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4 layers105.4 × 52.1 mmLux hub, the printed circuit board in 3D

Lux hub

ervanalb/lux8

Light control protocol

Full screenGitHub.kicad_pcb
Size
105.4 × 52.1 mm
Copper layers
4
Thickness
1.6 mm
Parts
99
Nets
68
Pads
378
Tracks, vias
1,034, 127
Pours
6
Routed
Yes
KiCad
KiCad 4
Created
19 Feb 2015
Updated
19 Jun 2018

Overview

Lux hub is an open-source printed circuit board by ervanalb, from the ervanalb/lux repository on GitHub. It is a 4-layer board of 105.4 × 52.1 mm with 99 parts on 68 nets, routed with 1,034 tracks and 127 vias.

It is built around the ISL83485IBZ, BTS4175SGA and DMP6023LE. Its parts include 38 resistors, 21 ICs, 14 capacitors, 10 diodes and 9 connectors. It belongs with the STM32 boards of this library.

Main components

3

README

hub_hardware/README.md

Lux Hub Hardware

History

Rev 6

Errata
Bad parts
  • U3
  • R42
  • C3 is short
  • Fuse clips
  • CON1 holes should be bigger

Rev 5

  • STM32F042
  • 6 Lux outputs
    • 48V power, 5V/0V RS-422 data
    • Data lines tied together
    • Rx/Tx enable are indepedent
    • TVS on data lines
    • Per-output PTC fuses (which weren't useful)
  • USB for comms & non-48V power
    • Spec'd for 500mA current draw to drive 6 ports
  • Greenwire: 3v3 reg U1 pads are incorrect
  • Greenwire: Inrush limiter changed: R42 -> C; C1 -> R; R1 unpopulated
  • Greenwire: RX pin incorrect; shorted to TX LED

Parts

99
QtyValueFootprintReferences
1410KResistors_SMD:R_0603R3, R11, R17, R23, R29, R35, R41, R43, R44, R45, R46, R47, R48, R50
12680RResistors_SMD:R_0603R7, R9, R13, R15, R19, R21, R25, R27, R31, R33, R37, R39
9100nCapacitors_SMD:C_0603C5, C6, C7, C8, C9, C10, C11, C12, C14
6120RResistors_SMD:R_0603R8, R14, R20, R26, R32, R38
62CH-TVSSOT23U5, U7, U9, U11, U13, U15
6BTS4175SGASMD_Packages:SOIC-8-NU16, U17, U18, U19, U20, U21
6CONN_4Assman-6p4cP1, P2, P3, P4, P5, P6
6ISL83485IBZSO8EU4, U6, U8, U10, U12, U14
6PWRLEDs:LED_0603D4, D6, D8, D10, D12, D14
3470RResistors_SMD:R_0603R4, R5, R49
21uCapacitors_SMD:C_0805C1, C2
1+48VLEDs:LED_0603D16
1100KResistors_SMD:R_0603R1
115KResistors_SMD:R_0603R2
12u2Capacitors_SMD:C_0805C4
1390KResistors_SMD:R_0603R6
13V3REGSOT223U1
14068SO14EU3
1470uDiscret:C2V8C3
148VConnect:BARREL_JACKCON1
14u7Capacitors_SMD:C_0805C15
15AFUSE5-20F1
1BOOTButtons_Switches_SMD:SW_SPST_EVQPE1SW1
1CONN_4SIL-4P7
1DMP6023LETO_SOT_Packages_SMD:SOT-223-3_TabPin2Q1
1RXLEDs:LED_0603D2
1STM32F042-32LQFP32U2
1TXLEDs:LED_0603D1
1USB-MINI-BUSB_MINI_BCON2
1VDDLEDs:LED_0603D15

The 95 most common of 99 parts.

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Questions

How big is the Lux hub PCB?

It measures 105.4 × 52.1 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Lux hub use?

99 parts, built around the ISL83485IBZ, BTS4175SGA and DMP6023LE. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Lux hub KiCad files?

From the ervanalb/lux repository on GitHub, at the commit this page was made from: the board is hub_hardware/lux hub.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Lux hub design in my own project?

Its repository states no licence, so its author keeps all rights: ask ervanalb before reusing the design.