[Jeri Ellsworth] is back at it again. We seem to cover her work a lot here. Her latest video above covers how she created a point contact transistor from a 1N34 germanium cat whisker diode. After opening the glass casing on the diode, she uses sharpened phosphor bronze metal from common electrical connectors as the collector and emitter. A 330 microfarad capacitor charged to 20 volts and then … [Read more...]
Kilobuck Open Kinect Project Prize
November 4, 2010 By 83 Comments
Full of video and audio sensors, the newly released Kinect is Microsoft's answer to Nintendo's Wii MotionPlus and Sony's PlayStation Move. Now there is money up for grabs to hack it. Adafruit is offering up a one thousand dollar prize to open source the driver for the Kinect. What do they want this driver to do? They want RGB and distance values. We're excited to see the hacks that will come … [Read more...]
Test Beds and Jigs with Pogo Pins
November 4, 2010 By 19 Comments
Pogo pins - spring-loaded pin contacts are pretty fun to play with and even cooler when they get used in electronic devices like Adafruit and SparkFun's test jigs. Check after the break for how these two companies have created their own production hacks. … [Read more...]
How-to: Program PICs using Linux
November 3, 2010 By 79 Comments
Arguably, Microchip's PIC microcontrollers do not get enough posts here. One of the drawbacks for some of us is that Linux support for PICs is not very well known. The information is out there, but no one has laid out the process of going from writing C code to programming a chip. Written for Linux users that are familiar with microcontrollers, basic circuits, the C programming language, and can … [Read more...]
Arduino UNO and Mega 2560
September 27, 2010 By 29 Comments
The Arduino Team presented some new products at Maker Faire this weekend. It's a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip. Allowing an Arduino to become nearly any kind of USB device. A fourth mounting hole has been added to the UNO for more stable mounting. The … [Read more...]
World Maker Faire New York 2010
September 20, 2010 By 18 Comments
A quick heads-up to those of you that will be at the New York Maker Faire and the Open Hardware Summit.One of our writers, [Devlin Thyne], will be there checking out projects and handing out Hack a Day stickers. Be sure to stop him to say hello and maybe show off your projects. We look forward to seeing you and your projects. … [Read more...]
BeagleBoard Cluster
September 7, 2010 By 46 Comments
What do you do after you make a BeagleBoard graphing calculator? [Matt] over at Liquidware Antipasto made a BeagleBoard Elastic R Cluster that fits in a briefcase. Ten BeagleBoards, are connected to each other though USB to ethernet adapters and a pair of ethernet switches connected to a wireless router. The cost for this cluster comes in around $2000 and while consuming less than 40 watts of … [Read more...]
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