ESP32-S2-DevKitM-1 is an entry-level development board equipped with ESP32-S2-MINI-1 module. Most of the I/O pins on the module are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount the development board on a breadboard. ESP32-S2-MINI-1 is a generic Wi-Fi MCU module that integrates ESP32-S2FH4 chip. ESP32-S2-MINI-1 comes with a PCB antenna and features a 4 MB SPI flash. Description of Components Key Component Description ESP32-S2-MINI-1 ESP32-S2-MINI-1 is a generic Wi-Fi MCU module that integrates ESP32-S2FH4 chip. ESP32-S2-MINI-1 comes with a PCB antenna. And the module features a 4 MB SPI flash. 3.3 V Power On LED Turns on when the USB power is connected to the board. USB to UART Bridge Single USB-UART bridge chip provides transfer rates up to 3 Mbps. I/O Connector All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. Users can program ESP32-S2FH4 chip to enable multiple functions such as SPI, I2S, UART, 12C, touch sensors, PWM etc. For details, please check the table below. Reset Button Reset Button. Micro-USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2FH4 chip. Boot Button Download button. Holding down Boot and then pressing Reset initiates firmware Download mode for downloading firmware through the serial port. RGB LED Addressable RGB LED (WS2812), driven by GPIO18. 5V to 3.3V LDO Power regulator that converts a 5 V supply into a 3.3 V output. Pin Header The tables below provide the Name and Function of I/O header pins on both sides of the board, the numbering and names are the same as in the schematics in the picture above. J1 J2
