Schematic Diagram - Ai-Thinker ESP32-A1S Specification

36
37
38
PIN
GPIO 0
GPIO 2
Note: Some pins have been internally pulled up, please refer to the schematic

5. Schematic diagram

5.1. Module schematic
C
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TXD0 GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2
RXD0 GPIO3, U0RXD, CLK_OUT2
GND Grounded
List 9 Module startup mode description
System startup mode
Default
pull up
drop down
ESP32-A1S Specification V2.3
SPI boot mode
1
Irrelevant
Download start
mode
0
0
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