UV resin based mUVe 3D Printer releases source files:
The mUVe 1 3D Printer, an open UV resin based 3D printer was successfully funded on indiegogo back in April. As estimated, the first Ultimate kit was shipped out on Jun.20. Last weekend the team has completed building and shipping all of the Ultimate kits. Meanwhile Dean Piper, the maker behind the mUVe 1 3D Printer project, has shared all of the source material on their website
UV resin based mUVe 1 3D Printer source files released - [Link]
Mats continues his challenge of designing one PCB every week. In week 12 he came up with BB Prince, a small multi-purpose utility for your solderless breadboard:
This PAW is a small utility board for your breadboard that have some of the most common things you need when building a microcontroller-based project on the breadboard. It’s a small (2.5×1.5cm / 1×0.6”) PCB with a Power Led, a Reset button with a pullup and goes low when pressed, a Signal button with pulldown that goed high when pressed and two general Indicator Leds that are connected to ground via resistors.
BB Prince – breadboard utility PCB - [Link]
Boris Landoni writes:
It’s small but packed with features. The GSM alarm we present today, sports a PIR motion sensor, can be battery operated and it’s capable to communicate via GSM. It can transmit alarm conditions and receive commands from remote. It’s also capable to indicate problems such as is insufficient voltage supply or tampering.
It’s not so conventional for antitheft system: to integrate a movement sensor, a PIR motion sensor and a temperature probe in a single appliance: all this accompanied by an SMS sending GSM / GPRS module. This circuit was born as a very versatile, ready to use, built-in alarm system: no installation is required, you can just drop it and it’s ready to work. It’s not by chance that is designed to be battery operated: it also features a battery state control to check the power.
GSM Multifuction Alarm with SIM900 - [Link]
patrick @ plainlystated.com writes:
I bought an antique telegraph sounder a while back, and I’ve been working on a project that will click out emails from my Etsy store when I get an order. I’ve gone through several generations, and come up with something I really like. What follows is a description of my process for going from concept to finished piece. The code & PCB are open-source, and can be found on my github.
Generation 1 – Paper
The end goal I had in mind was to be able to push messages over the network, and have the telegraph sounder tap them out in morse code …
Concept to Finished Piece – Generations of an Electronics Project - [Link]
iFixit dives into their 5th Gen iPod Touch 16 GB teardown with the usual gusto–here are excerpts.
Teardown: 5th-gen Apple iPod Touch - [Link]
Asgard build this Rapper project:
What this is, is a small device that records a command sequence for a TV remote control, then emits the same sequence when activated by a pulse detected in a piezo transducer. Such pulse can be as simple as rapping your knuckles on the table where the Rapper is placed. Typically the Rapper would record the mute control for the TV, so that you can run to get the phone without having to hunt down the remote control for the TV. Cute, eh?
Rapper project - [Link]
Have you ever wanted to send data from a sensor or project wirelessly? This simple circuit allows you to build your own wireless transceiver using two ICs, a transistor, and two resistors. The IC is from Melexis and uses On-Off Keying modulation and can be battery powered.
Here is the circuit.
DIY Wireless Data Transceiver - [Link]
Recently many little boards running Linux appeared across the globe. These boards may prove useful for many projects and for teaching Linux OS to any enthusiast out there. But how we got there? Read about the road to development of these embedded computers. (by Publitek European Editors)
Linux has long been on the edge of breaking into embedded systems, but one barrier has been the lack of affordable development boards with fast enough processors and large enough storage to cope with Linux. In the last few years, the situation has changed and there are a number of low-cost development boards, each with an array of plug-in peripherals and carrying processors with the power and memory to comfortably execute Linux-based applications. This article will look at BeagleBoard/BeagleBone and PandaBoard. It will also look at a manufacturer’s approach to the same problem – The Freescale Tower development system with a special emphasis on the MPC8309 PowerQUICC II Pro processor.
Linux and the Road to Development - [Link]