LED Light Bulb Teardown
Ever curious to see what’s inside those everyday objects we take for granted, EDN’s Margery Conner tears apart the AmbientLED light bulb from Philips to see what makes the oddly yellow bulb emit a white light when lit.
Technology
Versatile Lasercut Turtle Robot Platform
Doug Fennell of Horn Lake, Mississippi, just sent us a link to this good-looking two-wheeled coasterbot-style “puck” ‘bot chassis he designed to be laser-cut from 4mm acryli
In the Maker Shed: LoL Shield
The LoL (Lots of LEDs) Shield is a charlieplexed LED matrix for the Arduino. The LEDs are individually addressable, so you can use it to display anything in a 9×14 grid. Scroll text, play games, display images, or anything else you want to do.
One-Motor, All-Mechanical Obstacle Avoidance
OK, obstacle “reflectance” might be a better term, since this Lego Automatic Synchro Drive from YouTuber xyzzzach bounces off of obstacles, rather than actually avoiding them. But its design is so clever it deserves a bit of nomenclatural slack, IMHO.
MAKE Flickr Pool Weekly Roundup
Leading off this week’s MAKE Flickr Pool round-up is amateur chemist Hayden Parker’s high-speed shot of a glass blown apart by the high explosive silver acetylide, which Hayden prepared himself. Don’t try that at home, kids.
Stereo Panel Controls Bonkers Living Room Lighting Scheme
Here we have Arduino Forum contributor Marklar sharing his intense Arduino-based RGB LED home lighting scheme, which uses an old stereo front panel to control the different chase patterns within the crown moulding of his living room. The intensity and color of the lights can be manually controlled with the stereo’s rotary encoder to suit […]
The Call Someone Who Cares Button
Based on The Awesome Button, Les made a one step boss dialer by hooking an emergency button into his employer’s IP telephone system. Inside the button is a Teensy board, which connects to his computer via USB. A C# app on his computer listens for the pause/break key from the Teensy and makes an HTTP […]