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Careful Where You Point That Thingy:91

Written by Kirsten Campbell

Nordic Semi’s Thingy:91 prototyping platform combined with Exeter’s Powerfoyle shield enables unlimited battery life in development projects.

Swedish solar cell technology company Exeger has developed an add-on ‘shield’ for Nordic Semiconductor’s Thingy:91 cellular IoT prototyping platform and associated development boards. The shield provides users with plug-and-play light energy harvesting capabilities for their product design project. The harvest shall be bountiful this fall.

The ‘Powerfoyle Shield’ is based on Exeger’s photovoltaic (PV) cell material, which is resilient, powerful and can deliver light energy harvesting of indoor or outdoor light without the need for direct sunlight.

Data-driven power management optimization
Data captured from the shield can be used to determine the power management profile of the device, and to optimize power management performance based on ever-changing light conditions and battery level. This power management profile enables developers using the Nordic Thingy:91 and compatible development boards to extend the power budget of their product and build a smarter and more sustainable solution.

Empowering app development
Exeger offers a Powerfoyle Software Development Kit (SDK) to its customers and partners so they can build native apps to illustrate the gain and drain of their solar-powered device under varying light conditions.

“The Powerfoyle Shield is the result of a long term strategic partnership between Nordic and Exeger to bring sustainable thinking to product design, removing ‘battery anxiety’, and ultimately replacing the costly and wasteful need to replace batteries,” says Thomas Holmberg, Regional Sales Director – EMEA, Nordic Semiconductor.

Self-sufficient designs with Thingy:91

Depending on the specific application and the energy consumption budget the device is programmed to achieve, the Thingy:91 and Powerfoyle Shield enables designs to be completely self-sufficient, free from the need to be charged through conventional means or by battery replacement.

“This is a partnership about a greener and smarter future, and both our companies share a similar vision when it comes to sustainability, power efficiency, and a connected world,” says Oscar Hemberg, Chief Product Integration Officer, Exeger. “Nordic was an ideal partner for this initiative combining low power connectivity with our unique Powerfoyle solar cell technology and getting it into the hands of developers building on the successful Nordic Thingy platform.”

Nordic Semiconductor |

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Kirsten Campbell is a Marketing Tornado and junk robot of information. Analytical and creative, she has been in marketing and communications since 2008 and worked with everyone from small businesses to your favorite household names. 


Ask her about the time she made a numismatics blog interesting (yes, really) or wrote an obit for a family she never met.


An ardent admirer of corporate snark played out online, Kirsten loves Reese’s peanut butter cups and still isn't over the Mars Rover.

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Careful Where You Point That Thingy:91

by Kirsten Campbell time to read: 1 min