A secure and reusable medical patch for connected healthcare provides body temperature, oxygen saturation (SpO2) and heart rate monitoring over a secure Bluetooth® connection. This medical patch uses a rechargeable Li-ion battery for a small profile and enhanced reusability. An onboard battery charger uses a commonly available USB port for better charging accessibility.

System Benefits​:

  • MCU with integrated Bluetooth Low Energy (LE) 5.0 for secure connectivity.
  • Optimized for low current consumption and longer battery life using a 20mAh flexible pouch battery.
  • High-accuracy temperature sensing (±0.5 °C).
  • Photoplethysmography (PPG) and proximity sensor for monitoring of essential bio-data such as heart rate, respiratory rate and oxygen saturation (SpO2) with ±3.5% accuracy.
  • On-board Li-ion battery charger IC to recharge and monitor the battery with built-in protection features.
  • Supports firmware updates via USB.



  • Personal wearable health monitor
  • Medical health monitor

News & Blog Posts

Winning Combinations

Winning Combinations

Renesas' complementary product portfolios of Analog + Power + Embedded Processing + Connectivity work together to deliver comprehensive solutions. Our product experts have developed "Winning Combinations," compelling product combinations that help our customers accelerate their designs and get to market faster.

Discover More Winning Combinations