Tim writes in: What are the reasons we see light bulbs made up of lots of small LED’s instead of one large LED? As Collin showed us in his excellent video about the subject, LEDs pass electricity through “dies,” or little chips cut from a larger wafer of semiconductor; there is just a small active […]
Our pals at Adafruit have released kits for their most awesome Tweet-a-Watt, a kit that turns a lonely Kill-a-Watt power meter into a Twittering energy-usage reporter. Now you can tweet your ravenous power hunger to the entire world! The Tweet-a-Watt Starter Kit, with everything you need to create one outlet monitor (minus the Kill-a-Watt unit), […]
Instructables user Saul shows us how to make an easy chalk holder from a piece of bamboo. If there’s none in or around your back yard, maybe they have small decorative pieces at your local import store, or maybe even the thrift store! This should be useful for all you schoolteachers out there who’ve yet […]
MAKE contributor Steve Lodefink has a new toy, the MicRo CNC robot kit, from Lumenlab: The micRo is a 3-axis CNC robot being offered by Lumenlab, the same folks who made DIY video projection accessible to the world. Grayson Sigler, the Brainchild behind Lumenlab (brainchild is also his handle on the inter-tubes) describes micRo as […]
[pic of David Brooks’ photometer kit] In following up on his discussion, on the last episode on Make: Talk, of building Sun Photometers and measuring total column water vapor, Forrest Mims sent me the following info: The instrument that measures total column water vapor is a sun photometer with LEDs that detect at 940 nm […]
From the MAKE Flickr pool Matt the Modulator shares some key solder points on the SX-150 analog synth PCB, allowing for – envelope triggering frequency to voltage output self oscillating filter LFO to filter cuttoff To see the specific points in question, check out the photo’s notes on Flickr. He also points out that the […]
In the Make: Online Toolbox, we try to focus on tools that fly under the radar of more conventional tool coverage: in-depth tool-making projects, strange or specialty tools unique to a trade or craft that can be useful elsewhere, tools and techniques you may not know about, but once you do, and incorporate them into […]
