The HW-466AB ESP32-C3 Super Mini is a high-performance, ultra-compact development board built around the ESP32-C3FH4 chip. Unlike the older dual-core ESP32, this board uses a modern 32-bit RISC-V single-core processor. Its specifically designed for space-constrained projects where a standard NodeMCU is too bulky. Despite its tiny size, it features a built-in ceramic antenna, 11 digital I/Os, and a modern USB Type-C interface for power and programming.
Ultra-Compact Form Factor: Measuring roughly 22.5mm x 18mm, it fits into the smallest enclosures and wearables.
Modern RISC-V Core: Faster and more power-efficient than the older ESP8266, running at up to 160MHz.
Advanced Connectivity: Supports both 2.4GHz Wi-Fi and Bluetooth 5 (LE) for long-range and low-energy communication.
USB-C Interface: No more searching for old Micro-USB cables; uses the universal Type-C standard.
4MB Integrated Flash: The FH4 designation means 4MB of flash is built directly into the chip for maximum reliability.
| Feature | Specification |
| Microcontroller | ESP32-C3FH4 (RISC-V 32-bit) |
| Clock Speed | 160 MHz |
| Flash Memory | 4 MB (Integrated) |
| SRAM | 400 KB |
| WiFi | 802.11 b/g/n (up to 150 Mbps) |
| Bluetooth | Bluetooth 5 / BLE (Long Range support) |
| Digital I/O Pins | 11 Pins (All support PWM) |
| ADC | 2 x 12-bit SAR ADC (up to 6 channels) |
| Interface | USB Type-C, SPI, I2C, UART, I2S |
| Dimensions | 22.52mm x 18mm |
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