HardLabs

Ws28xx led driver

Knifa·ws28xx-led-driver·hardware/LedGateController.kicad_pcb

Ws28xx led driver PCB layout, top view — open source STM32 board by Knifa

About the Ws28xx led driver PCB

Ws28xx led driver is an open source STM32 PCB design by Knifa, published on GitHub. It is a 2-layer board measuring 80 × 25 mm, with 66 components from 35 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the MT3608, DW01, XC6206P332MR and PI4ULS5V201. By type, the board carries 24 resistors, 19 capacitors, 6 transistors, 5 ICs, 5 connectors and 5 diodes.

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

From the project

A straightforward DIY WS28xx LED driver.

This is a straightforward DIY WS28xx LED driver. It's got these features:

- STM32F103C8T6 used as the microcontroller. - Intended to be powered by a single-cell Li-ion battery, with USB charging and cell protection. - 5V 1.5Aish step-up for LED power. - Single button for soft-power and settings. - 0805 SMD components or thereabouts.

- Firmware under MIT License. - Hardware under CC-BY-SA-4.0.

Ws28xx led driver, from the project README
From the project README

Main components on the Ws28xx led driver

STM32F103C8TxMT3608DW01XC6206P332MRPI4ULS5V201

Ws28xx led driver bill of materials (BOM)

66 components, 35 distinct parts.

QtyPartRefs
1
STM32F103C8Tx
U1
1
MT3608
U2
1
DW01
U3
1
XC6206P332MR
U4
1
PI4ULS5V201
U5
1
FS8205A
Q1
4
AO3401A
Q2, Q3, Q4, Q6
1
AO3400A
Q5
1
SWD
J2
1
LED_OUT
J3
1
USB_B_Micro
J4
1
TP4056
J5
1
-BATT
J7
1
BUTTON
SW1
1
SS22
D1
1
PWR_LED
D2
2
D_x2_KCom_AAK
D3, D4
1
CHARGE_LED
D5
1
22u
L1
9
100n
C1, C3, C4, C5, C7, C12, C14, C16 +1
Show 15 more
QtyPartRefs
2
22u
C2, C9
3
4u7
C6, C18, C19
1
10n
C8
3
1u
C10, C11, C15
1
470u
C13
4
100
R1, R2, R6, R17
1
15K
R3
1
110K
R4
3
1K
R5, R13, R14
8
100K
R7, R11, R12, R16, R18, R19, R20, R23
2
250
R8, R24
1
50K
R9
1
150K
R10
1
1K5
R15
2
1.5K
R21, R22

Ws28xx led driver design files

The KiCad project lives in the Knifa/ws28xx-led-driver repository on GitHub; these links point at the commit this page was built from.

Ws28xx led driver: common questions

What microcontroller does the Ws28xx led driver use?

The Ws28xx led driver is built around the STM32F103C8Tx, from the STM32 family.

How big is the Ws28xx led driver PCB?

The Ws28xx led driver measures 80 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ws28xx led driver?

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

Where can I download the Ws28xx led driver design files?

From the Knifa/ws28xx-led-driver repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Ws28xx led driver design in my own project?

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

Can I test firmware for the Ws28xx led driver without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Similar boards