Step-a-sketch

January 4, 2010 By 13 Comments

[Chris] is getting his feet wet with Computer Numerical Control starting with an Etch-a-Sketch interface. This is a great way to start out because the really tough parts of the project are already inside of the toy. He’s replaced the two white knobs with stepper motors and connected them through a mosfet network to a PIC 16f84a. The PIC … Read the rest

Filed Under: cnc hacks, toy hacks Tagged With: , , , , , ,

Tiny GSM alarm system

September 1, 2009 By 20 Comments

We’ve covered this sort of thing before, but there is something to be said for the simplicity of this tiny GSM alarm system by [trax]. The alarm system is designed to send the owner a text message when a sensor is triggered. This alarm only works with Siemens phones, but it shouldn’t be too hard to find one.  The … Read the rest

Filed Under: Cellphone Hacks, classic hacks Tagged With: , , , , , , ,