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My LED controller Rev B

Phil-CIA·LED-controller-ws28xx·Rev B/My LED controller Rev B.kicad_pcb

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

About the My LED controller Rev B PCB

My LED controller Rev B is an open source PCB design by Phil-CIA, published on GitHub. It is a 2-layer board measuring 50 × 75 mm, with 51 components from 30 distinct parts.

Other key parts include the SN74AHCT125PWR, AHT20_C2757850 and LED_STRIP_CONN. By type, the board carries 15 resistors, 13 diodes, 7 capacitors, 6 connectors, 4 switches and 3 ICs.

It belongs with the sensors 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 Rev B

SN74AHCT125PWRAHT20_C2757850LED_STRIP_CONN

My LED controller Rev B bill of materials (BOM)

51 components, 30 distinct parts.

QtyPartRefs
1
SN74AHCT125PWR
U4
1
AHT20_C2757850
U5
1
LED_STRIP_CONN
U9
1
BSP322
hongjiacheng
Q1
1
AO3400A
Alpha & Omega Semicon
Q2
1
Power SEL
J2
1
B2B-XH-A(LF)(SN)
Fan Control
JST Sales America Inc.
J3
1
Conn_01x03_Pin
J4
3
SPARE_OUT_HDR
J5, J6, J7
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
1
1SMA5927A
hongjiacheng
D12
1
US1M
D13
Show 10 more
QtyPartRefs
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 Rev B 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 Rev B: common questions

How big is the My LED controller Rev B PCB?

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

How many components are on the My LED controller Rev B?

51 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the My LED controller Rev B 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 Rev B 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.

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