ESP32-C3 Wi-Fi & Bluetooth 5.0 Dev Board | Type-C, Antenna

ESP32-C3 Wi-Fi & Bluetooth 5.0 Development Board

Meet the ESP32-C3 Development Board by diymore — a compact, powerful, and cost-effective module built for IoT makers, hobbyists, and engineers. Powered by the ESP32C3FN4 chip with a 32-bit RISC-V single-core processor running up to 160 MHz, this board packs impressive performance into a thumb-sized footprint (just 22.52 × 18 mm). With a Type-C USB port, external antenna connector, and onboard RGB LED, it's ready for your next wireless project right out of the box.

Made in Mainland China.

✦ Key Features

• Powerful CPU: ESP32-C3 32-bit RISC-V single-core processor, up to 160 MHz — supports 32-bit single-precision operations.
• Wi-Fi: IEEE 802.11 b/g/n at 2.4 GHz; supports Station, SoftAP, SoftAP+Station, and mixed modes.
• Bluetooth 5.0 (LE): Low-energy Bluetooth for modern wireless connectivity.
• External Antenna Port: Boost signal range and strength beyond the onboard antenna.
• Ultra-Low Power: Deep sleep consumption of just ~43 µA — ideal for battery-powered and wearable devices.
• Onboard RGB Module & Blue LED: RGB module for richer visual feedback; blue LED connected to GPIO8.
• Type-C USB Port: Modern, reversible connector for easy programming and power.
• Rich Memory: 400 KB SRAM, 384 KB ROM, 4 MB Flash.
• Hardware Security: AES-128/256, SHA hash, RSA, HMAC, digital signatures, and secure boot with hardware-accelerated encryption.
• Rich Interfaces: 1× I2C, 1× SPI, 2× UART, 11× GPIO (PWM), 4× ADC.
• Surface-Mount Design: Single-sided, compact form factor perfect for wearables and space-constrained projects.
• Reset & Boot Buttons: Dedicated hardware buttons for easy flashing and debugging.

📋 Technical Specifications

🔌 How to Enter Download Mode

1. Hold down the BOOT button.
2. Press and then release the RESET button.
3. Release the BOOT button.
4. The board will now be in download mode — ready to flash firmware.

Note: When using external power, connect the positive terminal to the 5V pin and negative to the GND pin (supports 3.3–6 V). Do not connect USB and external power simultaneously — use one or the other.

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Frequently Asked Questions

Q: What wireless protocols does the ESP32-C3 development board support?

A: The ESP32-C3 board supports IEEE 802.11 b/g/n Wi-Fi at 2.4 GHz (Station, SoftAP, SoftAP+Station, and mixed modes) and Bluetooth 5.0 Low Energy (LE), making it highly versatile for IoT, smart home, and wireless wearable projects.

Q: Can I use the ESP32-C3 board with an external antenna?

A: Yes! The board features a dedicated external antenna port, allowing you to connect an external antenna to extend wireless range and improve signal strength — ideal for projects where range is critical.

Q: What power options does the ESP32-C3 development board support?

A: You can power the board via the Type-C USB port or through the 5V and GND pins using an external supply (3.3–6 V). Important: USB and external power must not be connected at the same time — select one power source only.

Q: Is this board suitable for beginners?

A: Absolutely. The diymore ESP32-C3 board includes dedicated BOOT and RESET buttons to simplify firmware flashing, a Type-C USB port for easy connection, and an onboard blue LED and RGB module for quick testing — making it a great starting point for anyone exploring IoT or embedded development.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.