making it versatile for anyone looking to bring advanced touch functionality to their projects in areas like industrial control, smart home devices, and more.

Please note: this board uses a tiny MX1.25 connector for LiPo power. Most LiPo batteries on the market (including ours) use a larger JST fitting. We do not yet stock batteries with an MX1.25 connector, however, you can customise your battery with one of our 1.25mm pitch cables to make a compatible battery yourself (assuming you have the ability, knowledge and tools to do this safely).

Features

• Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
• Built-in 512KB SRAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM
• 2.1" capacitive touch display, 480×480 resolution, 262K color
• Supports touch control via I2C interface, with interrupt support
• UART, I2C and some IO interfaces, integrating full-speed USB port
• QMI8658 6-axis sensor, RTC sensor, TF card slot and battery recharge management module, etc.
• Accurate control such as flexible clock and multiple power modes to realize low power consumption in different scenarios

What's on Board

1. ESP32-S3R8
   Dual-core processor, up to 240MHz operating frequency
2. QST attitude sensor
   QMI8658C (6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer)
3. TCA9554PWR
   GPIO expander chip
4. FSUSB42UMX
   UART selection chip, the 4-pin UART header is disabled when connected to the UART Type-C port
5. CH343P
   USB to UART with onboard automatic download circuit, enabling program burning without additional operations
6. 16MB Flash
7. RTC chip
   PCF85063 RTC chip
8. Battery Recharge Manager
9. ME6217C33M5G
   Low dropout regulator, 800mA output (Max.)
10. USB Type-C Port
11. MX1.25 battery header
    MX1.25 2-pin connector, for 3.7V Lithium battery, supports charging and discharging
12. 12-pin multi-functional pin header
13. IPEX1 Connector
    Switching to use an external antenna via resoldering the resistor
14. SD Card Slot
15. RTC Battery Header
    for connecting rechargeable RTC battery
16. I2C Header
    Connecting with the internal chip only supports the I2C peripherals and cannot be mapped to other functions
17. UART Header
    only available when the USB to UART Type-C port is not connected
18. USB TO UART Type-C Port
19. Buzzer
20. Power Indicator
21. Charge Indicator
    Lithium battery charge indicator lights up when charging, and off when fully charged (the light status is uncertain when the battery is not connected)
22. Battery power supply control button
23. RESET button
24. BOOT button

Specifications

Resources

• Product Wiki
• Schematic
• 2.1" LCD Datasheet

Package Contents

• 1x ESP32-S3 2.1" Touch Round Display
• 1x SH1.0 12-pin cable -100mm
• 1x SH1.0 4-pin cable -100mm