Wearable motion tracking with ECG and EMG
Client project: project fee $22,000, development time 2 months. A research prototype, not a medical device: wearable units that record heart (ECG) and surface muscle (sEMG) signals, track upper-limb and walking motion, and send the data over Bluetooth to a main unit and a PC application that shows waveforms, heart rate, steps, gait features and skin temperature in real time. The electronics are a stack of modular boards, so each part can be debugged and replaced on its own.
- Client type: Research client (not named)
- Units: Working prototype (count not published)
- Project fee: $22,000
- Development time: 2 months
- Stage: Client project, completed
Overview and tech stack
- Project type
- Small devices, DIY, consumer and education electronics
- Signals
- ECG and surface EMG (sEMG) acquisition and filtering
- Motion
- Wearable posture and gait units, step detection, gait feature extraction
- Hardware
- Modular stacked PCBs: main control, expansion, sensor, power and touch-display boards
- Links
- Bluetooth (BLE and 2.0), USB 2.0, TCP
- PC software
- Live waveforms, sEMG power spectrum, heart rate, gait and temperature, with data storage
What we built
- Complete hardware design of the wearable and main units
- ECG and sEMG acquisition hardware and signal processing
- Gait and upper-limb motion sensing
- Step detection and gait feature-extraction algorithms
- Wearable firmware and the on-device screen interface
- PC Bluetooth application for real-time display, analysis and storage
Project figures
- Development time
- 2 months
- Project fee
- USD 22,000
Figures from the client project itself; the client is not named. A quote for your build follows a review of your files.
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- We review it and list the gaps and open questions.
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Photos and design files
