HardLabs

ESP-USB

Lumethra·ESP-USB·PCB_V3/ESP-USB.kicad_pcb

ESP-USB PCB layout, top view — open source ESP32 board by Lumethra

About the ESP-USB PCB

ESP-USB is an open source ESP32 PCB design by Lumethra, published on GitHub. It is a 2-layer board measuring 20.1 × 62.5 mm, with 36 components from 25 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the 74LVC1G3157DW-7, DW01A, MCP73831T-2ACI/OT, MT3608 and AMS1117-3.3. By type, the board carries 12 resistors, 7 ICs, 7 capacitors, 3 diodes, 2 switches and 1 transistor.

From the project

- adding USB-A - changing to a cheaper RGB-LED - meaning you can try solder the wroom yourself and get economics PCBA

Main components on the ESP-USB

ESP32-S3-WROOM-1-N16R874LVC1G3157DW-7DW01AMCP73831T-2ACI/OTMT3608AMS1117-3.3

ESP-USB bill of materials (BOM)

36 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N16R8
ESP32-S3-WROOM-1
ESPRESSIF(乐鑫)
U1
2
74LVC1G3157DW-7
DIODES(美台)
U2, U3
1
DW01A
DW01A_C351410
PUOLOP(迪浦)
U4
1
MCP73831T-2ACI/OT
MICROCHIP(美国微芯)
U5
1
MT3608
西安航天民芯
U6
1
AMS1117-3.3
AMS
U7
1
FS8205A
FS8205A_C2830320
TECH PUBLIC(台舟)
Q1
1
S2B-PH-SM4-TB(LF)(SN)
S2B-PH-SM4-TB
JST
CN1
1
C318884
RST
SW1
1
C318884
BOOT
SW2
1
TYPE-C 16PIN 2MD(073)
TYPE-C 16PIN 2MD
SHOU HAN(首韩)
USB1
1
USB-212-BCW
XUNPU(讯普)
USB2
1
SK6812
WS2812B
D1
2
C2480
D_Schottky
D2, D3
1
4.7UH
4.7uH
L1
2
100NF
100nF
C1, C2
1
22UF
22uF
C3
2
10UF
10uF
C4, C5
2
4.7UF
4.7uF
C9, C10
4
5.1K
5.1k
R1, R4, R6, R13
Show 5 more
QtyPartRefs
2
56K
56k
R2, R3
1
100
R7
3
1k
R8, R9, R10
1
100K
100k
R11
1
33K
33k
R12

ESP-USB design files

The KiCad project lives in the Lumethra/ESP-USB repository on GitHub; these links point at the commit this page was built from.

ESP-USB: common questions

What microcontroller does the ESP-USB use?

The ESP-USB is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the ESP-USB PCB?

The ESP-USB measures 20.1 × 62.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP-USB?

36 components, from 25 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 ESP-USB design files?

From the Lumethra/ESP-USB 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 ESP-USB design in my own project?

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

Can I test firmware for the ESP-USB 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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