Data Sheet

Key Component
Description
is ESP32-C3FN4, a chip that has an embedded flash of 4 MB. Since flash
is packaged in the ESP32-C3FN4 chip, rather than integrated into the
module, ESP32-C3-MINI-1 has a smaller package size.
5 V to 3.3 V LDO
Power regulator that converts a 5 V supply into a 3.3 V output.
5 V Power On
LED
Turns on when the USB power is connected to the board.
Pin Headers
All available GPIO pins (except for the SPI bus for flash) are broken out
to the pin headers on the board. For details, please see Header Block.
Boot Button
Download button. Holding down Boot and then pressing Reset initiates
Firmware Download mode for downloading firmware through the serial
port.
Micro-USB Port
USB interface. Power supply for 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
Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
RGB LED
Addressable RGB LED, driven by GPIO8.
Start Application Development
Before powering up your ESP32-C3-DevKitM-1, please make sure that it is in good
condition with no obvious signs of damage.
Required Hardware
• ESP32-C3-DevKitM-1
• USB 2.0 cable (Standard-A to Micro-B)
• Computer running Windows, Linux, or macOS
Note
Be sure to use an appropriate USB cable. Some cables are for charging only and do not
provide the needed data lines nor work for programming the boards.
Software Setup