This is an old revision of the document!


Espressif Systems ESP32

esp32-top.jpg

esp32-bottom.jpg

The Espressif Systems ESP32 is used in cheap WiFi modules. It embeds an Xtensa LX6 CPU.

Pinout

ESP DEVKIT V1
                                            +------+
           EN                               |  15  | GPIO23                 VSPI_MOSI
RTC_GPIO0  SENSOR_VP        ADC1_CH0 GPIO36 |  14  | GPIO22                 I2C_SCL
RTC_GPIO3  SENSOR_VN        ADC1_CH3 GPIO39 |  13  | GPIO1                  UART0_TX
RTC_GPIO4  VDET1            ADC1_CH6 GPIO34 |  12  | GPIO3                  UART0_RX
RTC_GPIO5  VDET2            ADC1_CH7 GPIO35 |  11  | GPIO21                 I2C_SDA
RTC_GPIO9  XTAL_32K  TOUCH9 ADC1_CH4 GPIO32 |  10  | GPIO19                 VSPI_MISO
RTC_GPIO8  XTAL_32K  TOUCH8 ADC1_CH5 GPIO33 |  9   | GPIO18                 VSPI_CLK
RTC_GPIO6  DAC1             ADC2_CH8 GPIO25 |  8   | GPIO5                  VSPI_CS0
RTC_GPIO7  DAC2             ADC2_CH9 GPIO26 |  7   | GPIO17                 UART2_TX
RTC_GPIO17           TOUCH7 ADC2_CH7 GPIO27 |  6   | GPIO16                 UART2_RX
RTC_GPIO16 HSPI_CLK  TOUCH6 ADC2_CH6 GPIO14 |  5   | GPIO4  ADC2_CH0 TOUCH0            RTC_GPIO10
RTC_GPIO15 HSPI_MISO TOUCH5 ADC2_CH5 GPIO12 |  4   | GPIO2  ADC2_CH2 TOUCH2            RTC_GPIO12
RTC_GPIO14 HSPI_MOSI TOUCH4 ADC2_CH4 GPIO13 |  3   | GPIO15 ADC2_CH3 TOUCH3 HSPI_CS0   RTC_GPIO13
           GND                              |  2   |                        GND
           VIN                              |  1   |                        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            RTC_GPIO12
           UART1_RX                   GPIO9 |      | GPIO15 ADC2_CH3 TOUCH3 HSPI_CS0   RTC_GPIO13
           UART1_TX                  GPIO10 |      | GPIO8
                                     GPIO11 |      | GPIO7
           VIN                              |      | GPIO6
                                            +------+

Resources

This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.More information about cookies