ESP32-C3 Supermini WiFi BT Dev Board

The ESP32-C3 SuperMini is an ultra-compact development board built around Espressif’s ESP32-C3 SoC, packing WiFi and Bluetooth connectivity into a footprint barely bigger than your thumbnail. At its core is a 32-bit RISC-V single-core processor running up to 160MHz, paired with 400KB of SRAM and 4MB of onboard flash, giving you plenty of headroom for IoT firmware, sensor logging, and wireless automation projects. It supports 802.11 b/g/n WiFi at 2.4GHz alongside Bluetooth 5.0 (LE), covering Station, SoftAP, and mixed connectivity modes for flexible network integration. The board breaks out 11 GPIOs supporting PWM, along with 4 ADC channels and UART, I2C, and SPI interfaces, making it easy to interface with sensors, displays, and other peripherals. A USB Type-C port handles both programming and power delivery, while onboard BOOT and RESET buttons simplify flashing and debugging. Despite its tiny size, the board includes an onboard antenna, a status LED on GPIO8, and an integrated voltage regulator for stable operation. It’s fully compatible with Arduino IDE, ESP-IDF, MicroPython, and ESPHome, making it a favorite for hobbyists building wearables, smart home devices, and space-constrained IoT projects where every millimeter counts.

Specification:

• SoC : ESP32-C3
• CPU : 32-bit RISC-V Single-Core, up to 160MHz
• Flash Memory : 4MB
• SRAM : 400KB
• WiFi : 802.11 b/g/n, 2.4GHz
• Bluetooth : 5.0 (LE)
• GPIO : 11 (PWM Capable)
• ADC Channels : 4
• Interfaces : UART, I2C, SPI
• USB : Type-C
• Board Dimensions : 22.5mm x 18mm
• Deep Sleep Current : ~43µA