ESP32 development board, embeds ESP32-WROOM-32D, 4MB flash, with pin header
ESP32-WROOM-32D soldered to the ESP32-DevKitC V4 board.
? Optional Space for ESP32-WROVER
Longer ESP32-WROVER modules may be soldered instead of the ESP32-WROOM-32.
? USB-to-UART Bridge
A single chip USB-to-UART bridge provides up to 3 Mbps transfers rates.
? Boot Button
Download button: holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
? EN Button
Reset button: pressing this button resets the system.
? Micro USB Port
USB interface. It functions as the power supply for the board and the communication interface between PC and the ESP module.
? Power On LED
Turns on when the power supply is applied to the board. For details see schematic in Related Documents.
? I/O Connector
Most of the pins on the ESP module are broken out to the female pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
? Power Supply Options
1. Micro USB port, this is default power supply connection
2. 5V / GND header pins
3. 3V3 / GND header pins
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