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Usbwledc

NandXor96·USBWLEDC·kicad/usbwledc.kicad_pcb

Usbwledc PCB layout, top view — open source ESP32 board by NandXor96
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About the Usbwledc PCB

Usbwledc is an open source ESP32 PCB design by NandXor96, published on GitHub. It is a 2-layer board measuring 30 × 35 mm, with 26 components from 18 distinct parts.

Its main chip is the C701341, from the ESP32 family. Other key parts include the C2977777 and C6186. By type, the board carries 8 connectors, 8 capacitors, 5 resistors, 3 ICs, 1 microphone and 1 switch.

From the project

USB WLED Controller

- USB-C for flashing and power (max. 3A) - Small size (30mm x 35mm) - Cheap components - GSA4737 MEMS Microphone (similar to SPM1423) - Solder Pads instead of Screw Terminal Blocks - Files for panelized version (4x4) - Files for 3D printed case - Front side can be populated by JLCPCB

To enter the Flash mode of the USBWLEDC, simply hold down the button as you connect the USB cable to a computer.

Usbwledc, from the project README
From the project README

Main components on the Usbwledc

C2977777C6186C701341

Usbwledc bill of materials (BOM)

26 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2977777
CH340N
U1
1
C6186
AMS1117-3.3
U2
1
C701341
ESP32-WROOM-32
U3
2
5V PAD
J1, J4
1
D1 PAD
J2
2
GND PAD
J3, J6
1
D2 PAD
J5
1
Accessories
J7
1
C2988369
USB_C_Receptacle_USB2.0
J10
1
C5142171
GSA4737
MK1
1
C318884
FLASH_SW
SW1
3
C14663
100nF
C1, C2, C4
3
C15850
10uF
C3, C5, C7
1
C15849
1uF
C6
1
C131115
100uF
C8
1
C25803
100k
R1
2
C25804
10k
R2, R3
2
C23186
5.1k
R4, R5

Usbwledc design files

The KiCad project lives in the NandXor96/USBWLEDC repository on GitHub; these links point at the commit this page was built from.

Usbwledc: common questions

What microcontroller does the Usbwledc use?

The Usbwledc is built around the C701341, from the ESP32 family.

How big is the Usbwledc PCB?

The Usbwledc measures 30 × 35 mm, has 2 copper layers and is 1.565 mm thick.

How many components are on the Usbwledc?

26 components, from 18 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 Usbwledc design files?

From the NandXor96/USBWLEDC 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 Usbwledc design in my own project?

The repository has no license, so all rights stay with NandXor96. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Usbwledc 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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