Ai-Thinker Technology ESP32-A1S - Pin Function; Pin Diagram; Pin Function Definition

ESP32-A1S SoC module
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2. Pin function
ESP32-A1S module is connected to 38 interfaces, table 2.1 and table 2.2 is the interface definition.
table 2.1 ESP32-A1S Pin diagram
table 2.2 pin function definition
No.
Pin
Function Description
1
GND
Ground
2
3V3
3.3V power supply（VDD）; The output current of the external power
supply is recommended to be above 500mA
3
SENSOR_VN
GPI39,SENSOR_VN,ADC1_CH3,ADC_H,RTC_GPIO3
4
SENSOR_VP
GPI36,SENSOR_VP,ADC_H,ADC1_CH0,RTC_GPIO0
5
IO34
GPI34,ADC1_CH6,RTC_GPIO4
6
IO0
GPIO0, ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1,
EMAC_TX_CLK
7
IO14
GPIO14, ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
HS2_CLK, SD_CLK, EMAC_TXD2
8
IO12
GPIO12, ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI, HSPIQ,
HS2_DATA2, SD_DATA2, EMAC_TXD3
9
IO13
GPIO13, ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID,
HS2_DATA3, SD_DATA3, EMAC_RX_ER
10
IO15
GPIO15, ADC2_CH3, TOUCH3, MTDO, HSPICS0, RTC_GPIO13,
HS2_CMD, SD_CMD, EMAC_RXD3
11
IO2
GPIO2, ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP,
HS2_DATA0, SDS_DATA0