Category Archives: Arduino

Running an Amtel (arduino) without a Crystal

Posted on February 25, 2014 by robertwilkie

The author does a nice job on writting up how to use an internal clock with the Amtel chip, eliminating the need for a coupld of cap’s and a crystal. I haven’t tried this myself, but it would be worth … Continue reading →

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Drawing with an R/C car

Posted on February 25, 2014 by robertwilkie

OK this was just too much to not post up. I can totally see building this simple hack for kids to draw on the street. Maybe get them interesting in tech too. Only difference is I think you could get … Continue reading →

Posted in Arduino, Cheap, Teaching and Learning, Tinkering | Comments Off

Neat LED bracelet

Posted on February 24, 2014 by robertwilkie

Nice LED bracelet that the author first 3D printed. Then added an atiny and an accelerometer so you could change the LED lights/pattern by shaking it. Down side…the material to build this is a bit pricey. And you need a … Continue reading →

Posted in Arduino, CNC/3D-printing, Teaching and Learning | Comments Off

Random numbers with AVR

Posted on February 13, 2014 by robertwilkie

Interesting article where the author created a library to run on an AVR Tiny for random number generation. http://hackaday.com/2014/02/10/the-two-component-random-number-generator/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29

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Now this is a running jacket

Posted on January 29, 2014 by robertwilkie

The author wrote up a nice tutorial on adding LED strips to a jacket that can change color and pulse based on your pulse. It can do other patterns as well. My take, this is very bright and would be … Continue reading →

Posted in Arduino, Cheap, Misc-Life, Teaching and Learning | Comments Off

How to use KTM LCD module with Arduino

Posted on January 24, 2014 by robertwilkie

Nice write-up on how to use one of these LCD modules. KM are caclulator like displays. http://tronixstuff.wordpress.com/2013/03/11/arduino-and-ktm-s1201-lcd-modules/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TRONIXSTUFF+%28t+r+o+n+i+x+s+t+u+f+f%29

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Chameleon smartcard emulator

Posted on December 28, 2013 by robertwilkie

Interesting hack, the hardware looks pretty nice and compact too. I should note that there are hundreds of different types of “smartcards” out there, and this is just emulating the contactless ones (and a subset at that). Still if … Continue reading →

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3D printer for Jello Shots

Posted on December 25, 2013 by robertwilkie

I saw this about a month ago, Its basically a take on the CD ROM to CNC conversion. As I have found out, most CD-ROM drives use DC motors now so finding ones with steppers is hard. http://www.engadget.com/2013/12/26/3d-jello-shot-printer/ http://spritesmods.com/?art=jello3dprinter&f=yt … Continue reading →

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Salvaging Liquid Crystal Displays (LCDs)

Posted on December 24, 2013 by robertwilkie

Nice write-up on salvaging LCDs from devices (like printers) for use with other circuits. The author does not point out that he was lucky getting the datasheets for these displays. I have searched high and low for many LCD’s I … Continue reading →