I will develop custom smart healthcare ring prototype with ble and hrv tracking

United Kingdom

I speak English, German, French, Spanish

Electronics Engineering, Embedded System and Firmware Development

Hi there, I'm Joe Fraulkner, I'm an Electronics Engineer and Embedded Systems Developer with deep expertise in firmware architecture, low-level driver development, and high-performance PCB design. I s...
About this Gig

Hello,

I specialize in developing smart healthcare ring prototypes (Oura-style form factor) designed to capture accurate, longitudinal health data and integrate seamlessly into custom platforms. This service is focused on functional prototype development not mass production delivering reliable hardware and firmware ready for validation and pilot testing.


Core capabilities include:

  • Heart Rate & HRV (RMSSD / SDNN)
  • Resting Heart Rate (night baseline tracking)
  • SpO (overnight monitoring)
  • Respiratory Rate (sleep-based)
  • Skin Temperature (baseline deviation)
  • Sleep tracking (stages, efficiency, duration)
  • Activity tracking (steps, movement, inactivity)


Development process:

  • Hardware architecture & sensor selection
  • Firmware + BLE implementation
  • Data validation & calibration
  • Prototype assembly & testing


What You'll Get

  • Working smart ring prototype
  • Custom hardware + firmware
  • HR, HRV, SpO, sleep & activity track
  • Testing & calibration support


If you're building a preventive screening platform, research solution, or digital health product, lets develop a reliable wearable prototype taiored to your system.

Platform:

STM32

Sensors:

Temperature

Humidity

Accelerometer

Microphone

Expertise:

Firmware development

RTOS

Debugging

Microcontrollers