The ESP32-C3-DevKitM-1 is an entry-level development board based on the ESP32-C3-MINI-1, a module named for its small size. This board features full Wi-Fi and Bluetooth LE capabilities. Most of the module's I/O pins are distributed across the pin headers on both sides of the board for easy connectivity. Developers can connect peripherals either with jumper wires or mount the ESP32-C3-DevKitM-1 on a breadboard.

Interfaces:

• 5 V to 3.3 V LDO voltage regulator that converts a 5 V supply into a 3.3 V output.
• 5 V power LED lights up when USB power is connected to the board.
• Pin headers: All available GPIO pins (except for the SPI bus for Flash) are distributed across the pin headers on the board.
• Boot button: Holding down Boot and then pressing Reset initiates the firmware download mode for downloading firmware via the serial interface.
• Micro-USB port: USB interface that provides power to the board as well as the communication interface between a computer and the ESP32-C3FN4 chip.
• Reset button: Press this button to restart the system.
• USB-to-UART bridge: A single USB-UART bridge chip allows for transmission rates of up to 3 Mbps.
• RGB LED: Addressable RGB LED controlled via GPIO8.

Power supply options:
There are three mutually exclusive ways to power the board:

• Micro-USB port, standard power supply
• 5 V and GND pin headers
• 3.3 V and GND pin headers.