Ai-Thinker Technology ESP32-A1S User Manual

ESP32-A1S SoC module
Page
9
of 18
Copyright © 2020 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved
12
IO4
GPIO4,ADC2_CH0,TOUCH0, RTC_GPIO10, HSPIHD, HS2_DATA1,
SD_DATA1, EMAC_TX_ER
13
HBIAS
MIC2 control pin
14
MIC2N
MIC2 input
15
MIC2P
MIC2 input
16
MBIAS
MIC1 control pin
17
MIC1P
MIC1 input
18
MIC1N
MIC1 input
19
GND
Ground
20
GND
Ground
21
LINEINR
Headphone input
22
LINEINL
Headphone input
23
SPORP
Speaker right channel output
24
SPORN
Speaker right channel output
25
SPOLP
Speaker left channel output
26
SPOLN
Speaker left channel output
27
HPOUTL
Headphone output
28
HPOUTR
Headphone output
29
IO5
GPIO5,VSPICS0,HS1_DATA6,EMAC_RX_CLK
30
IO18
GPIO18,VSPICLK,HS1_DATA7
31
IO23
GPIO23,VSPID,HS1_STROBE
32
IO19
GPIO19,VSPIQ,U0CTS,EMAC_TXD0
33
IO22
GPIO22,VSPIWP,U0RTS,EMAC_TXD1
34
IO21
GPIO21,VSPIHD,EMAC_TX_EN
35
EN
Enable chip, active high
36
TXD0
GPIO1,U0TXD,CLK_OUT3,EMAC_RXD2
37
RXD0
GPIO3,U0RXD,CLK_OUT2
38
GND
Ground

Ai-Thinker Technology ESP32-A1S Specifications

General

Brand	Ai-Thinker Technology
Model	ESP32-A1S
Category	Control Unit
Language	English