Build a pocket-sized CO2 and particulate air quality monitor using an ESP32 and off-the-shelf sensors
Portable air quality monitors empower you to measure what you breathe anywhere. This compact project tracks CO2 and particulate matter with reliable sensors. An ESP32 handles data, display, logging, and…
Turn a scrap e-bike hub motor into a DIY backyard wind turbine that trickle-charges a home battery
A discarded e-bike hub motor can become a useful wind generator. The conversion requires basic tools, patience, and careful planning. With a small rotor and smart electronics, it can trickle-charge…
3D-print a customizable split ergonomic keyboard with hot-swap switches and wireless QMK support
A split ergonomic keyboard can reduce strain, improve posture, and boost typing precision. Add hot‑swap sockets and you gain hassle‑free switch experimentation. Combine those with wireless capability, and you unlock…
Build a compact, fold-flat solar cooker from reflective emergency blankets and wire hangers
Sunlight can cook meals without fuel, smoke, or noise. With simple materials, you can build a capable solar cooker. This design folds flat, packs light, and sets up quickly. Reflective…
Make a compact foldable hydroponic tower from PVC pipe and 3D-printed joints for small-apartment growers
Small apartments can support serious growing with a compact foldable hydroponic tower. This design delivers vertical yields while folding for storage or cleaning. You can build it with common PVC…
Designing biodegradable sequins from plant cellulose for high-shine, microplastic-free fashion
Why Fashion Needs Microplastic-Free Sparkle Fashion loves sparkle, but plastic sequins shed persistent microplastics during wear and washing. Conventional sequins often use PET, PVC, or acrylic polymers. These materials fragment…
Build a compact, self-watering indoor herb tower with 3D-printed drip emitters and a $25 smart plug timer
A compact herb tower brings fresh flavors to your counter without daily watering chores. You can automate irrigation using simple parts and a budget smart plug timer. The tower uses…
DIY: Build a compact solar-powered battery bank with a modular 3D-printed case and smart BMS for off-grid charging
Portable energy unlocks freedom for camping, work sites, and emergency preparedness. A compact solar-powered battery bank provides reliable off-grid charging for everyday devices. You can build one with a modular…
Build a solar-powered window herb dryer with 3D-printed airflow vents
Dry your garden herbs using sunlight, steady airflow, and a clever window insert. This project turns a sunny window into a gentle, solar-powered dryer that preserves aroma and color. You…
Build a compact modular LiFePO4 solar generator with foldable panels and a smart BMS for reliable weekend off‑grid power
A compact LiFePO4 solar generator can power weekend trips without noise or fumes. You can build a modular system that packs easily, charges quickly, and runs common gear. Foldable panels…