ESP32-C3-DevKitC-02 is an entry-level development board based on ESP32-C3-WROOM-02, a general-purpose module with 4 MB SPI flash. This board integrates complete Wi-Fi and Bluetooth LE functions.
Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-C3-DevKitC-02 on a breadboard.
Description of Key Components:
ESP32-C3-WROOM-02 from Espressif is a powerful and general-purpose module that offers Wi-Fi and Bluetooth LE coexistence. It has a PCB antenna and a 4 MB SPI flash.
2, 5V to 3.3V LDO
Power regulator that converts a 5 V supply into a 3.3 V output.
3, 5V Power On LED
Turns on when the USB power is connected to the board.
4, I/O Connector
All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board.
5, Boot Button
Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port.
6, Micro-USB Port
USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-C3 chip.
7, Reset Button
Press this button to restart the system.
8, USB-to-UART Bridge
Single USB-to-UART bridge chip provides transfer rates up to 3 Mbps.
9, RGB LED
Addressable RGB LED, driven by GPIO8.
Power Supply Options
There are three mutually exclusive ways to provide power to the board:
Micro-USB port, default power supply
5V and GND pin headers
3V3 and GND pin headers
It is recommended to use the first option: micro-USB port.
1 X ESP32-C3-DevKitC-02 Development board