ESP32-C3 SuperMini Development Board with IP-EX Interface Wi-Fi+BT Microcomputers ESP32 C3 Chip. There is an IP-EX antenna holder on the top of the board, which can be connected to an external 2.4G antenna. The ESP32C3SuperMini is an IoT mini development board based on the ESP32-C3 WiFi/Bluetooth dual-mode chip.The ESP32-C3 is a 32-bit RISC-V CPU containing a FPU (Floating Point Unit) for 32-bit single- arithmetic with powerful computational capabilities. It has excellent performance and supports IEEE 802.11 b/g WiFi and Bluetooth 5 (LE) protocols. It also features a small and compact form factor combined with a single-sided mount design. It is equipped with a rich set of interfaces, with 11 digital I/Os that can be used as PWM pins and 4 analogue I/Os that can be used as ADC pins, and it supports four serial interfaces, including UART, and SPI. There is also a small reset button and a bootloader mode button on the board. Taken together, the ESP32C3SuperMini is positioned as a high-performance, low-power, cost-effective IoT mini development board for low-power IoT applications and wireless wearable applications. Parameters: Powerful CPU: ESP32-C3, 32-bit RISC-V single-core processor, running at up to 160 MHz. WiFi: 802.11b/g protocol, 2.4GhHz, supports Station mode, SoftAP mode, SoftAP+Station mode, Mixed mode Blue-tooth: Blue-tooth 5.0 Ultra-low power consumption: deep sleep power consumption of about 43μA Rich board resources: 400KB , 384KB ROM 4Mflash built-in. Chip Model : ESP32C3FN4 Reliable security features: cryptographic hardware accelerator with support for -128/256, hash, , HMAC, digital signature and secure boot Rich interfaces: 1xI2C, 1xSPI, 2xUART, 11xGPIO(PWM), 4xADC On-board LED blue light: GPIO8 pinout External power supply: If you need external power supply just connect the external power supply + level to the 5V position and GND to the negative terminal. (Support 3.3~6V power supply). Remember that when connecting the external power supply, you can not access the USB, USB and external power supply can only choose one. Note: When welding, please be careful not to short-circuit the positive and negative terminals and burn the battery and equipment. Color: Black Material: PCB Package Contents: 1*Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.