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Esp32-iot-4layer

ODARI-CHARLES1·esp32-iot-4layer-pcb

Esp32-iot-4layer PCB layout, top view — open source ESP32 board by ODARI-CHARLES1

About the Esp32-iot-4layer PCB

Esp32-iot-4layer is an open source ESP32 PCB design by ODARI-CHARLES1, published on GitHub. It is a 4-layer board measuring 88.2 × 56.4 mm, with 79 components from 36 distinct parts.

Its main chip is the ESP32-C3-WROOM-02, from the ESP32 family. Other key parts include the MCP73871, USBLC6-2SC6, CP2102N-Axx-xQFN20, W25Q16JVSS and BME280. By type, the board carries 32 resistors, 21 capacitors, 7 ICs, 6 LEDs, 5 connectors and 3 transistors.

It belongs with the iot & wireless, power & battery and sensors designs in this gallery.

From the project

This project focuses on the design and development of a 4-layer PCB for an ESP32-based IoT device. The goal is to create a compact, robust, and EMI-optimized PCB layout suitable for IoT applications.

This project focuses on the design and development of a 4-layer PCB for an ESP32-based IoT device. The goal is to create a compact, robust, and EMI-optimized PCB layout suitable for IoT applications.

- Microcontroller: ESP32-WROOM-32 (or compatible module) - PCB Layers: 4 (Signal–Ground–Power–Signal stackup) - Purpose: General-purpose IoT hardware platform for prototyping and deployment - Tools Used: KiCad (v6/v7), Git for version control

Esp32-iot-4layer, from the project README
From the project README

Main components on the Esp32-iot-4layer

MCP73871USBLC6-2SC6ESP32-C3-WROOM-02CP2102N-Axx-xQFN20W25Q16JVSSBME280MAX4466EXK

Esp32-iot-4layer bill of materials (BOM)

79 components, 36 distinct parts.

QtyPartRefs
1
MCP73871
U1
1
USBLC6-2SC6
U2
1
ESP32-C3-WROOM-02
U3
1
CP2102N-Axx-xQFN20
U4
1
W25Q16JVSS
U5
1
BME280
U6
1
MAX4466EXK
U7
1
TEMT6000X01
Q1
2
BC817
Q2, Q3
1
SS-52400-003
Stewart Connector
J1
1
B2B-PH-K-S_LF__SN_
J2
1
GSD090012SEU
J3
1
Conn_01x04_Pin
J4
1
Conn_01x05_Pin
J5
1
Polyfuse_Small
F1
1
CMC-5042PF-AC
MK1
2
USLPT2819DT2TR
S1, S2
1
LM1117MPX-3.3/NOPB
LM1117MPX-3.3_NOPB
Texas Instruments
VR1
4
LTST-C170KGKT
LED1, LED2, LED5, LED6
2
LTST-C170KRKT
LED3, LED4
Show 16 more
QtyPartRefs
13
0.1u
C1, C2, C5, C6, C8, C10, C13, C14 +5
4
10u
C3, C4, C7, C12
1
4.7u
C9
2
1u
C11, C22
1
10n
C17
6
470R
R1, R2, R9, R10, R14, R18
2
5K1
R3, R4
10
10K
R5, R6, R7, R8, R19, R23, R30, R32 +2
1
1k
R11
1
22.1K
R12
1
47K5
R13
4
50
R15, R16, R20, R22
2
4K7
R24, R25
2
2K
R26, R28
2
1M
R27, R29
1
100K
R31

Esp32-iot-4layer design files

The KiCad project lives in the ODARI-CHARLES1/esp32-iot-4layer-pcb repository on GitHub; these links point at the commit this page was built from.

Esp32-iot-4layer: common questions

What microcontroller does the Esp32-iot-4layer use?

The Esp32-iot-4layer is built around the ESP32-C3-WROOM-02, from the ESP32 family.

How big is the Esp32-iot-4layer PCB?

The Esp32-iot-4layer measures 88.2 × 56.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Esp32-iot-4layer?

79 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32-iot-4layer design files?

From the ODARI-CHARLES1/esp32-iot-4layer-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Esp32-iot-4layer design in my own project?

The repository has no license, so all rights stay with ODARI-CHARLES1. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Esp32-iot-4layer 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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