Easy to obtain, easy to replace
All the parts used in Calmi are off-the-shelf, meaning they're easy to find and order. They are affordable and simple to assemble.
And if any of the components break, it's easy to replace, which allowed me to experiment and learn as I'm building and testing things out.
LED light ring
A ring of twenty four light emitting pixels shine into the white SLA-printed dome, allowing for different light patterns to be created.
Speaker
Calmi can play sounds and voice-overs through its 3.5-watt speaker and dedicated audio controller.
Charging
The device runs on a lithium battery. You can charge it via the USB-port or wirelessly by using the provided charger pad.
Microcontroller
A dual-core microcontrollers served as a foundation, it has Wi-Fi capabilities and a compact form factor.
Software
The microcontroller runs on custom-written firmware. It manages communication between all components and facilitates communication between the app and the device.
The custom app has been developed from scratch. It enables users to perform complex interactions that they can't easily execute on the device itself.
DEGIRO, Europe’s top online broker, serves both data-driven professionals and casual investors. Despite DEGIRO’s strong performance, the platform felt outdated and misaligned with the brand's success. The goal was to modernize the platform while maintaining its existing functionality. I worked with a design director to set the vision and oversee planning. I later took over as the project lead, managing the client relationship, presenting progress, and guiding the overall design direction.
The project unfolded in three distinct phases: art direction, production, and delivery. Our primary deliverables included a compelling visual concept, an updated component library featuring design tokens, and developer support for seamless implementation. A significant focus was on accessibility to ensure the platform met 2025 EU regulations.
To lay the groundwork for this project, the UX designer and I conducted a component and template audit. The findings gave insight into existing platform structures, components, and naming schemes. This information was critical to identifying key templates and the eventual redesign of components.
The vision for the art direction was founded on visual explorations which were regularly delivered to stakeholder and developer teams for approval. These regular check-ins aided in the creation of the cohesive art direction for the project.
Realizing the main benefactors of the redesign would be users, my team invited a small group of DEGIRO customers to test updated elements of the redesign. For instance, customers found the change of buy and sell button colors from traditional red and green to blue and black to be unfavorable. Responding to the feedback, we adjusted the design to incorporate the red and green buttons.
With the first round of feedback in hand, I fine-tuned our art direction and began the production phase. Over six weeks, I designed a large set of components used in the seven key templates of the platform. These templates formed the basis of our component library, the first step toward a design system.
A set of tokens were crafted based on the initial art direction, helping the design team and developers work efficiently. This system included core and semantic tokens for all components. Key elements included a refined color system, updated typography, a spacing system, motion guidelines, and more
All components, from small atoms to large organisms, were designed and merged with the design tokens in a component library, forming the base for our redesigned platform. Adding a motion designer to the project further enriched the platform, creating a friendly yet comprehensive experience.
The final phase of the project involved providing five weeks of comprehensive development support. This ensured that the team implemented all components accurately according to specifications. Additionally, we hired a company for a thorough accessibility audit to ensure our redesigned components met standards. We made a few changes to address the issues identified in the audit.