Looks like there is a new DIY PCB Etching Solution. If you have some Hydrogen Peroxide, Distilled White Vinegar and Salt you are ready to give it a try. Via: NBitWonder “Vinegar – Distilled White Vinegar – diluted with water to 5% acidity (Meijer) Peroxide – 3% solution (Meijer) Salt – to taste. (Just keep adding it until the “fizzing†continues all by itself). Hydrogen peroxide is what
The prize this week is a loupe magnifier, this will let you get a close look at whatever you are working on. This contest will run for one week (April 9Â – 15, 2011). Ending time is based on central standard time. To enter, identify the molecule pictured above. Please do not give the answer in the comments. Send an email to contest @ hackedgadgets.com with “Name the Thing Contest”
Check out this Huge Nixie Clock that Jaroslaw Lupinski built after being wowed by the Union Square clock. I also love clock projects since there is lots of interesting changes just by being a clock. Thanks for the tip Peter. “The timekeeping circuit is identical to my previous nixie clock: an Atmega168 controls the show, with a DS1307 keeping time. The only difference is that the sheer number of tubes
The guys from Sparkfun went on their second trip to China. They checked out some of their suppliers and lots of the markets. Via: Dangerous Prototypes “While there were shops and floors for all sorts of electronic goods, Bunnie had heard of a special market that dealt exclusively with bulk cell phones. That’s right, you could buy a pile of cell phones. Heck yes we needed to see this! This
The IR Jammer has been selling very well and is also available in the Maker Shed. PCB Heaven was kind enough to kick the tires and do a full review on the IR Jammer. “Alan’s IR R-C jammer does exactly this. It has 4 powerful IR LEDs that are driven with pulses of specific frequency. One excellent feature of this Kit, is that it does not transmit one single frequency.
The ALS EEG Project is being held in Ort Hermalin Collage in Natanya Israel by Alon Bukai and Ofir Benyamin under the guidance of Amnon Demri. Another video is here. Thanks Amnon. “Our system works by use of a helmet which reads EEG signals sent through the brain. These signals are then interpreted by the headset and sent to the laptop attached to the ALS Patients’ wheelchair. From here the
Check out the latest Analogue to Digital Conversion Interrupts on an ATmega168A tutorial over at Protostack. You might not need the information today but it will probably come in handy some day! “In this tutorial we add a second analogue input and use the ADC Conversion Complete interrupt. The circuit we are using is similar to what we used last time but has an extra trimpot and uses an ATmega168A
