HardLabs

XIAO ESP32C3

bombarie·jaha-koo-eel·kicad/test_xiao_esp32c3_schematic/xiao_esp32c3_schematic/XIAO ESP32C3.kicad_pcb

XIAO ESP32C3 PCB layout, top view — open source ESP32 board by bombarie

About the XIAO ESP32C3 PCB

XIAO ESP32C3 is an open source ESP32 PCB design by bombarie, published on GitHub under the CC-BY-NC-4.0 license. It is a 4-layer board measuring 21 × 17.8 mm, with 67 components from 33 distinct parts.

Its main chip is the ESP32-C3FN4, from the ESP32 family. Other key parts include the XC6210B332MR. By type, the board carries 28 capacitors, 14 resistors, 6 test points, 3 ICs, 2 crystals and 2 connectors.

Main components on the XIAO ESP32C3

XC6210B332MRESP32-C3FN4

XIAO ESP32C3 bill of materials (BOM)

67 components, 33 distinct parts.

QtyPartRefs
1
—
U1
1
XC6210B332MR
U2
1
ESP32-C3FN4
U4
1
LP0404N3T5G
Q1
1
32.768k/9KAA32768122TF90QT
X2
1
40MHz/306011037
X4
2
DNP
J1, J2
1
U.FL-R-SMT-1
ANT0
2
DNP
BAT0, GND0
2
TD-1183SN-A3N-D1R
BOOT0, RST0
1
6V_500mA_Fuse
F1
6
DNP
TP1, TP2, TP3, TP4, TP5, TP6
1
UBF31-0171
USB0
1
RED
CHG0
1
MSK4005
D1
2
2nH
L1, L3
7
2.2uF
C1, C4, C23, C39, C40, C43, C54
2
1uF
C2, C44
7
100nF
C3, C5, C7, C10, C45, C50, C53
1
10pF
C6
Show 13 more
QtyPartRefs
4
18pF
C8, C9, C41, C42
3
DNP
C11, C12, C13
2
1.6pF
C14, C48
2
0R
C15, C49
2
5.1k
R1, R2
2
DNP
R3, R21
2
10k
R4, R6
1
1R
R5
2
0R
R7, R32
2
22R
R8, R10
1
100k
R9
1
2.7k
R22
1
2.2k
R31

XIAO ESP32C3 design files

The KiCad project lives in the bombarie/jaha-koo-eel repository on GitHub; these links point at the commit this page was built from.

XIAO ESP32C3: common questions

What microcontroller does the XIAO ESP32C3 use?

The XIAO ESP32C3 is built around the ESP32-C3FN4, from the ESP32 family.

How big is the XIAO ESP32C3 PCB?

The XIAO ESP32C3 measures 21 × 17.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the XIAO ESP32C3?

67 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the XIAO ESP32C3 design files?

From the bombarie/jaha-koo-eel repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the XIAO ESP32C3 design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the XIAO ESP32C3 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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