ESP32-C3 Guide


I’ll research Espressif’s primary documentation and distributor listings, then write a cited application guide covering pin connections, boot requirements, layout, alternatives, and sourcing.
Espressif’s current datasheet marks this ordering code as not recommended for new designs and recommends the newer revision. I’ve verified the pinout and boot wiring; I’m finishing the guide with compatibility caveats and explicit labels for any unresolved specifications.
Created a project doc

ESP32-C3-MINI-1-N4 Application and Usage Guide

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ESP32-C3-MINI-1-N4 Application and Usage Guide
The ESP32-C3-MINI-1-N4 is an Espressif surface-mount wireless microcontroller module with a 32-bit single-core RISC-V processor operating up to 160 MHz, 4 MB Quad-SPI flash, and 2.4 GHz 802.11b/g/n Wi-Fi plus Bluetooth 5 LE connectivity. Its common use is a compact standalone IoT sensor or controller, using the module’s integrated PCB antenna and GPIO interfaces rather than a separate application processor.
Lifecycle alert: The exact -N4 ordering code is NRND (Not Recommended for New Designs), with chip revision v0.4; Espressif recommends ESP32-C3-MINI-1-N4X, with chip revision v1.1.[^flux:cite:src_page_3_1_2_serie...
Created the cited ESP32-C3-MINI-1-N4 Application and Usage Guide, covering all seven requested sections. It flags the -N4 ordering code as NRND, distinguishes functional alternatives from drop-in replacements, and explicitly marks unresolved pitch and equivalence details; no schematic or PCB changes were made.

GND
GND
GND
GND
GND
GND
TXD0
NC
GND
GND
NC
NC
GND
IO5
GND
GND
IO4
GND
GND
IO6
GND
GND
GND
GND
GND
RXD0
GND
NC
GND
IO19
GND
NC
NC
NC
NC
GND
GND
NC
NC
GND
GND
NC
GND
GND
GND
NC
IO18
NC
NC
GND
GND
Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
GND
1
Power In
GND
Left
100
GND
2
Power In
GND
Left
100
3V3
3
Power In
Power
Top
10
NC
4
Not Connected
NC
80
IO2
5
Bi-Directional
GPIO
30
IO3
6
Bi-Directional
GPIO
30
NC
7
Not Connected
NC
80
EN
8
Input
ENABLE / RESET
20
NC
9
Not Connected
NC
80
NC
10
Not Connected
NC
80
GND
11
Power In
GND
Right
100
IO0
12
Bi-Directional
GPIO
30
IO1
13
Bi-Directional
GPIO
30
GND
14
Power In
GND
Left
100
NC
15
Not Connected
NC
80
IO10
16
Bi-Directional
GPIO
30
NC
17
Not Connected
NC
80
IO4
18
Bi-Directional
JTAG
40
IO5
19
Bi-Directional
JTAG
40
IO6
20
Bi-Directional
JTAG
40
IO7
21
Bi-Directional
JTAG
40
IO8
22
Bi-Directional
GPIO
30
IO9
23
Bi-Directional
GPIO
30

ESP32-C3-MINI-1-N4