User's Manual

ESP-32S User Manual
Shenzhen Ai-Thinker Technology Co., Ltd http://www.ai-thinker.com
Interface
Signal
Pin
Function
SD/SDIO/MMC Host
HS2_CLK
MTMS
Supports SD memory card V3.01 standard
HS2_CMD
MTDO
HS2_DATA0
IO2
HS2_DATA1
IO4
HS2_DATA2
MTDI
HS2_DATA3
MTCK
Motor PWM
PWMO_OUTO~2
Any GPIOs*
Three channels of 16-bit timers generate
PWM1_OUT_INO~2
PWM0_FLT_IN0~2
PWM1_FLT_IN0~2
PWM0_CAP_IN0~2
PWM1_CAP_IN0~2
PWM0_SYNC」N0~2
PWM1_SYNC」N0~2
LED PWM
ledc_hs_sig_out0~7
Any GPIOs*
16 independent channels @80MHz
Iedc_Is_sig_out0~7
UART
U0RXD_in
Any GPIOs*
Two UART devices with hardware
U0CTS_in
U0DSR_in
U0TXD_out
U0RTS_out
U0DTR_out
U1RXD_in
U1CTS_in
U1TXD_out
U1RTS_out
U2RXD_in
U2CTS_in
U2TXD_out
U2RTS_out
I2C
I2CEXT0_SCL_in
Any GPIOs*
Two I2C devices in slave or master modes
I2CEXT0_SDA_in
I2CEXT1_SCL_in
I2CEXT1_SDA_in
I2CEXT0_SCL_out
I2CEXT0_SDA_out
I2CEXT1_SCL_out
I2CEXT1_SDA_out