HardLabs

ESP32-Mini-Dev-Board

divyansh404-sudo·ESP32-Mini-Dev-Board

ESP32-Mini-Dev-Board layout, top view — open source ESP32 board by divyansh404-sudo

About the ESP32-Mini-Dev-Board

ESP32-Mini-Dev-Board is an open source ESP32 PCB design by divyansh404-sudo, published on GitHub under the MIT license. It is a 2-layer board measuring 67 × 58 mm, with 36 components from 20 distinct parts.

Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the CP2102N-Axx-xQFN20, CH224K and AP2112K-3.3. By type, the board carries 12 resistors, 10 capacitors, 5 diodes, 4 ICs, 2 transistors and 2 switches.

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

From the project

A high-performance embedded development board with complete hardware design workflow, from schematic to manufacturable PCB

A high-performance embedded development board with complete hardware design workflow, from schematic to manufacturable PCB

Introduction • Features • Design • Manufacturing • Resources

The ESP32 Mini Dev Board is a custom-designed embedded hardware platform that demonstrates professional PCB design practices, USB-C integration, power integrity, RF-aware layout, and manufacturable routing techniques.

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

Main components on the ESP32-Mini-Dev-Board

CP2102N-Axx-xQFN20CH224KESP32-WROOM-32EAP2112K-3.3

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

36 components, 20 distinct parts.

QtyPartRefs
1
CP2102N-Axx-xQFN20
U1
1
CH224K
U2
1
ESP32-WROOM-32E
U3
1
AP2112K-3.3
U4
2
MMBT3904
Q1, Q2
1
Polyfuse
F1
1
Reset
SW1
1
Boot
SW2
1
D_TVS
D1
4
LED
D2, D3, D4, D6
2
4.7u
C2, C3
6
0.1u
C4, C6, C7, C8, C9, C10
1
1u
C5
1
10u
C12
2
5.1k
R1, R2
3
100k
R4, R8, R9
1
1k
R5
3
10k
R6, R7, R13
1
330
R10
2
470
R11, R12

ESP32-Mini-Dev-Board design files

The KiCad project lives in the divyansh404-sudo/ESP32-Mini-Dev-Board repository on GitHub; these links point at the commit this page was built from.

ESP32-Mini-Dev-Board: common questions

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

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

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

The ESP32-Mini-Dev-Board measures 67 × 58 mm, has 2 copper layers and is 1.6 mm thick.

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

36 components, from 20 distinct parts. The full bill of materials is listed on this page.

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

From the divyansh404-sudo/ESP32-Mini-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 ESP32-Mini-Dev-Board design in my own project?

Yes, under the terms of its MIT license, which divyansh404-sudo chose for the repository.

Can I test firmware for the ESP32-Mini-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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