Espressif Systems ESP32--C3--MINI--1, User Manual, Page: 5 / 16

1 Overview
1.2 Pin Description
Pin 49
GND
GND GND GND
GND GND
GND GND GND
Pin 1
Pin 2
Pin 3
Pin 4
Pin 6
Pin 5
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 53
GND
Pin 52
GND
Pin 12 Pin 13 Pin 14 Pin 15 Pin 16 Pin 17 Pin 18 Pin 19 Pin 20 Pin 21 Pin 22 Pin 23 Pin 24
Pin 25
Pin 51
GND
Pin 26
Pin 27
Pin 28
Pin 29
Pin 30
Pin 31
Pin 32
Pin 33
Pin 34
Pin 35
Pin 50
GND
Pin 36 Pin 37 Pin 38 Pin 39 Pin 40 Pin 41 Pin 42 Pin 43 Pin 44 Pin 45 Pin 46 Pin 47 Pin 48
GND
GND
3V3
NC
IO2
IO3
NC
EN
NC
NC
GND
IO0
IO1
GND
NC
IO10
NC
IO4 IO5 IO6 IO7 IO8 IO9
NC
NC
IO18
IO19
NC
NC
RXD0
TXD0
NC
NC
NC
NC
GND GND GND GND GND GND GND GND GND GND GND GND GND
Keepout Zone
Figure 1: Pin Layout (Top View)
The module has 53 pins. See pin definitions in Table 2 .
For peripheral pin configurations, please refer to ESP32-C3 Family Datasheet .
Table 2: Pin Definitions
Name No. Type Function
GND 1, 2, 11, 14, 36-53 P Ground
3V3 3 P Power supply
NC 4 — NC
IO2 5 I/O/T GPIO2, ADC1_CH2, FSPIQ
IO3 6 I/O/T GPIO3, ADC1_CH3
NC 7 — NC
EN 8 I
High: on, enables the chip.
Low: off, the chip powers off.
Note: Do not leave the EN pin floating.
NC 9 — NC
NC 10 — NC
Cont’d on next page
Espressif Systems 5
ESP32-C3-MINI-1 User Manual v0.1