by Mindseye Biomedical

Open Source Biomedical Imaging

View all updates Sep 17, 2019

Packed and Ready to Ship

We are ready to ship, and expect to freight goods from San Francisco to Crowd Supply headquarters in Portland, Oregon! Crowd Supply estimates it will take them around two weeks to get the units out to backers once they’ve received the goods. So hold tight - your Spectra is almost there! If you need to change your address, you can do so by logging in to your Crowd Supply account.

We got our delivery of fully tested PCBs after a slight delay due to a stencil error in the PCB fabrication process, meaning they had to redo the PCBs. The mainchip is a fine-pitch BGA (the ADuCM350) for the main impedance chip, which requires a highly accurate stencil to be able to be place it accurately, so it’s great they picked up this problem which would have caused more errors in testing. The test jig was so worthwhile in the end, as I knew each PCB had passed a set of tests and been flashed with firmware as well so they are all ready to go. Once the UPS delivery of PCB assemblies arrived, it opened the door to fitting them into cases, and then kitting them up into Starter, Deluxe, and Expansion kits ready for delivery.

From delivery of the PCBA to final assembly

Assembling the cases took a bit longer than originally envisioned, but it’s all done now and they do look nice when arranged in a grid.

Shiny too.

Finally, here they all are awaiting shipment.

I’ll be coming out with a few updates to the website, including an unboxing video showing how to get from opening the box through to doing an EIT image, as well as a more detailed FAQ. For now, I’ve paused sales as I plan to move location shortly, and will resume sales on re-settlement.

Stay tuned and join our discord chat channel to stay in touch once you get your device!

$43,962 raised

of $30,000 goal

146% Funded!
Not Available
May 16 2019
funded on

Product Choices


Spectra Starter Kit

This kit has everything you need to get started experimenting with biomedical imaging, including a small tank phantom, 32-channel flex electrode array, USB cable, and fully assembled, flashed, and tested Spectra board that works with easy-to-install open source host software.


Spectra Deluxe Kit

The whole deal, ready to go. You get everything in the Spectra Starter Kit, plus a custom portable enclosure, an electrode expansion adapter, and a 32-channel, gold-plated electrode cable for performing EIT scans on almost anything, anywhere!


Expansion Kit

This kit includes an electrode expansion adapter and a 32-channel, gold-plated electrode cable (the same as those included in the Spectra Deluxe Kit). The expansion adapter lets you patch out to a standard 0.1" header so you can connect it anyway you want to anything you want. The 32-electrode cable allows you to stick the device on a variety of conductive objects of different sizes as each electrode is independent, gold-plated, and protected by an insulated injection molded cover. The expansion kit gives you the flexibility you need for nearly any experiment.


Mindseye Biomedical

Mindseye Biomedical creates new tools in non-invasive biomedical imaging and neuroscience and offers engineering consulting services. Working toward the democratization of biomedical imaging through an open source ideology.

Jean Rintoul


Contract manufacturer

See Also

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