Entry-level development board ESP32-C3-DEVKITM-1U

ESP32-C3-MINI-1

ESP32-C3-MINI-1 is a general-purpose Wi-Fi and Bluetooth Low Energy combo module that comes with a PCB antenna. At the core of this module 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.