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Led spot

ervanalb·lux·led_spot_hardware/led spot.kicad_pcb

Led spot PCB layout, top view — open source STM32 board by ervanalb
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About the Led spot PCB

Led spot is an open source STM32 PCB design by ervanalb, published on GitHub. It is a 4-layer board measuring 50 × 49.8 mm, with 49 components from 28 distinct parts.

Its main chip is the STM32F030-20, from the STM32 family. Other key parts include the LM2594-HV, 2CH-TVS, ISL83485IBZ and TPS92511. By type, the board carries 15 resistors, 11 capacitors, 7 ICs, 6 diodes, 4 inductors and 3 connectors.

From the project

Light control protocol

Lux is a protocol for the transmission of power and data from a host device to one or more nodes. It is capable of data rates approaching 3 megabits per second and supplying 30 Watts of power over distances of up to 100 feet. It is designed to be easy to implement and uses low-cost cabling and connectors.

Lux was designed as a lighting control protocol, specifically for LED strips. But, it generalizes nicely to any sort of automation on a small to medium scale.

Main components on the Led spot

LM2594-HVSTM32F030-202CH-TVSISL83485IBZTPS92511

Led spot bill of materials (BOM)

49 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM2594-HV
U1
1
STM32F030-20
U2
1
2CH-TVS
U3
1
ISL83485IBZ
U4
3
TPS92511
U5, U6, U7
1
FDN5618P
Q1
1
mod_jack_in
P1
1
LED
P2
1
SWD
P3
1
PWR
K1
1
SW_Push
SW1
1
1SMB58AT3G
D1
4
STPS1H100U
D2, D5, D6, D7
1
USR
D4
1
22u
L1
3
100u
L2, L3, L4
3
100n
C1, C2, C9
1
4u7
C3
3
1u
C5, C6, C7
1
2u2
C8
Show 8 more
QtyPartRefs
3
100n
C10, C11, C12
4
22K
R1, R8, R10, R12
1
47K
R2
2
680R
R3, R5
1
120R
R4
1
220R
R6
3
3K3
R7, R9, R11
3
1K
R13, R14, R15

Led spot design files

The KiCad project lives in the ervanalb/lux repository on GitHub; these links point at the commit this page was built from.

Led spot: common questions

What microcontroller does the Led spot use?

The Led spot is built around the STM32F030-20, from the STM32 family.

How big is the Led spot PCB?

The Led spot measures 50 × 49.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Led spot?

49 components, from 28 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Led spot design files?

From the ervanalb/lux repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Led spot design in my own project?

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

Can I test firmware for the Led spot 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.

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