ESP32 datasheet(39/64 Pages) ESPRESSIF

39 / 64 page

4. Peripherals and Sensors

Interface

Signal

Function

LED PWM

ledc_hs_sig_out0

Any GPIO Pins

16 independent channels @80 MHz

clock/RTC CLK. Duty accuracy: 16 bits.

ledc_ls_sig_out0

I2S

I2S0I_DATA_in0

~15

Any GPIO Pins

Stereo input and output from/to the audio

codec; parallel LCD data output; parallel

camera data input

I2S0O_BCK_in

I2S0O_WS_in

I2S0I_BCK_in

I2S0I_WS_in

I2S0I_H_SYNC

I2S0I_V_SYNC

I2S0I_H_ENABLE

I2S0O_BCK_out

I2S0O_WS_out

I2S0I_BCK_out

I2S0I_WS_out

I2S0O_DATA_out0

~23

I2S1I_DATA_in0

~15

I2S1O_BCK_in

I2S1O_WS_in

I2S1I_BCK_in

I2S1I_WS_in

I2S1I_H_SYNC

I2S1I_V_SYNC

I2S1I_H_ENABLE

I2S1O_BCK_out

I2S1O_WS_out

I2S1I_BCK_out

I2S1I_WS_out

I2S1O_DATA_out0

~23

Infrared Remote

Controller

RMT_SIG_IN0

Any GPIO Pins

Eight channels for an IR transmitter and

receiver of various waveforms

RMT_SIG_OUT0

General Purpose

SPI

HSPIQ_in/_out

Any GPIO Pins

Standard SPI consists of clock,

chip-select, MOSI and MISO. These SPIs

can be connected to LCD and other

external devices. They support the

following features:

• Both master and slave modes;

• Four sub-modes of the SPI transfer

format;

• Configurable SPI frequency;

• Up to 64 bytes of FIFO and DMA.

HSPID_in/_out

HSPICLK_in/_out

HSPI_CS0_in/_out

HSPI_CS1_out

HSPI_CS2_out

VSPIQ_in/_out

VSPID_in/_out

VSPICLK_in/_out

VSPI_CS0_in/_out

VSPI_CS1_out

VSPI_CS2_out

Espressif Systems

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ESP32 Datasheet V3.4

ESP32 Datasheet(PDF) 39 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

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