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Build Your Own Variable Lab Bench Power Supply
AVR Programmer Shield
Make a Contact Microphone
Mosquito Killing Ovitrap
ESP8266 Web Server (Without Arduino)
A high-power LED torch using a single AA-battery
Joule Thief Low Voltage Battery Charger
Stay warm this winter: CPU Hand Warmer
How to Convert Water into Fuel by Building a DIY Oxyhydrogen Generator
Build The Ultimate LED Lamp (Li-ion)
Loading Message Card
File Transferring in Emergencies
Microcontroller Register Manipulation
EWaste 60$ 3DPrinter
ARDUINO SOLAR CHARGE CONTROLLER ( Version 2.0)
Irrigating your garden with an opamp: The circuit, list of materials
Make hobbyist PCBs with professional CAD tools by modifying "Design Rules"
Hack a $30 WiFi Pan-Tilt Camera - Video, Audio, and Motor control with Python
Nitrogen gas generator
Make a Graphene Supercapacitor
Is the best PCB etchant in every kitchen ?
Survival USB Charger: Use any power source to charge your smartphone
Impowered electrical outlets
How To Quickly Find And Trace PCB Tracks
Nerf Vulcan Sentry Gun
How to Make a Solder Buddy (from sheet plastic)
Super Nightvision Headset Hack!
The Forever Rechargeable VARIABLE Super Capacitor Battery !!!
Adjustable Voltage Step-up (0.7-5.5V to 2.7-5.5V)
Add a custom programmer on Arduino IDE
Thermoelectric Fan Powered by a Candle
DIY Google Glass AKA the "Beady-i"
Build your own EL wire power supply