Blueprint

SpectrumLab V1

A compact NIR (Near-Infrared) spectrometry board powered by ESP32-C3 and AS7263!. It can be used for many things!, e.g., Material Analysis, Food quality Assessment, Fruit Sugar Content, and many more!

Created by tofurofu92 tofurofu92

Tier 3

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tofurofu92 tofurofu92 submitted SpectrumLab V1 for ship review ago

koeg koeg 🚀 requested changes for SpectrumLab V1 ago

Really polished project! Almost everything looks good! But you should add more info in your readme, you should include why you made it, and more info on what this pcb actually does, and what a compact NIR (Near-Infrared) spectrometry board is! You should also look into optimizing your bom, by trying to use economic PCBA, and components that don't require extra to be placed, especially for passives.

Otherwise, a really awesome project!!

tofurofu92 tofurofu92 added to the journal ago

Submitted!

I have finally submitted everything!, so please look at the repository cus iam not going to give all of the information here!

Repo: https://github.com/Veltnix/SpectrumLabV1

to sump up:
-Completed the repo
-Submitted everything
-Made sum cool renders on blender
-Finished readme.md on repo

here are the renders!:
Document
image
image

tofurofu92 tofurofu92 submitted SpectrumLab V1 for ship review ago

tofurofu92 tofurofu92 added to the journal ago

Shipping On The Way! 🚢

Fixed the Footprint for the LEDs (to match the new LED from JLCPCB)
image
image

Completed .step folder, Created some of the missing .step files from scratch
image
image
More cool silkscreens!
image
image
Completed BOM
image
LED Decisions
Decided to use JNJ-3030SX30102384 for the 650nm - 850 nm spectra, and LA T676-L1M2-24-0-2-R18-Z for the Indicator/around 615nm range,

image

To-do list now:

  • Finish the Github repo
  • Make some cool renders on blender
  • Ship!! o(^ï¼ ^)o

tofurofu92 tofurofu92 added to the journal ago

Layout Almost Finished

I have finally wired everything up!

everything is wired up!, but i lowkey forgot to put a real footprint (not just a placeholder) for the NIR LED!, but before that i have to search for the LED and footprint on JLCPCB, which is kinda hard as full spectrum NIR LEDS is really niche. Anyway, here is the board now:

image

image

To sum up:

  • Arranged all of the components
  • Wired everything
  • I forgot to add a 2K pull up resistor on both SCL and SDA pin, so i added both of em too
  • Added Many Silkscreen

tofurofu92 tofurofu92 added to the journal ago

Finished the schematics!

After doing some research, I've decided to use AS7263 as it provides the best spectral variation in the NIR range, and it's available on JLCPCB! image

Also, here is the schematics in pdf!:
ESP32-C3-DevBoard

Here are what the things i've did:

  1. Sensor Reasearch on AMS Web
  2. Researching Other Componenents
  3. Look trough Datasheets
  4. Complete the schematics

tofurofu92 tofurofu92 started SpectrumLab V1 ago

2/20/2026 12 PM - Finished the schematics!

After doing some research, I've decided to use AS7263 as it provides the best spectral variation in the NIR range, and it's available on JLCPCB! image

Also, here is the schematics in pdf!:
ESP32-C3-DevBoard

Here are what the things i've did:

  1. Sensor Reasearch on AMS Web
  2. Researching Other Componenents
  3. Look trough Datasheets
  4. Complete the schematics

2/20/2026 4 PM - Layout Almost Finished

I have finally wired everything up!

everything is wired up!, but i lowkey forgot to put a real footprint (not just a placeholder) for the NIR LED!, but before that i have to search for the LED and footprint on JLCPCB, which is kinda hard as full spectrum NIR LEDS is really niche. Anyway, here is the board now:

image

image

To sum up:

  • Arranged all of the components
  • Wired everything
  • I forgot to add a 2K pull up resistor on both SCL and SDA pin, so i added both of em too
  • Added Many Silkscreen

2/22/2026 11 AM - Shipping On The Way! 🚢

Fixed the Footprint for the LEDs (to match the new LED from JLCPCB)
image
image

Completed .step folder, Created some of the missing .step files from scratch
image
image
More cool silkscreens!
image
image
Completed BOM
image
LED Decisions
Decided to use JNJ-3030SX30102384 for the 650nm - 850 nm spectra, and LA T676-L1M2-24-0-2-R18-Z for the Indicator/around 615nm range,

image

To-do list now:

  • Finish the Github repo
  • Make some cool renders on blender
  • Ship!! o(^ï¼ ^)o

2/22/2026 9 PM - Submitted!

I have finally submitted everything!, so please look at the repository cus iam not going to give all of the information here!

Repo: https://github.com/Veltnix/SpectrumLabV1

to sump up:
-Completed the repo
-Submitted everything
-Made sum cool renders on blender
-Finished readme.md on repo

here are the renders!:
Document
image
image