HardLabs

MultiSpectLED

benkrasnow·MultiSpectLED·pcb-Kicad/MultiSpectLED/MultiSpectLED.kicad_pcb

MultiSpectLED PCB layout, top view — open source NXP board by benkrasnow

About the MultiSpectLED PCB

MultiSpectLED is an open source NXP PCB design by benkrasnow, published on GitHub under the MIT license. It is a 2-layer board measuring 113.4 × 56 mm, with 117 components from 25 distinct parts.

Its main chip is the TeensyLC, from the NXP family. Other key parts include the PAM2804. By type, the board carries 30 capacitors, 30 resistors, 16 ICs, 15 diodes, 15 inductors and 2 connectors.

It belongs with the power & battery designs in this gallery.

From the project

Array of 15 1W LEDs spanning 280nm to 940nm

Notes: The 280nm LED has a forward voltage drop of between 5V and 7.5V depending on the voltage bin. This is higher that I expected when I designed the circuit, and it will not work if the power supply is really 5.0V. It should have a boost converter instead of a buck converter. However, I happened to receive an LED with a 5.1V drop, and my 5V wall adapter supplies 5.35V at 500mA, so the system works with the buck converter, just barely. This part of the circuit should be redesigned if 280nm is needed.

MultiSpectLED, from the project README
From the project README

Main components on the MultiSpectLED

PAM2804TeensyLC

MultiSpectLED bill of materials (BOM)

117 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
15
PAM2804
U1, U3, U4, U5, U6, U7, U8, U9 +7
1
TeensyLC
U2
1
Conn_01x02_Female
J1
1
USB_C_Receptacle_USB2.0
J2
7
3mm_PTH
H1, H2, H3, H4, H5, H6, H7
2
NKK_HEXADEC
SW1, SW2
1
470nm
D1
1
448nm
D2
1
280nm
D3
1
405nm
D4
1
367nm
D5
1
505nm
D6
1
530nm
D7
1
568nm
D8
1
591nm
D9
1
617nm
D10
1
627nm
D11
1
655nm
D12
1
740nm
D13
1
850nm
D14
Show 5 more
QtyPartRefs
1
940nm
D15
15
4.7u
L1, L2, L3, L4, L5, L6, L7, L8 +7
30
C
C1, C2, C3, C4, C5, C6, C7, C8 +22
15
0.2
R1, R2, R3, R4, R5, R6, R7, R8 +7
15
100K
R16, R17, R18, R19, R20, R21, R22, R23 +7

MultiSpectLED design files

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

MultiSpectLED: common questions

What microcontroller does the MultiSpectLED use?

The MultiSpectLED is built around the TeensyLC, from the NXP family.

How big is the MultiSpectLED PCB?

The MultiSpectLED measures 113.4 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MultiSpectLED?

117 components, from 25 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 MultiSpectLED design files?

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

Can I use the MultiSpectLED design in my own project?

Yes, under the terms of its MIT license, which benkrasnow chose for the repository.

Can I test firmware for the MultiSpectLED without the hardware?

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

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