TL;DR: In a nutshell, I’ve accidentally built a software system that makes it easy for YOU to:
build your own small internet-connected printers,
produce customised content for them, and
share that content with other people who also have small internet-connected printers.

Jonathan Ward from the MIT Center for Bits and Atoms has designed a snap-together, desktop-sized CNC milling machine. The MTM Snap (part of the Machines that Make project) is made from 1/2-inch high-density polyethylene (HDPE) – itself milled on a ShopBot – and can be assembled for about $700. This three-axis CNC machine can mill circuit boards, wax molds, and harder materials in a 5x3x1.75″ working area.

Arduino RTTY with a 425Hz shift with a Radiometrix NTX-2

Designed to provide most of the NMEA GPS functionality I imagine an Arduino user would want – position, date, time, altitude, speed and course – without the large size that seems to accompany similar bodies of code. To keep resource consumption low, the library avoids any floating point dependency and ignores all but a few key GPS fields.

Rather than have the Arduino keep track of when to perform the next task, you have an outside signal that says “Now!” and fires an interrupt which the Arduino responds to. If your source fires every 100 milliseconds, then 10 times a second, the Arduino will receive an interrupt which will stop any processing currently happening and immediately execute the interrupt handler. For every tick of the clock, the interrupt handler will execute.

By reading the gyro data of the new wii motion plus peripheral with the arduino microcontroller, we are able to create a 6 DOF IMU for under $40

The mechanical bit is quite simple. The clock functions in a similar fashion to a stepper motor, in the sense that you charge an electric coil to get the mechanical bit to move forward a precise amount. In this case, each firing moves the second hand one second position forward (and makes the familiar tick noise). To ‘fire’ the electric coil, you simply put a voltage across it. The only complicated bit is that you actually have to reverse this voltage to advance the clock to the next step.

Been thinking about doing this for a while #ukhas

BakerTweet is a way for busy bakers to tell the world that something hot and fresh has just come out of the oven. It's as simple as turning the dial and hitting the button. All of the baker's followers get a Twitter alert to tell them that it's bun-time. Or bread time. Or whatever. Cooooool.