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WLED Matrix

CDFER·Business-Cards·WLED_Matrix/PCB/WLED Matrix.kicad_pcb

WLED Matrix PCB layout, top view — open source ESP32 board by CDFER
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About the WLED Matrix PCB

WLED Matrix is an open source ESP32 PCB design by CDFER, published on GitHub under the Custom license license. It is a 2-layer board measuring 93 × 32 mm, with 135 components from 34 distinct parts.

Its main chip is the ESP32-C3FH4, from the ESP32 family. Other key parts include the SM4007PL. By type, the board carries 70 LEDs, 25 capacitors, 22 resistors, 6 switches, 5 inductors and 2 ICs.

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

From the project

Showcasing a collection of functional PCB business cards, each demonstrating a unique embedded electronics project.

The WLED Matrix is a 7x9 RGB matrix display powered by an ESP32C3 microcontroller, featuring a compact design and vibrant colours.

Display: 7x9 RGB matrix (63 LEDs + 1 level shifter LED) Microcontroller: ESP32C3 (RISC-V single-core, 160 MHz) LED IC**: XL-1615RGBC-WS2812B

CPU: RISC-V single-core, 160 MHz Wireless: 2.4 GHz Wi-Fi (802.11b/g/n) and Bluetooth 5 (LE) Flash: 4 MB internal Flash Package: QFN32 (5x5 mm)

WLED Matrix, from the project README
From the project README

Main components on the WLED Matrix

SM4007PLESP32-C3FH4

WLED Matrix bill of materials (BOM)

135 components, 34 distinct parts.

QtyPartRefs
1
SM4007PL
U1
1
ESP32-C3FH4
U3
1
USB_C_Receptacle
J2
1
SRV05
ESD1
1
1.5A Resettable Fuse
F1
1
LDO 3.3V 200mA XC6206P332MR
LDO1
6
Button SPST 50mA 12V
SW5, SW6, SW7, SW8, SW9, SW11
4
0603,Red
LED1, LED2, LED6, LED7
2
0603,Yellow
LED4, LED5
64
XL-1615RGBC-WS2812B
RGB1, RGB2, RGB3, RGB4, RGB5, RGB6, RGB7, RGB8 +56
1
Zenner 3.3V <2uA ZMM3V3
D2
1
0805,800mA
FB1
4
0402,3.9nH,300mA
L3, L4, L5, L6
5
CL05B104KB54PNC
0402,100nF,50V,X7R
C1, C53, C54, C57, C58
1
CL31A107MQHNNNE
1206,100uF,6.3V,X5R
C2
1
CL21B105KBFNNNE
0805,1uF,50V,X7R
C3
2
0402CG1R5C500NT
0402,1.5pF,50V,C0G
C4, C5
1
CL05B104KO5NNNC
100nF
C6
1
CL05C331JB5NNNC
0402,330pF,50V,C0G
C7
1
CL05A475MP5NRNC
0402,4.7uF,10V,X5R
C8
Show 14 more
QtyPartRefs
1
CL10B474KA8NNNC
0603,470nF,25V,X7R
C12
1
CL10C331JB8NNNC
0603,330pF,50V,C0G
C13
2
CL05A106MQ5NUNC
0402,10uF,6.3V,X5R
C21, C51
2
0402CG120J500NT
0402,12pF,50V,C0G
C22, C23
2
1206B475K500NT
1206,4.7uF,50V,X7R
C24, C25
5
CL05A105KA5NQNC
0402,1uF,25V,X5R
C52, C55, C56, C59, C60
2
0402WGF1000TCE
0402,100
R1, R5
3
0402WGF0000TCE
0402,0,1A
R2, R3, R6
8
0402WGF1002TCE
0402,10k
R4, R7, R20, R21, R24, R27, R28, R36
2
0402WGF6800TCE
0402,680
R12, R17
2
0402WGF5101TCE
0402,5.1k
R13, R14
3
0402WGF1201TCE
0402,1.2k
R15, R16, R22
1
0402WGF3300TCE
0402,330
R18
1
0402WGF5100TCE
0402,510
R23

WLED Matrix design files

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

WLED Matrix: common questions

What microcontroller does the WLED Matrix use?

The WLED Matrix is built around the ESP32-C3FH4, from the ESP32 family.

How big is the WLED Matrix PCB?

The WLED Matrix measures 93 × 32 mm, has 2 copper layers and is 0.99 mm thick.

How many components are on the WLED Matrix?

135 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the WLED Matrix design files?

From the CDFER/Business-Cards repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the WLED Matrix design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the WLED Matrix 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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