Overview
The ESP32-C3 Super Mini (Model HW-466AB) is a thumbnail-sized development board designed for the next generation of IoT. Unlike the classic ESP32, the C3 uses the open-source RISC-V architecture, offering better power efficiency and modern security features. With its integrated WiFi and Bluetooth 5.0 (LE), it is the perfect choice for battery-powered smart home nodes, tiny robots, and “invisible” electronics projects.
Key Features
Ultra-Tiny Footprint: About the size of a coin, making it easy to hide in small enclosures or wearable gear.
Modern RISC-V Core: Faster and more efficient than the old ESP8266, running at a crisp 160MHz.
Native USB-C: No more hunting for old micro-USB cables! Features a modern Type-C port for both power and high-speed programming.
Dual Connectivity: Supports 2.4GHz WiFi and Bluetooth 5.0 (LE) for long-range and low-energy communication.
4MB Flash: Plenty of space for your Arduino code, MicroPython scripts, or ESP-IDF firmware.
Technical Specifications
| Feature | Specification |
| Processor | 32-bit RISC-V Single-Core (160 MHz) |
| Flash Memory | 4 MB (FH4) |
| SRAM | 400 KB |
| Wireless | WiFi 4 (802.11 b/g/n) + BLE 5.0 |
| Working Voltage | 3.3V to 5V (USB-C) |
| Digital I/O | 11 Pins (PWM, I2C, SPI, UART, ADC) |
| USB Interface | Type-C Native |
| Deep Sleep Current | ~5µA (Incredible for battery projects) |
| Dimensions | Approx. 22.5mm x 18mm |
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