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Author Topic: Design a headband with eeg sensor  (Read 1153 times)

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Offline JafarTopic starter

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Design a headband with eeg sensor
« on: December 03, 2025, 01:44:12 pm »
Hi Team,

I’m working on a project where I want to integrate an EEG sensor into a headband. I’m looking to create a PCB with 3–4 dry electrodes capable of detecting signals in the 0.5–30 Hz range and transmitting the data to a mobile application. Since I’m fairly new to electronics, I would appreciate guidance on a roadmap or any free tools/platforms where I can design the EEG sensor (circuit or PCB), integrate it with a headband (sleep band), and test it virtually.

Any suggestions or leads would be greatly appreciated.    :) :) :)

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Offline Benta

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Re: Design a headband with eeg sensor
« Reply #1 on: December 03, 2025, 04:48:59 pm »
Last time I had an EEG, it was about 20 sensors. I don't think you'll see much with only one.
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Offline kevontheweb

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Re: Design a headband with eeg sensor
« Reply #2 on: January 07, 2026, 06:24:29 am »
I just did a quick search and found this EEG dev board

MIKROE-3359 (https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/322/MIKROE-3359_Web.pdf)

which supports 3 electrodes and uses an INA114 precision instrumentation amplifier.

Since you said you are new to electronics maybe playing with a dev board first and then basing your PCB design around that would help?
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Offline Doctorandus_P

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Re: Design a headband with eeg sensor
« Reply #3 on: January 07, 2026, 01:54:08 pm »
KiCad is a quite good Schematic and PCB design program, and as a fully Open Source project it's also "free". KiCad also has a built in simulator (ngSpice). It's a capable simulator, but the learning curve is a bit steep, as due to licencing (and other) issues there are very few spice models in KiCad by default. As a result you have to find the models "elsewhere" and add them to your symbols yourself (and also do the pin mapping).

Also see: https://www.olimex.com/Products/EEG/OpenEEG/ Olimex sells pre-built hardware, compatilbe with the https://openeeg.sourceforge.net/doc/OpenEEG project. That seems a good starting point for schematics and software.
« Last Edit: January 07, 2026, 01:57:10 pm by Doctorandus_P »
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