The Spanner
Most weather devices tell you what's happening outside. PrismCube lets you feel it.
PrismCube is a minimalist ambient weather display that transforms real-time weather into a living light experience. Rather than showing forecasts on a screen, it expresses the atmosphere through a single, softly diffused glow that continuously evolves with the changing sky—from crisp blue afternoons and golden sunsets to gentle rain, dense fog, and dramatic thunderstorms.
Designed to blend into your space, PrismCube requires almost no interaction. Simply plug it in, and it automatically connects to Wi-Fi, retrieves live weather data, and adapts its lighting throughout the day. There are no buttons, no screen, and no app to check. The only interaction is turning the cube upside down to activate a vibrant Rainbow Mode before seamlessly returning to its weather visualization when placed upright.
Unlike traditional weather displays that assign one color to each condition, PrismCube recreates the feeling of the sky through carefully crafted color palettes that flow naturally over time. Every transition is inspired by the way light behaves in nature, creating a calm, immersive experience instead of simply displaying information.
Built around the Waveshare ESP32-S3 Matrix development board, PrismCube combines embedded systems, IoT, and thoughtful product design into a compact desktop companion. The enclosure was meticulously designed in Autodesk Fusion 360, balancing aesthetics, light diffusion, and functionality to create a clean, modern form that complements any workspace.
PrismCube isn't just a weather device—it's a small piece of the sky, brought indoors through light.
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Powered by Waveshare
PrismCube is built around the Waveshare ESP32-S3 Matrix, an all-in-one development board featuring an ESP32-S3, an 8×8 RGB LED matrix, and an onboard QMI8658 IMU. Its compact design made it possible to build the entire project without additional hardware, keeping the electronics simple while delivering a polished final product.
If you'd like to build your own PrismCube, you can find the same development board here: Purchase Here
Georgiana Denisa
RealCorebb
James Cannan
Albert Latham