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Nsec badge-2025-baseboard

nsec·nsec-badge·hw/2025/baseboard-with-esp32/nsec-badge-2025-baseboard.kicad_pcb

Nsec badge-2025-baseboard PCB layout, top view — open source ESP32 board by nsec
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About the Nsec badge-2025-baseboard PCB

Nsec badge-2025-baseboard is an open source ESP32 PCB design by nsec, published on GitHub under the MIT license. It is a 2-layer board measuring 150 × 70 mm, with 42 components from 22 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AP2112K-3_3TRG1, TYPE-C-31-M-12, TPSMF05CT1G, GT-TC018A-H0375-L1 and XDWF-0920-02P. By type, the board carries 12 resistors, 9 ICs, 9 capacitors, 5 diodes, 4 LEDs and 1 connector.

It belongs with the iot & wireless and wearables designs in this gallery.

From the project

Software from the NorthSec badge

Brought to you by the Team badge of NorthSec.

The NorthSec 2025 badge is loosely based on the ESP32-C3 design with an ESP32-C3 microcontroller (ESP32-C3-WROOM-02-N4) which is used to drive several periphery devices:

- Eighteen NeoPixel RGB LEDs - Five buttons - One IR 'pairing' connector - Two Shitty Add-On V1.69bis connector

The badge is powered through a USB-C port or through 3 AAA batteries.

Main components on the Nsec badge-2025-baseboard

ESP32-S3-WROOM-1AP2112K-3_3TRG1TYPE-C-31-M-12TPSMF05CT1GGT-TC018A-H0375-L1XDWF-0920-02PXT4054K421MR-GK2-1102SP-Z4SC-04

Nsec badge-2025-baseboard bill of materials (BOM)

42 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1
U1
1
AP2112K-3_3TRG1
U2
1
TYPE-C-31-M-12
U3
1
TPSMF05CT1G
U4
2
GT-TC018A-H0375-L1
U5, U6
1
XDWF-0920-02P
U7
1
XT4054K421MR-G
U8
1
K2-1102SP-Z4SC-04
U9
1
BUS_PCI_32BIT_UNIVERSAL
Bus_PCI_32bit_Universal
J5
2
SSSS811101
KEY1, KEY2
4
LTST-S220KRKT
LED1, LED2, LED3, LED4
4
MBR120LSF
D1, D2, D3, D5
1
WS2812B
D4
4
1UF
1uF
C1, C3, C6, C9
3
10UF
10uF
C2, C4, C8
1
0.1UF
0.1uF
C5
1
4.7UF
4.7uF
C7
4
5.1K
R1, R3, R4, R5
2
100K
R2, R11
1
10K
R6
Show 2 more
QtyPartRefs
4
1K
R7, R8, R9, R12
1
390K
R10

Nsec badge-2025-baseboard design files

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

Nsec badge-2025-baseboard: common questions

What microcontroller does the Nsec badge-2025-baseboard use?

The Nsec badge-2025-baseboard is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the Nsec badge-2025-baseboard PCB?

The Nsec badge-2025-baseboard measures 150 × 70 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nsec badge-2025-baseboard?

42 components, from 22 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 Nsec badge-2025-baseboard design files?

From the nsec/nsec-badge 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 Nsec badge-2025-baseboard design in my own project?

Yes, under the terms of its MIT license, which nsec chose for the repository.

Can I test firmware for the Nsec badge-2025-baseboard 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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