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Unified old

ervanalb·lux·led_strip_hardware/unified_old.kicad_pcb

Unified old PCB layout, top view — open source STM32 board by ervanalb
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About the Unified old PCB

Unified old is an open source STM32 PCB design by ervanalb, published on GitHub. It is a 4-layer board measuring 48.3 × 20.3 mm, with 36 components from 31 distinct parts.

Its main chip is the STM32F030-32, from the STM32 family. Other key parts include the ISL83485IBZ, TPS54560, NCP1117ST33T3G and 2CH-TVS. By type, the board carries 12 resistors, 9 capacitors, 5 ICs, 4 connectors, 3 diodes and 1 transistor.

It belongs with the audio designs in this gallery.

From the project

Light control protocol

v7 Changelog ------------ - Doubled C1 with C10 (+48V filtering) - Doubled C9 with C11 (3V3 filtering) - Added C12, 100nF decoupling cap to U3 - Improved DFM

v6 Changelog ------------ (Minor revision) - Added soft-start circuit (Q1, R9, R10) to +48V - Added bias resistors (R11, R12) to RS-422 lines - Added transient voltage suppressor (U5) to RS-422 lines - "Greenwire": Doubled C1 (+48V filtering) - "Greenwire": Doubled C9 (3V3 filtering) - "Greenwire": Added 2x 100nF decoupling caps to U3

Main components on the Unified old

ISL83485IBZTPS54560STM32F030-32NCP1117ST33T3G2CH-TVS

Unified old bill of materials (BOM)

36 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ISL83485IBZ
U1
1
TPS54560
U2
1
STM32F030-32
U3
1
NCP1117ST33T3G
U4
1
2CH-TVS
U5
1
FDN5618P
Q1
1
mod_jack_in
P1
1
PWR_TST
P2
1
LED_STRIP
P3
1
ICSP
P4
1
USR_SW
SW1
1
USR_LED
D1
1
STPS20M100S
D2
1
1SMB58AT3G
D3
1
10u
L1
1
2u2
C1
3
100n
C2, C3, C8
1
1n2
C4
1
22p
C5
2
56u
C6, C7
Show 11 more
QtyPartRefs
1
2u2
C9
1
120R
R1
1
270K
R2
1
27K
R3
1
220R
R4
1
68K
R5
1
12K
R6
2
1K
R7, R8
1
22K
R9
1
47K
R10
2
680R
R11, R12

Unified old design files

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

Unified old: common questions

What microcontroller does the Unified old use?

The Unified old is built around the STM32F030-32, from the STM32 family.

How big is the Unified old PCB?

The Unified old measures 48.3 × 20.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Unified old?

36 components, from 31 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 Unified old 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 Unified old 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 Unified old 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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