Concise Title: HiLetgo ESP32-DevKitC Development Board for Arduino

The ESP32-DevKitC V4 is a small-sized development board based on the ESP32 microcontroller. The board features most of the I/O pins broken out to the pin headers on both sides, allowing for easy interfacing with peripherals. Developers can either connect external devices using jumper wires or mount the ESP32-DevKitC V4 on a breadboard.

At the core of the board is the ESP32-WROOM-32 module, which houses the powerful ESP32 microcontroller. The board also includes a reset button (labeled "EN") and a download button (labeled "Boot"). Pressing and holding the Boot button, then pressing the EN button, initiates the Firmware Download mode, allowing firmware to be downloaded through the serial port.

The development board is equipped with a single USB-UART bridge chip, providing transfer rates of up to 3 Mbps. The Micro USB port serves as the power supply for the board and the communication interface between a computer and the ESP32 module.

A 5V Power On LED is included, which illuminates when the board is connected to a USB or an external 5V power supply. For detailed information, users can refer to the schematics provided in the Related Documents.

The I/O pins of the ESP module are broken out to the pin headers, allowing developers to program the ESP32 to enable a wide range of functions, such as PWM, ADC, DAC, I2C, I2S, and SPI.

The package includes two ESP32-DevKitC ESP32-WROOM-32U Core Boards, each featuring the ESP32-WROOM-32U module.

In summary, the ESP32-DevKitC V4 is a compact and versatile development board that provides easy access to the ESP32 microcontroller's features and functionalities, making it an excellent choice for a variety of IoT and embedded projects.

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