§ Ideas · Build something this weekend
Ideas — project guides for builders
A new project every two days — Arduino kits, tiny AI experiments, recycled phones and old laptops put back to work. Each guide is full step-by-step, from parts list to last screw. Filter by age and difficulty and start.
8 ideas
- Old PhonesBeginner · Ages 13–17 · 30 minutes
Turn an old Android phone into a home security camera
That dusty phone in your drawer still has a camera, a CPU and Wi-Fi. With one free app and a USB charger you get a 24/7 motion-detecting camera streaming to your current phone — no subscription, no new hardware.
#recycle#security#android#no-costRead guide → - ArduinoBeginner · Ages 13–17 · 2 hours
Arduino soil-moisture plant alert
A $3 sensor and an Arduino tell you when your plant is thirsty — with an LED that goes red, or a buzzer if you're really forgetful. Classic first electronics project that teaches analog input.
#electronics#starter#gardenRead guide → - AIBeginner · Ages 18+ · 30 minutes
Run your own AI chatbot, fully offline, on your laptop
No API key, no monthly bill, no data leaving your machine. With Ollama and a 4–8B parameter model, even a 5-year-old laptop can run a useful assistant for code, writing and Q&A.
#ai#privacy#offline#ollamaRead guide → - Old ComputersIntermediate · Ages 18+ · An afternoon
Repurpose an old laptop as a home media server
Stop paying for cloud storage. An old ThinkPad, a USB hard drive and Jellyfin = your own Netflix for movies, music and photos, accessible from every device on your network.
#recycle#linux#self-hosted#jellyfinRead guide → - IoTAdvanced · Ages 18+ · A weekend
Voice-controlled LED lamp with ESP32 + AI wake word
Say 'lamp on' and the light comes on — no Alexa, no cloud. The ESP32 listens locally with a tiny on-device wake-word model. Equal parts hardware, firmware and machine learning.
#esp32#ai#voice#tinymlRead guide → - IoTIntermediate · Ages 18+ · 1 hour
Block ads on every device with a $35 Raspberry Pi
Pi-hole is a DNS-level ad blocker for your whole house. Phones, smart TVs, console games — everything served from your router gets ads stripped before they ever load. Works in 20 minutes.
#raspberry-pi#network#privacyRead guide → - WebBeginner · Ages 13–17 · A weekend
Ship a personal website this weekend
A real domain, a real site, a real link in your bio — built from scratch with HTML, CSS and one cheap domain. No tutorials, no frameworks, just the actual web.
#web#html#starter#portfolioRead guide → - Old PhonesBeginner · Ages 8–12 · An afternoon
Build a stop-motion studio out of cardboard and an old phone
A shoebox, a desk lamp, that old phone again, and a free app. By Sunday night you have a 30-second animated clip — and a real intuition for framing, lighting and patience.
#recycle#creative#kids#videoRead guide →