Leafi a Leaf-shaped Air Quality Sensor

Leafi is a leaf-shaped air quality sensor designed to raise awareness about indoor pollution in a fun and educational way. Powered by an MQ135 sensor and a WS2812B LED strip, Leafi visualizes air quality in real time by transitioning from green to red—green when the air is clean, red when it's polluted. It also features multiple lighting modes, including ambient animations and a relaxing "lounge mode", with adjustable brightness to match any atmosphere. Fully open-source and 3D-printed, Leafi is eco-friendly, customizable, and perfect for makers, educators, and anyone who wants to make the invisible visible.