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), […]
[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 […]
From the MAKE Flickr pool Solipsistnation posted detailed info for the excellent MeggySeq project (we recently covered) – MeggySeq has 8 patterns of 16 steps each. You can set each of those steps to play one of 8 WAV files on the waveshield. You can play the pattern back, stop it playing, and change the […]
I love all of the amazing boards, Shields, kits and other Arduino components and accessories that people dream up. Here’s a laser-cut control panel board/stand that Blushing Boy is giving away when you buy one of their Smapler-v0002 + ARDUINO Diecimila Kit (for ten buyers). Snap-on Design for Arduino boards
To celebrate 60 days of web traffic on their site, open source kit makers Oomlout created a tangible graph using an acrylic base, hook-up wire, their automatic wire cutter, and some Arduino code. We’d like to think we had something to do with those long wires. 60 Day Anniversary More: Review: SERB Robot kit SERB […]
