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Table of Contents
Espressif Systems ESP32
The Espressif Systems ESP32 is used in cheap WiFi modules. It embeds an Xtensa LX6 CPU.
Pinout
ESP DEVKIT V1
EN +------+ GPIO23 VSPI_MOSI
RTC_GPIO0 SENSOR_VP ADC1_CH0 GPIO36 | | GPIO22 I2C_SCL
RTC_GPIO3 SENSOR_VN ADC1_CH3 GPIO39 | | GPIO1 UART0_TX
RTC_GPIO4 ADC1_CH6 GPIO34 | | GPIO3 UART0_RX
RTC_GPIO5 ADC1_CH7 GPIO35 | | GPIO21 I2C_SDA
RTC_GPIO9 TOUCH9 ADC1_CH4 GPIO32 | | GPIO19 VSPI_MISO
RTC_GPIO8 TOUCH8 ADC1_CH5 GPIO33 | | GPIO18 VSPI_CLK
RTC_GPIO6 DAC1 ADC2_CH8 GPIO25 | | GPIO5 VSPI_CS0
RTC_GPIO7 DAC2 ADC2_CH9 GPIO26 | | GPIO17 UART2_TX
RTC_GPIO17 TOUCH7 ADC2_CH7 GPIO27 | | GPIO16 UART2_RX
RTC_GPIO16 HSPI_CLK TOUCH6 ADC2_CH6 GPIO14 | | GPIO4 ADC2_CH0 TOUCH0 RTC_GPIO10
RTC_GPIO15 HSPI_MISO TOUCH5 ADC2_CH5 GPIO12 | | GPIO2 ADC2_CH2 TOUCH2 RTC_GPIO12
RTC_GPIO14 HSPI_MOSI TOUCH4 ADC2_CH4 GPIO13 | | GPIO15 ADC2_CH3 TOUCH3 HSPI_CS0 RTC_GPIO13
SHD/SD2 GPIO9 | | GPIO0 ADC2_CH1 TOUCH1 RTC_GPIO11
SWP/SD3 GPIO10 | | GPIO8 SDI/SD1
CSC/CMD GPIO11 | | GPIO7 SDO/SD0
GND | | GPIO6 SCK/CLK
VIN +------+ 3V3
NODEMCU ESP-32S
3V3 +------+ GND
EN_RESET | | GPIO23 VSPI_MOSI
RTC_GPIO0 SENSOR_VP ADC1_CH0 GPIO36 | | GPIO22 I2C_SCL
RTC_GPIO3 SENSOR_VN ADC1_CH3 GPIO39 | | GPIO1 UART0_TX
RTC_GPIO4 ADC1_CH6 GPIO34 | | GPIO3 UART0_RX
RTC_GPIO5 ADC1_CH7 GPIO35 | | GPIO21 I2C_SDA
RTC_GPIO9 TOUCH9 ADC1_CH4 GPIO32 | | GND
RTC_GPIO8 TOUCH8 ADC1_CH5 GPIO33 | | GPIO19 VSPI_MISO
RTC_GPIO6 DAC1 ADC2_CH8 GPIO25 | | GPIO18 VSPI_CLK
RTC_GPIO7 DAC2 ADC2_CH9 GPIO26 | | GPIO5 VSPI_CS0
RTC_GPIO17 TOUCH7 ADC2_CH7 GPIO27 | | GPIO17 UART2_TX
RTC_GPIO16 HSPI_CLK TOUCH6 ADC2_CH6 GPIO14 | | GPIO16 UART2_RX
RTC_GPIO15 HSPI_MISO TOUCH5 ADC2_CH5 GPIO12 | | GPIO4 ADC2_CH0 TOUCH0 RTC_GPIO10
GND | | GPIO0 ADC2_CH1 TOUCH1 RTC_GPIO11
RTC_GPIO14 HSPI_MOSI TOUCH4 ADC2_CH4 GPIO13 | | GPIO2 ADC2_CH2 TOUCH2 HSPI_CS0 RTC_GPIO12
SHD/SD2 GPIO9 | | GPIO15 ADC2_CH3 TOUCH3 RTC_GPIO13
SWP/SD3 GPIO10 | | GPIO8 SDI/SD1
CSC/CMD GPIO11 | | GPIO7 SDO/SD0
VIN +------+ GPIO6 SCK/CLK
