ESP32-C3 SuperMini V2 is a compact IoT development board based on the ESP32-C3 WiFi/Bluetooth dual-mode chip. It delivers strong RF performance and supports IEEE 802.11 b/g/n WiFi and Bluetooth 5 (LE) protocols. The board features an onboard antenna interface and integrated RGB module. Designed with a sleek, single-sided surface-mount layout, it offers a small and refined form factor. It supports multiple serial interfaces including UART, I2C, and SPI. Onboard buttons include a reset button and a boot mode button for programming. This low-power, high-performance development board is ideal for IoT applications and wireless wearable devices. For external power supply, connect the positive lead to the 5V pin and the ground to GND. The board accepts 3.3V to 6V input. When using an external power source, do not connect USB power—only one power source should be used at a time. To enter download mode: Press and hold the BOOT button, press and release the RESET button, then release the BOOT button. The device will enter download mode. This process may need to be repeated if the connection is unstable or the port fails to be recognized. Serial communication note: When using direct USB connection, ensure CDC is enabled on boot. When using a USB-to-serial adapter, disable CDC on boot to ensure proper functionality. Color: Black Material: PCB Package Contents: 1 x unassembled development board 2 x pin headers (color may vary) The package includes only the items listed above. Note: Lighting conditions and display settings may cause slight variations between the product image and actual color. Measurement tolerances may vary by +/- 1-3 cm.