[Dave] posseses an ASUS tablet PC that has a minor issue. The unit is charged using the docking connector’s USB cable when connected to a special wall transformer. The issue is that the wall unit has a tendency to overheat, and is shut down by a thermister inside to prevent permanent damage. The word on [...]
13 Jan
23 bucks. That’s all this little pen-testing gadget will cost you. And there really isn’t much to it. [Kevin Bong] came across the concept to utilize a Wifi router as a bridge to check a wired network’s protection remotely. He got a TL-WR703N router from TP-Link, a usb drive, along with a mobile phone battery [...]
12 Jan
Temperature and humidity measurements certainly are a great add-on to a lot of hobby projects. However [Rajendra Bhatt] makes the point that lots of these types of sensors possess a price tag that is definitely very well above what many hobbiests are able to invest. He thought to take an in-depth look at the DHT11 [...]
11 Jan
A high school junior from Massachusetts named Daniel Kramnik submitted an entry for Water Quality Science Olympiad event. His project is an award winning Digital Salinometer. This electronic solution has a theoretical accuracy of +/-0.0014% salinity, but some serial dilution is required to bring the sample into its range. ORIGINAL ARTICLE: http://hackedgadgets.com/2012/01/11/diy-digital-salinometer/
02 Jan
[Grenadier] is no stranger to high voltage – we’ve seen his Jacob’s Ladders and Marx generators. Now this time around, he created his very own x-ray machine. He could definitely handle high voltage and dangerous equipment and with this portable x-ray machine, [Grenadier] has begun overloading Geiger counters. Coolidge tube is the main component of his [...]
31 Dec
Make your New Year’s Eve celebration memorable and exciting by creating a mini version of a ball drop. All you need are five ping pong balls, each backlit by a 10mm LED. The balls are lit one at a time by an Arduino, which illuminates each one for 15 seconds while the final minute of [...]
29 Dec
Would you believe that you don’t have to spend big bucks to automate your home using voice command? Yes, you only need few popularly used components for this amazing project like: a VRbot voice recognition module an AVR ATtiny2313 a 433MHz RF send module low-cost wireless light swiches (or relays) The core of this project is [...]
26 Dec
Wondering what to do with the Christmas lights you used for decoration this year? Well [Andrew] will show us one way to reuse all those strands of Christmas lights. [Andrew] helped a friend design a stage props for a local musical and ended up using his skills to build a lighted sign with some animation [...]
21 Dec
How can you tell if you’ve been mortally wounded by your opponents light beam while playing boisterous game of flashlight tag? A flashlight tag damage sensor which is worn by each participant is the solution given by [Kenyer]. This gives a high-tech equipment used with laser tag while keeping a low-tech price tag. The equipment relies on [...]
19 Dec
[Bill Porter] has designed a very simple home security system for a friend. The gadget relies on Xbee modules to alert a base station when doors are opened, or a pressure mat is stepped on. The door sensor is equipped with a very simple design. One part mounts to the door and has a magnet [...]
14 Jan