Hacking in Cameroon for profit and entertainment

IMG_4917

[Bill Zimmerman] is in Cameroon and has been posting some really interesting articles about life in the central African nation. It comes as no surprise that imported goods can be prohibitively expensive for many of the country's residents, so building tools and goods is way to improve life and save money. The image above is a metalworking cooperative where any number of products are manufactured … [Read more...]

7400 drum machine is a delight

7400-drum-machine

[74hc595] just finished his entry in the 7400 logic contest. It's a drum machine built entirely from 7400-series logic chips. He hasn't quite reached full completion of the project yet. The hardware works just fine, and he's built a foam core face plate with many more controls than you see here but much of the circuit is still on a breadboard at this point and only two of the channels have been … [Read more...]

Going RGB with 7 segment displays

RGB7

We can order seven segment displays in red, green, yellow, or blue all day long. One thing we haven't seen is an RGB segmented display, so [Markus]' project is really interesting. He took a stock seven segment display and modded it into an RGB display. After taking a Dremel to the back of the stock display, [Markus] was left with a seven segment light mask. A few SMD LEDs were purchased through … [Read more...]

Weekly Roundup 10/22/11

ru10.22.11

In case you missed them the first time, here are our most popular posts from the past week. Our most popular post of the week was about a ball that has a matrix of 256 LEDs encrusted onto its surface, allowing all sorts of patterns to be displayed. Next up is a post about the vibrator shield for the Arduino. If you must mix sex and nerdy things, this is one route to happiness. This post is … [Read more...]