HardLabs

My LED controller

Phil-CIA·LED-controller-ws28xx

My LED controller PCB layout, top view — open source ESP32 board by Phil-CIA

About the My LED controller PCB

My LED controller is an open source ESP32 PCB design by Phil-CIA, published on GitHub. It is a 2-layer board measuring 50 × 75 mm, with 51 components from 32 distinct parts.

Its main chip is the ESP32-DevKitM-1, from the ESP32 family. Other key parts include the SN74AHCT125PWR, AHT20_C2757850 and LED_STRIP_CONN. By type, the board carries 15 resistors, 13 diodes, 7 capacitors, 4 ICs, 4 connectors and 4 switches.

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

From the project

This is a LED Strip controller

This repo now supports two firmware paths: - custom firmware in src/main.cpp (serial-driven tests and demo) - official WLED firmware (Wi-Fi + WLED app control)

This repo now also supports two hardware targets: - breadboard target profile - pcb target profile

Each target has independent identity lock (port/chip/MAC) in scripts/flash-targets.json.

If expectedMac is empty for a target, guarded upload refuses to flash.

Main components on the My LED controller

ESP32-DevKitM-1SN74AHCT125PWRAHT20_C2757850LED_STRIP_CONN

My LED controller bill of materials (BOM)

51 components, 32 distinct parts.

QtyPartRefs
1
ESP32-DevKitM-1
U1
1
SN74AHCT125PWR
U4
1
AHT20_C2757850
U5
1
LED_STRIP_CONN
U9
1
BSP322PH6327
hongjiacheng
Q1
1
AO3400A
Alpha & Omega Semicon
Q2
1
AMPHENOL_SPI HDR
J1
1
Power SEL
J2
1
B2B-XH-A(LF)(SN)
Fan Control
JST Sales America Inc.
J3
1
SPARE_OUT_HDR
J4
1
~
BUCK1
1
PTC RESET FUSE 700mA TH
F1
1
-
SW3
1
+
SW4
1
MODE
SW5
1
POWER
SW6
3
WS2812B
D1, D2, D3
1
SMAJ26CA
D4
1
SMAJ5.0CA
hongjiacheng
D5
6
ESD5Z5.0T1G
D6, D7, D8, D9, D10, D11
Show 12 more
QtyPartRefs
1
1SMA5927A
hongjiacheng
D12
1
US1M
D13
3
100nF
Samsung Electro-Mechanics
C1, C3, C19
1
100uF
Samsung Electro-Mechanics
C2
1
10uF
Murata Electronics
C17
1
0.1uF
Samsung Electro-Mechanics
C18
1
1000uF
C20
2
10kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R5
8
100Ω
UNI-ROYAL(Uniroyal Elec)
R2, R3, R4, R7, R8, R9, R15, R16
2
100kΩ
UNI-ROYAL(Uniroyal Elec)
R6, R10
2
4.7k
UNI-ROYAL(Uniroyal Elec)
R12, R13
1
220Ω
UNI-ROYAL(Uniroyal Elec)
R14

My LED controller design files

The KiCad project lives in the Phil-CIA/LED-controller-ws28xx repository on GitHub; these links point at the commit this page was built from.

My LED controller: common questions

What microcontroller does the My LED controller use?

The My LED controller is built around the ESP32-DevKitM-1, from the ESP32 family.

How big is the My LED controller PCB?

The My LED controller measures 50 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the My LED controller?

51 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the My LED controller design files?

From the Phil-CIA/LED-controller-ws28xx repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the My LED controller design in my own project?

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

Can I test firmware for the My LED controller 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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