Espressif ESP32-­MINI-­1 - Page 6

1 Overview
Table 12 – cont’d from previous page
Name No. Type Function
IO22 33 I/O GPIO22, VSPIWP, U0RTS, EMAC_TXD1
IO21 34 I/O GPIO21, VSPIHD, EMAC_TX_EN
RXD0 35 I/O GPIO3, U0RXD, CLK_OUT2
TXD0 36 I/O GPIO1, U0TXD, CLK_OUT3, EMAC_RXD2
NC 37 - No connect
1
Pins GPIO6, GPIO7, GPIO8, GPIO11, GPIO16, and GPIO17 on the ESP32-U4WDH chip are connected to the
SPI flash integrated on the module and are not led out.
2
For peripheral pin configurations, please refer to ESP32 Series Datasheet.
Espressif Systems 6 ESP32-MINI-1 User Manual (Preliminary v0.1)