User's Manual
Table Of Contents
1 Overview
Table 2 – cont’d from previous page
Name No. Type Function
TXD0 12 I/O/T U0TXD, GPIO21
IO18 13 — GPIO18, USB_D-
IO19 14 I/O/T GPIO19, USB_D+
IO3 15 I/O/T GPIO3, ADC1_CH3
IO2 16 I/O/T GPIO2, ADC1_CH2, FSPIQ
IO1 17 I/O/T GPIO1, ADC1_CH1, XTAL_32K_N (32.768 kHz crystal output)
IO0 18 I/O/T GPIO0, ADC1_CH0, XTAL_32K_P (32.768 kHz crystal input)
Espressif Systems 6 ESP32-C3-WROOM-02 User Manual v0.1