ESP32-C3 Super Mini Dev Board – 2.4G Wi-Fi & Bluetooth IoT

ESP32-C3 Super Mini Development Board with 2.4G Wi-Fi & Bluetooth 5.0

Take your IoT projects to the next level with the ESP32-C3 Super Mini Development Board. Powered by a 32-bit RISC-V single-core processor running up to 160 MHz, this ultra-compact module packs serious performance into a thumb-sized form factor — measuring just 22.52 × 18 mm. Whether you're building wearables, smart home devices, or industrial automation systems, this board delivers reliable wireless connectivity and a rich set of interfaces in a tiny package.

Made in Mainland China.

Key Features

• Powerful CPU: ESP32-C3 (ESP32C3FN4), 32-bit RISC-V single-core, up to 160 MHz
• Wi-Fi: 802.11 b/g/n, 2.4 GHz — supports Station, SoftAP, SoftAP+Station & mixed modes
• Bluetooth: Bluetooth 5.0 for low-energy wireless communication
• Ultra-Low Power: Deep sleep current as low as ~43 µA — ideal for battery-powered IoT devices
• Onboard Memory: 400 KB SRAM, 384 KB ROM, built-in 4 MB flash
• Ultra-Compact Size: 22.52 × 18 mm — perfect for wearables and space-constrained projects
• Rich Interfaces: 1× I2C, 1× SPI, 2× UART, 11× GPIO (PWM), 4× ADC
• Onboard LED: Blue LED on GPIO pin 8
• Robust Security: Crypto hardware accelerator — AES-128/256, SHA, RSA, HMAC, digital signatures & secure boot
• Flexible Power Supply: USB or external 3.3–6 V supply (one at a time)
• Construction: Single-sided component, surface-mount design (Plastic + Metal)

Technical Specifications

How to Enter Download Mode

Press and hold the BOOT button, then press and release the RESET button, then release the BOOT button. The board will enter download mode. Note: re-enter download mode each time you reconnect the board.

Power Supply Note

To use an external power supply, connect the positive lead to the 5 V pad and GND to the negative pole. USB and external power supply cannot be used simultaneously — select only one at a time.

Package Includes

Choose from the following options at time of purchase:

• Option A: 1× ESP32-C3 Super Mini Development Board
• Option B: 1× 2.4G Wi-Fi Antenna
• Option C: 1× ESP32-C3 Super Mini Development Board + 1× 2.4G Wi-Fi Antenna

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Frequently Asked Questions

Q: What is the ESP32-C3 Super Mini Development Board compatible with for programming?

A: The ESP32-C3 Super Mini Development Board is compatible with ESP-IDF (Espressif IoT Development Framework) as well as the Arduino IDE (with the ESP32 board package installed). It supports standard firmware flashing via USB, making it easy to integrate into a wide range of IoT development workflows.

Q: Can I use this board for battery-powered IoT projects?

A: Yes! The ESP32-C3 Super Mini features ultra-low deep sleep power consumption of approximately 43 µA, making it an excellent choice for battery-powered IoT devices such as wireless sensors, smart wearables, and remote monitoring systems. The board also accepts a wide external power supply range of 3.3–6 V.

Q: Does the board have built-in Wi-Fi and Bluetooth, or do I need an external module?

A: The ESP32-C3 chip features built-in 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.0 — no separate module is required. An optional external 2.4G Wi-Fi antenna is available as a bundle option for improved signal range in demanding environments.

Q: What security features does the ESP32-C3 offer?

A: The ESP32-C3 includes a hardware crypto accelerator supporting AES-128/256 encryption, SHA hashing, RSA, HMAC, digital signatures, and secure boot — providing robust protection for connected IoT applications out of the box.