Mindfield eSense SDK for developing custom Windows software

Who is this SDK for?

For Windows developers building biofeedback and neurofeedback applications in C# / .NET – from practice software to research tools to coaching platforms. You get direct access to the calibrated data streams of all eSense sensors in a single library.

What’s included

Native Windows SDK for the complete eSense sensor family:

• eSense Skin Response — electrodermal activity (EDA / GSR) in microsiemens (µS), audio
• eSense Temperature — skin temperature in °C / °F, audio
• eSense Respiration — breathing amplitude (RA), audio
• eSense Pulse — heart rate (BPM) and RR intervals via the standard Bluetooth heart-rate service (HRP)
• eSense Muscle — muscle activity (EMG) in microvolts (µV), 2-channel, frequency bands Broadband (20–950 Hz) / Mid (20–300 Hz) / Narrow (100–200 Hz) as µV RMS, via Bluetooth
• eSense EEGenius — brain activity (EEG) in microvolts (µV), 2-channel, raw signal 250 Hz/channel; plus 10 frequency bands (transmitted at 20 Hz): Delta (0.5–4 Hz), Theta (4–8 Hz), Lo-Alpha (8–10 Hz), Alpha (8–12 Hz), Hi-Alpha (10–12 Hz), Lo-Beta (12–15 Hz), Beta1 (15–19 Hz), Beta2 (19–23 Hz), Hi-Beta (23–27 Hz) and Artifact (52–58 Hz); plus per-channel impedance display, via Bluetooth

Also included:

• Fully functional WinUI 3 demo app in source code – with live charts (LiveCharts2), CSV export and a unified device picker for audio and Bluetooth sensors
• API documentation (XML IntelliSense in every NuGet package) and a quick-start guide
• Lifetime updates of the purchased platform version
• Unlimited commercial and non-commercial use, no royalties

Hardware in the set: a USB-C adapter for connecting the eSense audio sensors (Skin Response, Temperature, Respiration) to your Windows PC.

Technical specification

Supported sensors at a glance

The demo app in action – all six sensors live

The included WinUI 3 demo app (source code included) streams every sensor in real time with live charts, signal quality and CSV export. Here it is across the complete eSense family:

Pulse sensor: Bluetooth standard, no custom code needed

The eSense Pulse implements the official Bluetooth SIG standard Heart Rate Service (service UUID 0x180D, Heart Rate Measurement characteristic 0x2A37). You don’t need a vendor-specific SDK – the native Bluetooth APIs of Windows 10/11 are sufficient, provided a BLE chip is present or a BLE dongle is used. Full code examples including a parser for the flags byte (UINT8 vs. UINT16) ship with the demo app.

Quick start (C#, .NET 10)

using var manager = ESenseManager.Create();
await manager.ConnectAsync(SensorType.SkinResponse);
manager.Readings.Subscribe(reading =>
    Console.WriteLine($"EDA: {reading.Value} µS, Quality: {reading.Quality}")
);

Application scenarios on Windows

• Biofeedback practice software — clinic or practice workstation with calibrated sensor streams, session management and reporting
• Neurofeedback application — EEGenius EEG with frequency bands (Delta–Beta) and impedance control for concentration and relaxation training
• EMG rehab & physiotherapy — Muscle sensor (2-channel) for muscle re-education, posture training and progress documentation
• HRV biofeedback & coherence training — Pulse via the Bluetooth standard for heart-rate variability and breathing coherence
• Research tool in the lab — multi-sensor capture of all six sensors simultaneously, CSV/Excel export and stimulus/marker synchronisation
• Coaching & training software — live visualisation and analysis for trainers, local and privacy-friendly
• Integration into existing .NET software — modular NuGet packages plug directly into existing Windows applications
• Trade-show & kiosk demo — standalone Windows app with live charts for demonstrations and showrooms

Frequently asked questions

Related products

eSense Professional Sets

• eSense Complete Set for Professional Users (incl. SDK) — all sensors plus SDK bundled
• eSense Complete Set for Professional Users (without SDK)

The individual eSense sensors

• eSense Skin Response — skin conductance (EDA · µS)
• eSense Temperature — skin temperature (°C / °F)
• eSense Respiration — respiration (RA)
• eSense Pulse — heart rate (BPM · HRV)
• eSense Muscle Home & eSense Muscle Pro — muscle activity (EMG · µV)
• eSense EEGenius — EEG (µV)

Other eSense SDKs

• eSense SDK for mobile, cross-platform & VR apps (iOS / Android)
• eSense SDK for macOS
• eSense SDK for Muscle / EEGenius (C# for Unity, EMG/EEG)

Apple, iPhone, iPad, iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. | IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under licence. | Android is a trademark of Google LLC | The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Mindfield Biosystems Ltd. is under license. Other trademarks and trade names are those of their respective owners.