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Bateryless Heart Rate Monitoring

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Short Description

Wearable devices generally suffer from short lifetimes due to limited battery capacity. In some cases, due to very restrictive form factors, batteries might not even be a design option. In these scenarios, small energy harvesters can be used to supply different body sensors. In our lab, we have developed a energy management unit, which allows a system designer to provide energy guarantees solely from volatile energy harvesting sources. This provides the foundation to build devices which are energy-proportional, meaning that their performance is completely energy-driven. One novel application of these devices is the combination wearable sensors and wireless communication. We are interested in building small wearable, bateryless devices which can perform different different measurements (heart rate, temperature, etc), and can rely this information to a smartphone via Bluetooth Low Energy (BLE).

The main goal of this project is to implement the first generation of these batteryless devices. Depending on the student's profile and interest, the main tasks can include:

  1. Add new sensors to existing prototype (for example, to measure UV light exposure, or body temperature).
  2. Characterization of the existing prototype: verification of the prototype's characteristics: measuring power/energy consumption, etc.
  3. Add the capability to transmit data via Bluetooth Low Energy (BLE).
  4. Implement firmware for bateryless operation.
  5. Design PCB for a full prototype.
  6. Test final design in real-world scenarios.

Status: Available

Looking for 1-2 Master students
Contact: Andres Gomez


You should have experience with Matlab and be familiar with embedded C programming.
Knowledge about microcontrollers would be an asset.


20-30% Theory
50-60% Implementation
20% Testing


Luca Benini

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Practical Details



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