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Sponsors
Posted July 9, 2014 by Syd
Jameco Electronics is giving away free electronic components on a weekly basis starting this Friday July 11th! The free parts are awarded on a first-come first-served basis so be sure to check Jameco Free Fridays every Friday at 10 a.m. Pacific Time for your chance to win!
Posted June 19, 2014 by Chris
"…Shortly after the handheld Open SciCal got picked up, I got an order for a few Open SciCal’s, hand-made, with the wi-fi attachment, and to be delivered to an address in downtown Manhattan. I did a little more research, and it turns out that they’re going to be used by an actual trading firm on Wallstreet…..I asked for an example in source code, and here it is – very simplified, and coded up for Yahoo finance…"
Posted June 13, 2014 by Chris
"To test whether this was feasable I decided to create small brakout boards for a multiplexer and an atmega. I managed to get a friend interested in this, so together with Marty I designed some simple 1 to 1 pin breakouts for the two ICs."
Posted June 5, 2014 by Chris
"Build this single-sided Xilinx CPLD board at home and experiment with CPLDs and hardware description language (HDL). The source files for the project are in open source KiCad format so you can modify the circuit diagram and PCB if needed."
Posted February 4, 2014 by Chris
"People often use ARDUINO platforms and other microcontrollers (pic, avr) for making a propeller LED display and it is a bit costly to have them. I am trying to make one using AT89S52 microcontroller. I’m using a 11.0592MHz crystal and a 7805 for power supply. LEDs are connected to the PORT0 of the MCU, 8 leds are used for displaying letters….the wheel is attached to 6mm shaft and 1000RPM metal gare motor."
Posted December 25, 2013 by Chris
"Since I had 100 Pink LEDs, I decided to build something LED intensive. So, using a PIC12F629 as the microcontroller, I decided to build a Dual Die Emulator. Each die would consume 7 LEDs, so I would use 14 LEDs total for the project."
Posted December 24, 2013 by Chris
"In this special Christmas edition of Zedomax DIY122, we will show you how to make the geekiest Christmas Tree in the world using LEDs, bathroom pipes, and an embedded cubloc module."
Posted December 15, 2013 by Chris
"In essence, my new business/visit card would need to meet a set of basic requirements: Use a thin, one-side printed circuit board (PCB). Silver plating on black or blue mask. Show contact information – email, phone, URL, and so on. Include the simple LED driver circuit from the DEFCON badge, thus mixing hardware and software into the card. Be about as thin as a normal card. Include a personal motto. Be updatable from the web (uh?)."
Posted November 22, 2013 by Chris
"Ever since I created the 8×8 Led Matrix I wanted to create something bigger. This LED matrix is 16 x 48 LEDs in size. There are 768 individually placed and soldered 3mm green LEDs."