Portfolio

Our work

Every project started as someone's problem. The images are technical drawings for now — photos of real builds will be added as clients give permission.

Smart blinds for Home Assistant

Problem: Commercial motorised blinds cost hundreds of euros per window and required the manufacturer's app.
Solution: A stepper motor unit in a 3D-printed housing, ESPHome control and a position slider in the Home Assistant UI. The same controller scales to multiple windows.
Technologies: ESP8266, NEMA 17, A4988, ESPHome, 3D-printed mechanics
Result: The blinds follow the sun. Cost roughly a third of the commercial option.

Hallway bus departure display

Problem: Checking the bus schedule on a phone every morning — shoes on, hands full.
Solution: An OLED display that fetches the next four departures from your own stop via the Tampere transit API through Home Assistant.
Technologies: WeMos D1 Mini, SSD1306, Home Assistant, Nysse API
Result: Departure times at a glance by the door. No more sprinting to the stop for nothing.

Smart litter box air filter

Problem: Odours spread through the flat before the box gets cleaned.
Solution: A wall-mounted filter unit whose PIR sensor starts the fan right after the cat's visit. The activated-carbon cartridge swaps with a snap.
Technologies: PIR sensor, 40 mm fan, USB-C, parametric OpenSCAD design
Result: An odour-free hallway and a ten-second cartridge change. In development as a small-batch product.

WLED ambient lighting

Problem: The living room lighting was either full-on or off — no atmosphere in between.
Solution: Indirect LED strip lighting with a WLED controller, preset scenes on Home Assistant buttons and a movie mode that reacts to the TV.
Technologies: WLED, WS2812B, ESP32, Home Assistant automations
Result: The lighting adapts to the situation automatically. Even the neighbours asked who built it.

Robotic cat teaser arm

Problem: The cat needed stimulation even when no one is home.
Solution: A compact servo-driven arm that waves a toy in randomised patterns. Started remotely or on a schedule from Home Assistant.
Technologies: ESP32, MG90 servos, 3D-printed frame
Result: A happy cat — and movement patterns unpredictable enough to stay interesting.

Reverse-engineered discontinued spare part

Problem: A hinge broke on a quality appliance and the manufacturer no longer supplies the part.
Solution: The original part was measured, remodelled and reinforced at the fracture point. Impact-resistant PETG was chosen as the material.
Technologies: Calliper measurement, Fusion 360, PETG printing
Result: The appliance was back in use within a week. The new part has outlasted the original.

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