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EmotiBit Guide



EmotiBit is a wearable sensor module for capturing high-quality emotional, physiological, and movement data. Easy-to-use and scientifically-validated sensing lets you enjoy wireless data streaming to any platform or direct data recording to the built-in SD card.

Scientific validation

Open-source alternative to research devices (e.g. Brain products, Empatica, Shimmer, BIOPAC.

$500 EmotiBit vs. a $20,000 gold standard Brain Products device - validation study

Purchase the All-in-One EmotiBit Bundle or the EmotiBit + Kit to get started!

16+ biometric data streams:

  • PPG (3-wavelength) to derive heart rate, heart rate variability, respiration, oxygen saturation, hydration and (we believe) much more!
  • EDA / GSR(electrodermal activity / galvanic skin response) reflecting sympathetic nervous system responses that are driven by cognitive and emotional arousal.
  • 9-axis IMU(accel, gyro, mag) to derive movements, activity, gesture, rotation, and cardinal direction.
  • Body temperature to assess health as well as emotional reactions.

What can you do with EmotiBit?

Whether you're a researcher, developer, educator, artist, or just passionate about harnessing your own physiological data, the EmotiBit offers something for everyone!

Get inspired by the example projects in the product images.

  • Get immediate feedback about how cognitive and neural processes change your body’s physiology on a moment by moment basis.
  • Log your physical and psycho-emotional changes throughout the day.
  • Track changes in body temperature, blood oxygen levels, and much more to build a long-term record of your bio-data.
  • Create an audio-visual experience using your own biometric data.
  • Data is accurately timestamped for synchronizing with other sensors/systems.
  • Use the simple data labeling feature built into the cross-platform EmotiBit data visualizer to leverage data science and machine learning and discover your bio-patterns.

EmotiBit Options:

You can select from different EmotiBit options to get the one that’s right for you. Fully open-source, cross-platform data visualizer software (Windows, Mac, Linux) is included with all options.

Want to take the guesswork out of ordering? Check out the All-in-one Emotibit Bundle that includes everything you need to get started measuring research-grade biometric signals, and get $25 off!

What is the difference between the EmotiBit Emo and MD Boards?

Product nameWhat's IncludedPrice
EmotiBit Emo
  • PPG Sensor (3-wavelength)
  • EDA / GSR sensor (+AgCl snap electrodes)
  • 9-axis IMU (Accel, Gyro, Mag)
  • Temperature sensor (standard-grade)
  • Numerous derivative biometric streams
  • Finger strap
EmotiBit MD
  • Everything on EmotiBit Emo
  • PLUS a medical-grade temperature sensor (thermopile) for sensing even more accurate body temperature

Do I need a kit?

You need several items in the Essentials Kit to use EmotiBit, including:

  • Adafruit Feather M0 WiFi
  • Lithium ion battery (400mAh sized to fit between the EmotiBit & Feather)
  • High-speed microSD card + reader
  • Micro USB cable

We highly recommend you get an Essentials Kit to use EmotiBit out of the box, but we’re offering EmotiBit board-only options without a kit in case you already have all these parts or if you want to adapt the EmotiBit firmware to use another Feather or configuration.

We also have an Electrode Kit for folks who want spares and additional flexibility to use EmotiBit in research and other high-use settings.

Product nameWhat's IncludedPrice
Essentials Kit
  • Adafruit Feather M0 WiFi
  • 400mAh battery (up to 10 hours use in data-logger mode)
  • High-speed microSD card
  • MicroSD card reader
  • Micro USB cable
  • 3 Emoti-stretch straps of different lengths to wear EmotiBit nearly anywhere on the body, ranging from a child’s wrist to an adult head
Electrode Kit
  • 10x EDA electrodes (Ag/AgCl)
  • 5x solder-cup snaps (to add your own EDA leads)
  • 5x Emoti-genic covers (provides an additional hygienic layer and sweat protection)

How to use it


1. Stack

Stack EmotiBit with any Adafruit Feather module, insert an SD card, and plug in a battery.

2. Sense

Place EmotiBit almost anywhere on the body and launch the visualizer to start viewing physiological data.


Save data to an SD card, stream via LSL, OSC, TCP, etc, or open up the code and do anything you want!

Who makes EmotiBit?

Learn more about EmotiBit and the team behind it on the EmotiBit website.

Head to the EmotiBit Github for complete guides and documentation. Happy sensing!