Light a Fire to Access This Post-Apocalyptic Digital Safe
When the end times come, you’ll still be able to download survival guides from this DIY digital cache that’s powered by fire.
charger
Your Favorite Obscure Star Wars Droid Is Now a 3D Printed Charger
The GNK droid from Star Wars is immortalized as this 3D printed cell phone charger.
Maximize Your Solar Charging With a DIY Arduino Controller
Here’s how to build a buck converter using an Arduino Nano (as well as another 28 listed components) to supply the maximum power that you can to your PV cell. This is known as maximum power point tracking, abbreviated MPPT. Photovoltaic (PV) cells produce different amounts of current and voltage depending on light and temperature conditions. […]
Apple iPhone Charger Teardown
Great article by Ken Shirriff on the circuit and build of the iPhone charger. Like most people, I think I have taken this little device for granted for the years that I’ve owned an iPhone. Disassembling Apples diminutive inch-cube iPhone charger reveals a technologically advanced flyback switching power supply that goes beyond the typical charger. […]
Hand powered smartphone charger updated
Back in October 2010 Ben Heckendorn discovered that a hand-cranked LED flashlight had enough juice to recharge his smartphone. He recently revisited this idea on his show and updated the hack by adding a simple voltage regulating circuit using a Zener diode and a 100hm resister. He also added a USB port to plug in a microUSB recharging cable.
Rural celly charger
Image from Women of Uganda Network The Women of Uganda Network has an interesting story of a woman who got scammed at a cell phone charging business. Mrs. Muyonjo is a housewife in a remote village of Ivukula in Iganga district, Eastern Uganda. She used to ride her bicycle for twenty miles in order to […]
Dog-simple phone charging station
Over at the Steampunk Workshop, Jake von Slatt posted this brief item: Here’s a dead simple cell phone charging station I installed next to our main entrance. It’s just a pair of hangers of the sort you’d use in the garage to store a shovel or a rake. If your wall isn’t made of barn-board […]
