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Muse S Meditation Headband Teardown

2022-07-03 | By bekathwia

License: Attribution-NonCommercial-ShareAlike

 

Today I'm taking a look inside the Muse S meditation headband. This brainwave-sensing device uses conductive fabric sensors to track your brain activity, and that biometric data informs the app's meditation and sleep programs. The folks at Lumafield were kind enough to scan the Muse before I took it apart, so we can look at the inside of the device through digital imaging as well as under a microscope. Thanks to David Cranor for lending his electrical engineering expertise.

Tools used in this teardown:

Parts we could identify on the Muse S circuitry:

  1. 150mAh Li-ion battery - Great Power GSP061621
  2. Photodiode 5010 VB37296
  3. Oximeter/heart rate sensor - Analog Devices/Maxim IntegratedMAX86140ENP+
  4. Battery charger IC - Analog Devices/Maxim Integrated+MAX 77651B EWV
  5. Unknown SH [QR CODE] 141
  6. Unknown K33
  7. Arm Cortex-M4 MCU - ST Micro L452RCI6
  8. Unknown - ST Micro K193 Y121
  9. Unknown - ST Micro K16 Y102
  10. Bluetooth module PRD601 2013877 [QR code]
  11. Chip antenna
  12. Unknown 28E 16 18J (6 pins)

components chart

opening up the Muse S

flex pcb inside headband

light pipes

chip epoxied to flex pcb

battery

strong magnets

pulse oximetry PCB

back of pulse oximetry pcb

pogo pins

k33

SH

circuit assembly

CT scan

CT scan

CT scan

CT scan

CT scan

You can explore the scan of the Muse S yourself on Lumafield.

To keep up with what I’m working on, follow me on YouTube, Instagram, Twitter, Pinterest, and subscribe to my newsletter.

 

制造商零件编号 MAX86140ENP+
SENSOR - OXIMETER/HEART RATE SPI
Analog Devices Inc./Maxim Integrated
More Info
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制造商零件编号 STM32L452RCI6
IC MCU 32BIT 256KB FLASH 64UFBGA
STMicroelectronics
¥47.29
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制造商零件编号 32614
POCKET PRECISION 4-IN-1 SCREWDRI
Klein Tools, Inc.
¥179.21
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制造商零件编号 26700-209
MICROSCOPE DGTL 10X-200X W/LIGHT
Aven Tools
More Info
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