Arduino and LVGL-compatible ESP32-C3 board features a 1.28-inch round touchscreen display fully housed in a case

The ESP32-2424S012 is an ESP32-C3 WiFi and BLE development board with a 1.28-inch round touchscreen color display that is fully housed in a black or white plastic enclosure and suitable for Arduino and LVGL library. As we’ll see further below some have also used it with Tasmota and ESPHome firmware.

We previously covered several tiny ESP32-S3/ESP32-C3 boards with a round display such as the LILYGO T-RGB ESP32-S3 board, Makerfabs “ESP32-S3 Round SPI TFT with Touch 1.28″, SB Components’ Dual Roundy, but they either don’t come with a case at all, or only the front is covered, but the bottom is laid bare. The ESP32-2424S012 is quite similar, but it can be purchased with a case that covers both the front and back with some openings for expansion connectors.

ESP32-2424S012 board specifications:

Wireless module – Espressif Systems ESP32-C3-MINI-1U module
- SoC – ESP32-C3 RISC-V microcontroller @ 160 MHz with 400 KB SRAM, 2.4 GHz WiFi 4, Bluetooth 5.0 LE & Mesh
- Storage – 4MB flash
- Antenna – u.FL antenna connector
Display – 1.28-inch round IPS LCD screen with 16-bit color, 240×240 resolution; based on GC9A01 controller; optional touchscreen (CST816D)
USB – 1x USB Type-C port for power and programming
Expansion – 4-pin JST-1.0 UART connector
Misc – Reset and Button buttons; on/off switch
Power Supply
- 5V via USB-C port
- 2-pin JST-1.25 connector for battery
Dimensions
- 38.5 x 37 mm (without case)
- About 42mm ∅ with case
Weight – About 20 grams

We’re provided with a zip file (note: your browser may issue a security warning due to the use of HTTP instead of HTTPS) with Arduino sample code, specifications, photos, some datasheet, a user manual to use the board with the Arduino IDE, some tools, and flashing instructions.

But I’ve noticed the board is not new and started to appear about a year ago, with people wanting to use it with Tasmota or ESPHome/Home Assistant. GitHub also has 5 projects for the ESP32-2424S012 board. I’ve embedded a short video that uses the board as a media player controller with ESPHome.

There are three/four variants of the board:

Board with no touchscreen and no case
Board with white or black case, but not touchscreen
Board with white or black case and touchscreen

I first found the ESP32-2424S012 ESP32-C3 round display on Banggood where it is sold for $14.93 to $20.78, but it’s also available on AliExpress for slightly lower prices. The M5Dial is another alternative with an ESP32-S3, a 1.28-inch round touchscreen display, and a fully enclosed design, but it’s thicker and more expensive because it’s also a knob/rotary encoder.

Jean-Luc Aufranc (CNXSoft)

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.