ESP32-C3 is a low-cost microcontroller from Espressif supports 2.4 GHz Wi-Fi and Bluetooth Low Energy ( Bluetooth 5 (LE)). RISC V as the There's a minimum number of pins on this chip, it's specifically designed to be low cost and for simpler projects than ESP32- or ESP32 classics with their number of GPIO. Think of it more as an intended replacement to the ESP8266 than to the ESP32 It has -inUSB-to-Serial, but not native USB - it cannot as a keyboard or disk drive.The chip used here has 4MB of Flash memory, 400 KB of SRAM.The ESP32-C3 integrates a set of peripherals, ranging from UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI controller, USB Serial/JTAG controller, temperature sensor, and . It also includes SPI, Dual SPI, and Quad SPI interfaces. There is no DAC or native capacitive touch.With state-of-the-art and RF performance, this SoC is an ideal choice for a wide variety of application scenarios relating to the Internet of Things (IoT), wearable electronics, and smart homes.Featuresbased ESP32-C3FH4 WIFI & Bluetooth LE RISC-V Single-Core CPUType-C USB4MB Flash11x IO1x1.0-4P connector(GND,3V3,SDA(GPIO5),SCL(GPIO6))1x RGB(GPIO2)1xLED(3.3V Supply)1xReset button(CHIP_EN,great for restarting your program or entering the ROM bootloader)1xBoot button(GPIO9,entering the ROM bootloader or for user input) with MicroPython, for and ESP-IDF3.3V Regulator with 500mA outputsize: 23.5 x 18 mmMaterial: PCBcolour: purplePackage Contents:1 x ESP32 C3 Development BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.