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Two tiny green circuit boards with pin headers and a metal antenna area

KEHIPI

KEHIPI ESP32-C3 Mini Development Board 4MB Flash 2PCS

SKU CH-APWR-411YH

Two compact ESP32-C3 boards with 11 GPIO, 4 ADC, Wi-Fi and Bluetooth 5.0 for space-constrained IoT projects

  • RISC-V CPU at 160 MHz with FPU enables fast floating-point math
  • 11 GPIO pins support PWM and digital I/O for actuator control
  • 4 ADC channels connect analog sensors directly to the board
  • Bluetooth 5.0 with BLE and long-range mode for reliable wireless links
  • 400 KB SRAM allows multitasking in compact IoT applications

Compact IoT Board for Tight Spaces

The KEHIPI ESP32-C3 Mini Development Board is an ultra-compact IoT edge device designed for space-limited embedded projects. It features a single-sided surface mount layout that simplifies integration into small enclosures. Each pack includes two boards, providing a spare unit or enabling dual-node prototypes. The 32-bit RISC-V processor runs at up to 160 MHz with an FPU and 400 KB SRAM for multitasking.

Makers Needing Wireless and Rich I/O

This board suits developers building low-power IoT or wearable devices that require Wi-Fi and Bluetooth 5.0 connectivity. It provides 11 GPIO pins for digital I/O and PWM, plus 4 ADC pins for analog sensors. UART, I2C and SPI interfaces allow versatile peripheral expansion. Buyers who need more GPIOs, higher flash capacity or a different wireless protocol should look at other modules.

Check Power and Antenna Clearance

Verify your project can supply the correct voltage and current for the ESP32-C3 core before ordering. Ensure the external antenna has enough clearance in your enclosure for reliable signal strength. Confirm that your development environment supports the RISC-V architecture and the provided bootloader button workflow. The onboard reset and bootloader buttons assist with flashing and debugging.

Highlights

  • RISC-V CPU at 160 MHz with FPU enables fast floating-point math
  • 11 GPIO pins support PWM and digital I/O for actuator control
  • 4 ADC channels connect analog sensors directly to the board
  • Bluetooth 5.0 with BLE and long-range mode for reliable wireless links
  • 400 KB SRAM allows multitasking in compact IoT applications

Specifications

BrandAITRIP

Questions about this item

What external antenna connection does the board provide for Wi-Fi and Bluetooth 5.0 range?

The board includes an external antenna interface to enhance signal strength and coverage for IEEE 802.11 b/g/n Wi-Fi and Bluetooth 5.0 connections.

How many GPIO and ADC pins are available to connect my existing sensors and actuators?

You get 11 GPIO pins that support digital I/O and PWM output plus 4 ADC pins for analog sensor input.

How can I verify the 32-bit RISC-V CPU and wireless radios are functioning after flashing firmware?

Use the onboard reset and bootloader buttons to enter download mode, then monitor serial output over the UART interface for boot logs and Wi-Fi or Bluetooth 5.0 connection status.

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