1 Overview
Name
No.
IO0
12
IO1
13
NC
15
IO10
16
NC
17
IO4
18
IO5
19
IO6
20
IO7
21
IO8
22
IO9
23
NC
24
NC
25
IO18
26
IO19
27
NC
28
NC
29
RXD0
30
TXD0
31
NC
32
NC
33
NC
34
NC
35
Espressif Systems
Table 2 – cont'd from previous page
Type
Function
I/O/T
GPIO0, ADC1_CH0, XTAL_32K_P
I/O/T
GPIO1, ADC1_CH1, XTAL_32K_N
—
NC
I/O/T
GPIO10, FSPICS0
—
NC
I/O/T
GPIO4, ADC1_CH4, FSPIHD, MTMS
I/O/T
GPIO5, ADC2_CH0, FSPIWP, MTDI
I/O/T
GPIO6, FSPICLK, MTCK
I/O/T
GPIO7, FSPID, MTDO
I/O/T
GPIO8
I/O/T
GPIO9
—
NC
—
NC
I/O/T
GPIO18
I/O/T
GPIO19
—
NC
—
NC
I/O/T
GPIO20, U0RXD,
I/O/T
GPIO21, U0TXD
—
NC
—
NC
—
NC
—
NC
6
ESP32-C3-MINI-1U User Manual v0.1
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