This board comes with an Xtensa 32-bit LX7 dual-core processor that operates up to 240MHz and 16MB Flash, 8MB PSRAM and an SD card slot. It supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) with an antenna, and you'll find UART, I2C and GPIO connections on the board with a USB-C port for power.
On the back of the board, you'll find a colourful 2.8" IPS display with 65K colours and a 480 x 640 resolution. The capacitive touchscreen version (Optional) uses the I2C connection for touch control and has the interrupt function. There is also an MX1.25 2-pin connector for a 3.7V lithium battery and an RTC battery connector.
Two variants are available - Without Touch or With Touch. Please select an option before adding it to your cart!
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). If you want to source your own battery to fit inside the case, a battery size of 3.85 x 24 x 28 mm is recommended.
Features
- 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
- 512KB SRAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM
- 2.8" LCD display, 480 x 640 resolution
- Supports touch control via I2C interface, with interrupt support (for touch version only)
- UART, I2C, some IO interfaces and a full-speed USB port
- QMI8658 6-axis sensor, RTC sensor, TF card slot and battery recharge management module, etc.
- Supports accurate control such as flexible clock and multiple power modes to realise low power consumption in different scenarios
What's on Board

-
ESP32-S3R8
Dual-core processor, up to 240MHz operating frequency
- 16MB Flash
-
QST attitude sensor
QMI8658 (6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer)
- Onboard ceramic antenna
-
TCA9554PWR
GPIO expander chip
-
RTC chip
PCF85063 RTC chip
-
MP1605GTF-Z
Power module, 2A current (MAX)
- Battery recharge manager
- Buzzer
-
TF card slot
on the back side of the PCB
- BOOT button
- RESET button
-
IPEX1 connector
Switching to use an external antenna via resoldering the resistor
- 2 x 12-pin 2.54mm pin header
-
RTC battery header
for connecting rechargeable RTC battery
-
MX1.25 battery header
MX1.25 2-pin connector, for 3.7V Lithium battery, supports charging and discharging
- UART header
- Charge indicator
- USB Type-C port
- Power indicator
-
I2C header
connecting with an internal chip only supports the I2C peripherals and cannot be mapped to other functions
-
Battery power supply control button
Resources
Without Touch
With Touch
Pinout

Package Contents
Without Touch
- 1x ESP32-S3 2.8" Display Development Board
- 1x SH1.0 4-pin cable (100mm)
With Touch
- 1x ESP32-S3 2.8" Touch Display Development Board
- 1x SH1.0 4-pin cable (100mm)