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Low-power flex PCB BLE tag with solar energy harvesting

A compact flex PCB Bluetooth Low Energy tag for wireless asset tracking, designed from the client’s requirements, with a Nordic nRF54L15, solar energy harvesting and a rechargeable battery.

3D render of a compact flex PCB BLE tag with an nRF54L15, solar harvesting IC and two battery pads

The problem

The client needed a small Bluetooth Low Energy tag for wireless asset tracking. They came with requirements, not a schematic: the tag had to run from solar energy and a rechargeable battery, and fit tight mechanical constraints.

What I did

  • Designed the schematic around a Nordic nRF54L15 SoC.
  • Added an e-peas AEM13921 power-management IC for solar energy harvesting and battery storage.
  • Added an SWD programming interface for loading and debugging the firmware.
  • Made the flex PCB layout in KiCad for the tight mechanical constraints, with several assembly variants.
  • Prepared the fabrication and assembly files.

The result

A compact flex PCB BLE tag design, from requirements to fabrication and assembly files, ready to order. Client and application details are kept private under NDA.

Need something similar?

Startup, scale-up, product company or entrepreneur? Tell me what you need. I reply within 1 business day, and you get a fixed quote once I see your files.

Start a Projectmiguel@copperpathpcb.com