ONX2424G013
A compact 1.28 inch circular OpenNextion ESP32-S3 knob display for rotary controls, embedded interfaces, and LVGL applications.
Overview
Key Features
ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor up to 240 MHz, with 8 MB PSRAM and 16 MB Flash.
1.28-inch 240x240 circular IPS LCD with 262K colors and GC9A01N panel driver.
Integrated rotary encoder supports clockwise and counterclockwise rotation plus push interaction.
2.4 GHz Wi-Fi and Bluetooth 5 LE with an onboard antenna.
USB-C, physical UART, and six general-purpose GPIOs support power, flashing, logging, and peripheral expansion.
Compatible with ESP-IDF, Arduino ESP32, ESPHome, and LVGL.
Preview
Specifications
Model Name
ONX2424G013
Size
1.28 inch
Resolution
240x240
Color
262K
Brightness
300 nit
Display Type
IPS
Touch Type
Not supported; rotary and push interaction
MCU
ESP32-S3R8
Flash
16 MB
PSRAM
8 MB
Panel Driver
GC9A01N
Knob
Two-phase quadrature encoder
Operating Voltage
DC 5V-1A
Working Temperature
-20~70 C
Storage Temperature
-30~80 C
Weight
Net 49.8g / Gross 88g
Interfaces
1.USB-C
USB-CUsed for firmware flashing, log printing, and 5V power supply.
2.GPIOs
2x4 pin header, 2.54mm pitchProvides 5V, GND, and six general-purpose IO pins.
3.UART Interface
MX1.25-2PPhysical UART using the MX standard pinout.
4.BOOT Button
Hold BOOT and press RESET once to enter firmware download mode.
5.RESET Button
Resets the device.
6.Screw Hole
M1.6Three rear screw holes provide secure mounting.
Product Dimensions
Pin Description
LCD SCLK
GPIO5
SPI clock.
LCD MOSI
GPIO1
SPI data output (MOSI).
LCD CS
GPIO2
LCD chip select.
LCD DC
GPIO3
LCD command/data select.
LCD RESET
GPIO8
LCD reset.
LCD BL
GPIO6
PWM backlight.
Encoder A
GPIO48
Phase A signal; pull-up and any-edge interrupt.
Encoder B
GPIO47
Phase B signal; pull-up and any-edge interrupt.
KEY
GPIO9
Active low with pull-up.
BOOT
GPIO0
Active low with pull-up; boot strapping pin.
UART
TX(GPIO43), RX(GPIO44)
Physical UART.
USB
DM(GPIO19), DP(GPIO20)
USB D-/D+; also available on the 2x4 header.
Expansion GPIOs
GPIO11, GPIO18, GPIO17, GPIO10
Available on the 2x4 header.
Resources
FAQ
Buttons
The product includes RESET, BOOT, and the knob button. The knob button supports confirmation and exit operations, and holding it for 10 seconds restores factory settings.
Peripheral interfaces
The product includes USB-C, physical UART, and a 2x4 GPIO header with six general-purpose GPIO pins, GND, and 5V.
Touch support
Touch is not supported. Interaction uses clockwise or counterclockwise knob rotation and knob presses.
Mounting
The rear plate has three M1.6 mounting holes. Four screws are included, with one spare.
Waterproofing
The product is not waterproof. A waterproof enclosure can be designed using the product 3D files.
Rapid UI development
SquareLine Studio, LVGL Editor, and other LVGL-based UI tools are supported.
Compatibility
This development board can run OpenNextion firmware examples and works with supported OpenNextion accessories.