Case Studies

Bluetooth EEG Brainwave Device Development

eeg brainwave device
Posted in Embedded Development & Programming, Product Development

Summary

DMC assisted in developing the electronics for an EEG brainwave device and its accompanying app. Additionally, DMC provided product development assistance to the client. 

Solution

DMC joined this project as the client was transitioning from an experimental stage of product development closer to launch preparation. DMC assisted in EEG development by refining the electronics and aided in overall product development.

The device consists of Bluetooth headset designed to measure EEG brain waves. The headset is accompanied by a mobile application which features multiple ‘modes’, each corresponding to a different mental state (ex. focused, relaxed). Audio and video in the app are designed to bring the user to the mental state described in the selected mode. EEG electrodes in the headset measure brain waves and determine the degree to which the selected mental state was achieved. At the end of the session, the app assigns the user a score depending on how closely they came to their goal.  

To prepare for the launch of this product, DMC engineers improved the sound quality and EEG measurement capabilities of the headset. Additionally, the DMC team made improvements to product stability, as well as the speed at which the headphones and app communicate. Lastly, DMC provided testing, experimentation, and product validation support. 

Bluetooth EEG Brainwave Device App

Bluetooth EEG Brainwave Device

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Customer Benefits

  • Improved product stability 
  • Improved EEG data collection 
  • Increased application speed 
  • Product development assistance 
  • Testing assistance 
  • Processing validation 

Technologies

  • Espressif ESP32 Wireless MCU 
  • Bluetooth Low Energy (BLE) 
  • Bluetooth Audio 
  • ADS1299 EEG front end 
  • Rechargeable battery 
  • Low-power design