ESP32-S2-DevKitM-1, ESP32-S2-MINI-1 Development Board

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The ESP32-S2-DevKitM-1 is an entry-level development board equipped with ESP32-S2-MINI-1 module.

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.

Block Diagram

A block diagram below shows the components of ESP32-S2-DevKitM-1 and their interconnections.

Description of Components

 

Key Component

Description

ESP32-S2-MINI-1

ESP32-S2-MINI-1 is a powerful, generic Wi-Fi MCU module that integrates an ESP32-S2FH4 chip. It comes with a PCB antenna and features a 4 MB external 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, I2C, touch sensors, PWM etc. For more 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.

5 V to 3.3 V 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 J3
No. Name Type Function No. Name Type Function
1 3V3 P 3.3 V power supply 1 G G Ground
2 0 I/O/T RTC_GPIO0, GPIO0 2 RST I CHIP_PU
3 1 I/O/T RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0 3 46 I GPIO46
4 2 I/O/T RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1 4 45 I/O/T GPIO45
5 3 I/O/T RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2 5 RX I/O/T U0RXD, GPIO44, CLK_OUT2
6 4 I/O/T RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3 6 TX I/O/T U0TXD, GPIO43, CLK_OUT1
7 5 I/O/T RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4 7 42 I/O/T MTMS, GPIO42
8 6 I/O/T RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5 8 41 I/O/T MTDI, GPIO41, CLK_OUT1
9 7 I/O/T RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6 9 40 I/O/T MTDO, GPIO40, CLK_OUT2
10 8 I/O/T RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7 10 39 I/O/T MTCK, GPIO39, CLK_OUT3
11 9 I/O/T RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD 11 38 I/O/T GPIO38, FSPIWP
12 10 I/O/T RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4 12 37 I/O/T SPIDQS, GPIO37, FSPIQ
13 11 I/O/T RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5 13 36 I/O/T SPIIO7, GPIO36, FSPICLK
14 12 I/O/T RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6 14 35 I/O/T SPIIO6, GPIO35, FSPID
15 13 I/O/T RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7 15 34 I/O/T SPIIO5, GPIO34, FSPICS0
16 14 I/O/T RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS 16 33 I/O/T SPIIO4, GPIO33, FSPIHD
17 15 I/O/T RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P 17 26 I/O/T SPICS1, GPIO26
18 16 I/O/T RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N 18 21 I/O/T RTC_GPIO21, GPIO21
19 17 I/O/T RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1 19 20 I/O/T RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
20 5V P 5 V power supply 20 19 I/O/T RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
21 G G Ground 21 18 I/O/T RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3

 

SPECIFICATION

  • ESP32-S2FH4 chip, Xtensa single-core 32-bit LX7 microprocessor
  • 128 KB ROM
  • 320 KB SRAM
  • 16 KB RTC SRAM
  • 40 MHz crystal oscillator
  • 4 MB SPI flash
  • Operating Voltage/Power supply: 3.0~3.6 V
  • Operating Temperature Range: –40~85°C

DOCUMENTS

SHIPPING LIST

  • ESP32-S2-DevKitM-1 Demo Board ×1

ESP32-S2-MINI-1(U) Datasheet (esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf, 794 Kb) [Download]

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