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Two tiny ESP32-C3 boards each with a .42-inch OLED screen, ceramic antenna and USB-C connector

KEHIPI

KEHIPI 2PCS ESP32-C3 .42-inch OLED Development Board

SKU CH-PAD4-2G754

Tiny ESP32-C3 board with .42-inch OLED, ceramic antenna and 11 GPIO for IoT wearables

  • Compact 0.42-inch OLED screen gives instant visual feedback
  • Built-in ceramic antenna enables reliable 2.4 GHz Wi-Fi and Bluetooth connectivity
  • 11 GPIO pins with PWM plus I2C, SPI, UART and ADC cover diverse sensor needs
  • Low-power design with multiple sleep modes extends battery life for portable projects
  • Two boards in one pack simplify scaling IoT, wearable or smart-home prototypes

Tiny OLED development board

The KEHIPI pack contains two ESP32-C3 super-mini boards each fitted with a 0.42-inch OLED display, a ceramic antenna and a USB-C connector for power and programming. The modules are based on the ESP32C3FN4/FH4 core with 4 MB flash and provide Wi-Fi and Bluetooth Low Energy connectivity for compact IoT designs.

Makers building wearable or battery-powered nodes

Developers who need a ready-to-use display and wireless stack in a very small footprint will benefit from the integrated screen and low-power modes. Projects that require more than eleven GPIO pins, additional hardware serial ports or a larger display area should consider a different form factor.

Eleven GPIO with PWM and four ADC channels

The board exposes eleven general-purpose pins that support PWM output and four analogue inputs alongside one I²C, one SPI and two UART interfaces, giving a fixed peripheral count that determines whether the board can drive the sensors and actuators your design requires.

Highlights

  • Compact 0.42-inch OLED screen gives instant visual feedback
  • Built-in ceramic antenna enables reliable 2.4 GHz Wi-Fi and Bluetooth connectivity
  • 11 GPIO pins with PWM plus I2C, SPI, UART and ADC cover diverse sensor needs
  • Low-power design with multiple sleep modes extends battery life for portable projects
  • Two boards in one pack simplify scaling IoT, wearable or smart-home prototypes

Specifications

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