ESP32-C3 SuperMini Dev Board WiFi Bluetooth 5 Arduino IoT
ESP32-C3 SuperMini Dev Board WiFi Bluetooth 5 Arduino IoT
ESP32-C3 SuperMini Development Board — Compact IoT Powerhouse
Meet the ESP32-C3 SuperMini, an ultra-compact IoT development board built around the Espressif ESP32-C3 chip. Powered by a 32-bit RISC-V single-core processor running up to 160 MHz and featuring dual-mode WiFi + Bluetooth 5.0 (LE), this tiny board packs serious performance into a thumb-sized footprint (22.52 × 18 mm). Whether you're building smart home gadgets, wireless wearables, or IoT sensor nodes, the ESP32-C3 SuperMini is the perfect starting point — and it's fully compatible with the Arduino IDE.
Made in Mainland China.
Key Features
- Powerful CPU: ESP32-C3 (ESP32C3FN4), 32-bit RISC-V single-core processor, up to 160 MHz with FPU for 32-bit single-precision operations
- WiFi: IEEE 802.11 b/g/n, 2.4 GHz — supports Station, SoftAP, SoftAP+Station, and hybrid modes
- Bluetooth 5.0 (LE): Low-energy Bluetooth for wearable and sensor applications
- Ultra-Low Power: Deep sleep current of only ~43 µA — ideal for battery-powered projects
- Onboard Memory: 400 KB SRAM, 384 KB ROM, 4 MB Flash
- Rich Interfaces: 11 × GPIO (PWM-capable), 4 × ADC, 1 × I2C, 1 × SPI, 2 × UART
- Hardware Security: AES-128/256 encryption, RSA, HMAC, SHA hashing, digital signatures, and secure boot
- Onboard Blue LED: Connected to GPIO8 pin
- Compact Form Factor: Single-sided surface-mount design, fits easily into space-constrained enclosures
- External Antenna: Enhances wireless signal strength for demanding environments
- Buttons: Dedicated Reset and Boot loader mode buttons onboard
- Multi-Pack Options: Available in quantities from 1 to 50 — stock up for classroom or lab use
Technical Specifications
| Chip Model | ESP32C3FN4 |
| CPU | 32-bit RISC-V, up to 160 MHz |
| WiFi Protocol | IEEE 802.11 b/g/n @ 2.4 GHz |
| Bluetooth | Bluetooth 5.0 Low Energy (LE) |
| Flash | 4 MB |
| SRAM | 400 KB |
| ROM | 384 KB |
| GPIO (PWM) | 11 pins |
| ADC | 4 pins |
| Serial Interfaces | 2× UART, 1× I2C, 1× SPI |
| Deep Sleep Current | ~43 µA |
| Board Dimensions | 22.52 × 18 mm |
| Onboard LED | Blue, GPIO8 |
| Origin | Mainland China |
Who Is This For?
The ESP32-C3 SuperMini is designed for makers, hobbyists, students, and professional prototypers who need a capable, low-power wireless microcontroller in the smallest possible package. It works seamlessly with the Arduino IDE and MicroPython, making it an excellent upgrade from older boards like the ESP8266 or classic ESP32 DevKit.
For more information on best practices for IoT device security and wireless communication standards, visit the NIST Internet of Things resource page.
Frequently Asked Questions
Q: Is the ESP32-C3 SuperMini compatible with the Arduino IDE?
A: Yes! The ESP32-C3 SuperMini is fully compatible with the Arduino IDE. Simply add the Espressif ESP32 board package to your Arduino IDE board manager and you can upload sketches directly over USB. It also supports MicroPython for Python-based development.
Q: What is the difference between the ESP32-C3 SuperMini and a standard ESP32 DevKit?
A: The ESP32-C3 SuperMini uses the newer RISC-V architecture (rather than Xtensa LX6/LX7) and is significantly smaller at just 22.52 × 18 mm. It features Bluetooth 5.0 LE, ultra-low deep-sleep power (~43 µA), and hardware security accelerators, making it better suited for compact, battery-powered, and security-conscious IoT projects compared to a traditional ESP32 DevKit.
Q: Can I order multiple boards at once?
A: Absolutely. This listing offers multi-pack options ranging from 1 to 50 boards, making it cost-effective for classrooms, labs, and prototyping teams that need multiple units.
Q: What wireless modes does the WiFi support?
A: The onboard 2.4 GHz WiFi supports IEEE 802.11 b/g/n and can operate in Station mode (connects to a router), SoftAP mode (acts as an access point), SoftAP+Station mode (both simultaneously), and hybrid mode — giving you maximum flexibility for your network topology.
Q: Does the board have built-in security features?
A: Yes. The ESP32-C3 chip includes hardware-accelerated encryption supporting AES-128/256, RSA, HMAC, SHA hashing, digital signatures, and secure boot — providing a strong security foundation for IoT deployments right out of the box.