Powerful CPU: ESP32-C3, 32-bit RISC-V single-core processor, running up to 160 MHz; WiFi: 802.11b/g/n protocol, 2.4GhHz, support Station mode, SoftAP mode, SoftAP+Station mode, hybrid mode Bluetooth: Bluetooth 5.0; Ultra-low power consumption: deep sleep power consumption of about 43μA Rich board resources: 400KB SRAM, 384KB ROM built-in 4Mflash. Chip model: ESP32C3FN4 Ultra-small size: As small as the thumb (22.52x18mm) classic shape, suitable for wearables and small projects; Reliable security features: Encryption hardware accelerators that support AES-128/256, hashing, RSA, HMAC, digital signatures, and secure startup Rich interface: 1xI2C, 1xSPI, 2xUART, 11xGPIO(PWM), 4xADC Single-sided components, surface mount design Onboard LED blue light: GPIO8 pin It comes with a ceramic antenna and IPEX antenna base to enhance signal strength for wireless applications. It also has a small and delicate form factor combined with a single-sided surface mount design. It is equipped with a wealth of interfaces, with 11 digital I/ OS that can be used as PWM pins and 4 analog I/ OS that can be used as ADC pins. It supports four serial interfaces: UART, I2C and SPI. The board also has a small reset button and a boot loader mode button. Combined with the above features, 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. Color: Blue Material: plastic 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.