HardLabs

LED-BOARD

nicolas-viale·low-cost_VIS-NIR_spectrometer·HARDWARE/Embedded-Board/LED-BOARD/LED-BOARD.kicad_pcb

LED-BOARD layout, top view — open source board by nicolas-viale

About the LED-BOARD

LED-BOARD is an open source PCB design by nicolas-viale, published on GitHub. It is a 2-layer board measuring 50 × 60 mm, with 13 components from 7 distinct parts.

By type, the board carries 6 resistors, 3 transistors, 3 diodes and 1 connector.

It belongs with the science & space, displays & leds and sensors designs in this gallery.

From the project

We aim to design a miniaturised, low-cost visible light and near-infrared spectrometer in a handheld form-factor to analyse fruit ripeness and other VIS/NIR applications including use in schools and universities.

We aim to design a miniaturised, low-cost visible light and near-infrared spectrometer in a handheld form-factor to analyse fruit ripeness and other VIS/NIR applications including use in schools and universities. Existing products are found in the range of between £400-1000 and we aim to produce an alternative which will be more affordable and accessible.

Currently, the project consists of a custom RP2040 microcontroller board with an e-paper display to minimise power draw. The spectral sensing will use AMS-OSRAM's spectral sensor chips which has shown positive results in testing but in…

LED-BOARD bill of materials (BOM)

13 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
Q_NPN_BEC
Q3, Q4, Q5
1
LED->BOARD
J8
1
WHITE-LED
D4
1
IR_LED
D5
1
UV_LED
D6
3
10k
R23, R24, R25
3
470
R26, R27, R28

LED-BOARD design files

The KiCad project lives in the nicolas-viale/low-cost_VIS-NIR_spectrometer repository on GitHub; these links point at the commit this page was built from.

LED-BOARD: common questions

How big is the LED-BOARD?

The LED-BOARD measures 50 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LED-BOARD?

13 components, from 7 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-BOARD design files?

From the nicolas-viale/low-cost_VIS-NIR_spectrometer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the LED-BOARD design in my own project?

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

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