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Sunton ESP32 Round, an ESP32 with a 1.28" round screen

Suntun ESP32 Round is a development board that integrates an ESP32-C3 along with a 1.28” round IPS touch screen.

We had previously seen in this post the series of Sunton development boards that mount rectangular screens of 2.8” or 3.2”, as very interesting and low-cost devices.

This time we see a similar development from the same manufacturer Sunton, but that this time it mounts a round screen. The truth is that round screens have something “special” that makes them especially attractive.


In this case, we find a 1.28” round IPS screen with 240x240 pixels, with high brightness and viewing angle. Optionally, there is the possibility of choosing it with a capacitive touch panel.

In addition, models with a touch panel incorporate a plastic case, available in black or white. The case gives it a very professional and durable appearance, much more suitable for real projects.

As for the processor, we have an ESP32-C3, whose characteristics are:

  • 32-bit dual-core 160Mhz processor.
  • 520 KiB SRAM memory, external flash memory up to 16MiB
  • Wifi 802.11 b/g/n 2.4GHz (supports WFA/WPA/WPA2/WAPI)
  • Bluetooth v4.2 BR/EDR and BLE
  • 32 GPIO pins
  • 12-bit, 18-channel analog-to-digital converter (ADC)
  • 2 8-bit digital-to-analog converters (DAC)
  • 16 PWM outputs (LED PWM)
  • 3x UART, 4x SPI, 2x I2S, 2x I2C, CAN bus 2.0
  • 11 10-pin analog-to-digital converters
  • 10x capacitive sensors (in GPIO)
  • 1 PWM output for motors, temperature sensor, Hall effect sensor, random number generator, real-time clock (RTC), infrared remote control driver (8 channels)


For programming, of course, like all ESP32 it is compatible with the Arduino environment. Therefore, it is very easy to incorporate into our DIY projects.

As for the price, it can be found on international sellers such as Aliexpress for €14 for the model without a touch panel, and €18 for the model with capacitive touch and a plastic case, in both cases including shipping costs.

As we can see, it is a very complete board at a very interesting price, and probably one of the best options for incorporating a round screen into our projects.