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Custom-ESP32-Dev-Board

Ghous-Ali·Custom-ESP32-Dev-Board·hardware/TWLOG_v1.kicad_pcb

Custom-ESP32-Dev-Board layout, top view — open source ESP32 board by Ghous-Ali

About the Custom-ESP32-Dev-Board

Custom-ESP32-Dev-Board is an open source ESP32 PCB design by Ghous-Ali, published on GitHub under the MIT license. It is a 4-layer board measuring 65.2 × 20.8 mm, with 47 components from 24 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the AMS1117-3.3 and CP2102N-Axx-xQFN28. By type, the board carries 15 resistors, 13 capacitors, 5 connectors, 5 diodes, 4 transistors and 3 ICs.

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

From the project

Custom ESP32-WROOM-32E development board | 4-layer PCB designed in KiCad 9.0.7

A from-scratch ESP32-WROOM-32E development board designed in KiCad 9.0.7 on a 4-layer PCB stackup.

- MCU: ESP32-WROOM-32E (WiFi + Bluetooth, dual-core Xtensa LX6) - USB-to-Serial: CP2102N-A02-GQFN28 with full auto-programming support (DTR/RTS via 2N7002 MOSFETs) - Power: AMS1117-3.3V LDO with 22µF + 100nF input/output filtering; external 5V input option with power path selection - ESD Protection: ESD5Zxx TVS diodes on USB D+/D- lines - User Interface: Boot button, Reset button, Power LED, User LED - I/O: Dual 17-pin headers — breadboard-compatible, exposing all usable GPIOs - RF: Antenna…

Custom-ESP32-Dev-Board, from the project README
From the project README

Main components on the Custom-ESP32-Dev-Board

AMS1117-3.3ESP32-WROOM-32ECP2102N-Axx-xQFN28

Custom-ESP32-Dev-Board bill of materials (BOM)

47 components, 24 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
ESP32-WROOM-32E
U2
1
CP2102N-Axx-xQFN28
U3
2
2N7002
Q1, Q2
2
SS8050
Q3, Q4
1
Conn_01x03_Pin
J1
1
USB_B_Micro
J2
1
Conn_01x02_Pin
J3
2
Conn_01x17_Pin
J4, J5
2
TS-1088-AR02016
S1, S2
2
LED
D1, D3
3
ESD5Zxx
D2, D4, D5
1
10uF
C1
9
100nF
C2, C4, C5, C7, C8, C9, C11, C12 +1
2
22uF
C3, C6
1
4.7uF
C10
1
5.1k
R1
2
1k
R2, R9
1
560
R3
5
10k
R4, R10, R11, R12, R13
Show 4 more
QtyPartRefs
2
22
R5, R6
1
22.1k
R7
1
47.5k
R8
2
0
R14, R15

Custom-ESP32-Dev-Board design files

The KiCad project lives in the Ghous-Ali/Custom-ESP32-Dev-Board repository on GitHub; these links point at the commit this page was built from.

Custom-ESP32-Dev-Board: common questions

What microcontroller does the Custom-ESP32-Dev-Board use?

The Custom-ESP32-Dev-Board is built around the ESP32-WROOM-32E, from the ESP32 family.

How big is the Custom-ESP32-Dev-Board?

The Custom-ESP32-Dev-Board measures 65.2 × 20.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Custom-ESP32-Dev-Board?

47 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Custom-ESP32-Dev-Board design files?

From the Ghous-Ali/Custom-ESP32-Dev-Board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Custom-ESP32-Dev-Board design in my own project?

Yes, under the terms of its MIT license, which Ghous-Ali chose for the repository.

Can I test firmware for the Custom-ESP32-Dev-Board 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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