HardLabs

Esp32c3

souptik-samanta·esp32c3·PCB/esp.kicad_pcb

Esp32c3 PCB layout, top view — open source ESP32 board by souptik-samanta

About the Esp32c3 PCB

Esp32c3 is an open source ESP32 PCB design by souptik-samanta, published on GitHub. It is a 4-layer board measuring 40.8 × 20 mm, with 47 components from 23 distinct parts.

Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the W25Q128JVP, USBLC6-2P6, MS5611-01BA, SPX3819M5-L-3-3 and SHTC3. By type, the board carries 21 capacitors, 9 resistors, 6 ICs, 3 inductors, 2 connectors and 2 switches.

It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.

From the project

A compact, custom-designed ESP32-C3 development board with USB-C connectivity, onboard antenna, and a clean PCB layout.

A compact, custom-designed ESP32-C3 development board with USB-C connectivity, onboard antenna, and a clean PCB layout.

The board features a USB-C connector on the left side, two tactile switches (BOOT and EN), the ESP32-C3 QFN package at the center-right, a PCB trace antenna on the far right, and a 4-pin UART header (3V3, RXD, TXD, GND) along the bottom edge. All passives are 0402/0603 for a tight layout. with onboard temp humidity barometer and pressure ---

Esp32c3, from the project README
From the project README

Main components on the Esp32c3

ESP32-C3W25Q128JVPUSBLC6-2P6MS5611-01BASPX3819M5-L-3-3SHTC3

Esp32c3 bill of materials (BOM)

47 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3
U1
1
W25Q128JVP
U2
1
USBLC6-2P6
U3
1
MS5611-01BA
U4
1
SPX3819M5-L-3-3
U5
1
SHTC3
U6
1
CRYSTAL_GND24
Crystal_GND24
Y2
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J1
1
CONN_01X04_PIN
Conn_01x04_Pin
J2
1
Antenna_Shield
AE1
1
RESET
SW1
1
BOOT
SW2
2
TestPoint
TP1, TP3
3
2.2NH
2.2nH
L1, L2, L3
2
27PF
27pF
C1, C2
4
10U
10u
C3, C7, C14, C15
5
100N
100n
C4, C5, C6, C8, C9
7
100N
100n
C10, C11, C12, C13, C16, C18, C19
1
2.2U
2.2u
C17
2
3.3PF
3.3pF
C20, C21
Show 3 more
QtyPartRefs
1
22
R1
6
5.1K
R2, R5, R6, R7, R8, R9
2
470
R3, R4

Esp32c3 design files

The KiCad project lives in the souptik-samanta/esp32c3 repository on GitHub; these links point at the commit this page was built from.

Esp32c3: common questions

What microcontroller does the Esp32c3 use?

The Esp32c3 is built around the ESP32-C3, from the ESP32 family.

How big is the Esp32c3 PCB?

The Esp32c3 measures 40.8 × 20 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Esp32c3?

47 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Esp32c3 design files?

From the souptik-samanta/esp32c3 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Esp32c3 design in my own project?

The repository has no license, so all rights stay with souptik-samanta. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 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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