DIY Ten Step Sequencer
ITP students Mark Kleback and Ezer Lichtenstein designed and built a ten step sequencer that can be linked to other sequencers running on the same clock speed.
circuits
Birchwood and Hammer Synthesizer
Niklas Roy created this whimsical synthesizer from a hollowed out birch log. Using an ATMega8 as the tone generator, the design of the device is quite simple but charming in its execution.
New in the Maker Shed: Perma-Proto Boards
Have you ever had one of those “why didn’t I think of that” moments? I had one the first time I saw Adafruit’s Perma-Proto Breadboards, now available in the Maker Shed.
555 Memorial Circuit
To mark the passing of Hans R. Camenzind (designer of the 555 timer chip), MAKE reader Jim Frize freeformed this lovely little oscillating circuit as a solemn tribute. More: See all of the posts for 555 Week.
Weekend Projects – Bottle Radio
Complete instructions for this episode of Weekend Projects can be found at
http://makeprojects.com/Project/Bottle-Radio/2077/1
Crystal radio technology has been around for many years. This “bottle radio” take on a crystal radio requires no power source, operates on the power from radio waves, and receives signal from a long wire antenna. As radio stations slowly move away from the AM band, the “window of opportunity” to experience this remarkable technology is dwindling. The “crystal” in question is contained inside a germanium diode, and is used to rectify the radio signal so that our ears can hear it.
Weekend Projects – Sun Logger
Complete instructions for this episode of Weekend Projects can be found at
http://makeprojects.com/Project/Sun-Logger/2275/1
Our second Arduino project in this series of Weekend Projects, the Sun Logger is a device that gathers data about sunlight. Hack a light-sensitive photoresistor to a homemade “shield” to record data to an SD card, and then examine this data later on your computer to see how light changes in an area over time.
Weekend Projects – Little Big Lamp
Complete instructions for this episode of Weekend Projects can be found at
http://makeprojects.com/Project/Little-Big-Lamp/2310/1
Combine your shop skills and your soldering skills to fabricate your very own desk lamp! Using hardware store-bought PVC and some electronic components, design and build this classic light fixture. Based on an earlier project, Little Big Lamp has been updated to take advantage of new and improved technology. This build will also introduce you to wiring LEDs in series and the principle of Pulse Width Modulation.
