Monthly archives: February, 2014

Wireless Charging… Have a Heart

[Gal Naim] recently finished off an awesome Valentine’s day present for special someone. It’s a wireless charging heart for your phone! He already had the Qi wireless charger but wasn’t much of a fan as it “looks so boring”. So he took it apart to salvage the charging circuit for his new project. As luck…


RFID Keepsake Box is Sweet and Secure

[Mike Buss] wanted to make his girlfriend something unique for her upcoming birthday — she had mentioned she wanted something to keep small mementos in, but [Mike] decided to step it up a notch on the awesomeness scale. You see, a few years ago [Mike] read about the Reverse Geocache Puzzle by [Mikal Hart], which…


Coffee is Metal

That is all


Confuse the Birds with this Daylight Simulation System

Hackers love a challenge. So when [Patrick’s] father-in-law asked him to look into a daylight simulation system for his bird breeding cages, [Patrick] quickly discovered the ridiculous prices for commercial systems… so he convinced his father-in-law to let him design and build one instead. Like any project, [Patrick] quickly listed the requirements of the system…


NXP’s ARM Micros With Motor Controllers

It’s still relitavely early in the year, and all those silicon manufacturers are coming out with new toys to satiate the engineer and hobbyist for years to come. NXP’s offering is the LPC1500, a series of ARM microcontrollers optimized for motor and motion-control applications. The specs for the new chips include an ARM Cortex-M3 running…


An Arduino Programmable Load

Having a big block of hot to dump current into is a very useful thing to have if you’re testing batteries, power supplies, high power LEDs, electroplating, or any thing else that would normally require a huge resistor. [Jakub] found himself in need of an electronic load, and instead of a transistor and a pot,…


Vintage DACs And A Raspberry Pi

Before the days of iPod docks in every conceivable piece of audio equipment, most devices were actually built very well. Most shelf top equipment usually came with well designed circuits using quality components, and late 90s CD players were no exception. [Mariosis] heard of some very nice DACs found in some of these units and…


Smart Reflow Oven is Over-Engineered

[Linas] reverse engineered an AMOLED HTC 800×480 screen and interfaced it with an STM32 micro-controller, along with some other components, to make a gorgeously over engineered reflow oven. Under the hood there is a PSoC5LP PID controller to control the 800W IR heating coil and two K-type thermocouples for sensing. The real beauty is in…


This Party Jukebox is Bigger on the Inside

In honor of the recent 50th anniversary of Doctor Who, [David Prouty] decided to build a 1/3rd scale replica of the Tardis. He also decided to give it a few extra features on the inside… Introducing the Recycled Tardis Jukebox!  It was constructed primarily out of recycled cardboard boxes (pizza, FedEx, UHaul, etc) and [David] has…


OpenKnit, the Open Source Knitting Machine

For all the hubbub about 3D printers leading a way into a new era of manufacturing, a third industrial revolution, and the beginnings of Star Trek replicators, we really haven’t seen many open source advances in the production of textiles and clothing. You know, the stuff that started the industrial revolution. [Gerard Rubio] is bucking…