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ESP32-Small-SRWLED

wszeto9·Small-ESP32-SR-WLED-Controller·PCB/ESP32-Small-SRWLED.kicad_pcb

ESP32-Small-SRWLED PCB layout, top view — open source ESP32 board by wszeto9
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About the ESP32-Small-SRWLED PCB

ESP32-Small-SRWLED is an open source ESP32 PCB design by wszeto9, published on GitHub. It is a 4-layer board measuring 19.6 × 20.3 mm, with 35 components from 20 distinct parts.

Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the TPS54202DDCR, MSM261D4030H1CPM, AO3400A and 78L05G-AB3-R. By type, the board carries 11 capacitors, 10 ICs, 9 resistors, 3 connectors, 1 diode and 1 inductor.

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

From the project

A small LED controller that runs WLED-Sound Reactive. Supports 5-24V analog and addressible lights.

A small LED controller that runs WLED-Sound Reactive. Supports 5-24V analog and addressible lights.

- All front components should be soldered by JLCPCB. - Flip the board and solder the ESP32 WROOM chip. - Attach the programming device onto the mezzamine connector on the top front of the board - Program the ESP32 with WLED - Unplug the programming header - Solder on lights and a power lead - Connect to the ESP's Wi-Fi network and turn on the lights!

ESP32-Small-SRWLED, from the project README
From the project README

Main components on the ESP32-Small-SRWLED

TPS54202DDCRMSM261D4030H1CPMESP32-WROOM-32DAO3400A78L05G-AB3-R

ESP32-Small-SRWLED bill of materials (BOM)

35 components, 20 distinct parts.

QtyPartRefs
1
TPS54202DDCR
TPS54202DDC
U1
1
MSM261D4030H1CPM
U2
1
ESP32-WROOM-32D
U3
6
AO3400A
U4, U5, U6, U7, U9, U10
1
78L05G-AB3-R
U8
1
SolderHeader1x7
J1
1
BB10-10S-02
J2
1
SolderHeader1x5
J3
1
LED_White
D1
1
YNR4030-4R7M
4.7uH/2A
L1
2
CL05A106MQ5NUNC
0402,10uF,6.3V,X5R
C1, C9
1
GRM21BR61H106KE43L
0805,10uF,50V,X5R
C2
5
CL05B104KO5NNNC
0402,100nF,16V,X7R
C3, C4, C6, C7, C11
1
0402CG470J500NT
0402,47pF,50V,C0G
C5
1
CL21A476MQYNNNE
0805,47uF,6.3V,X5R
C8
1
CL05B104KB54PNC
0402,100nF,50V,X7R
C10
6
0402WGF1002TCE
0402,10k
R1, R4, R5, R6, R7, R8
1
0402WGF1003TCE
0402,100k
R2
1
0402WGF2202TCE
0402,22k
R3
1
0402WGF2200TCE
0402,220
R9

ESP32-Small-SRWLED design files

The KiCad project lives in the wszeto9/Small-ESP32-SR-WLED-Controller repository on GitHub; these links point at the commit this page was built from.

ESP32-Small-SRWLED: common questions

What microcontroller does the ESP32-Small-SRWLED use?

The ESP32-Small-SRWLED is built around the ESP32-WROOM-32D, from the ESP32 family.

How big is the ESP32-Small-SRWLED PCB?

The ESP32-Small-SRWLED measures 19.6 × 20.3 mm, has 4 copper layers and is 1.5838 mm thick.

How many components are on the ESP32-Small-SRWLED?

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

Where can I download the ESP32-Small-SRWLED design files?

From the wszeto9/Small-ESP32-SR-WLED-Controller 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-Small-SRWLED design in my own project?

The repository has no license, so all rights stay with wszeto9. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32-Small-SRWLED 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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