Apparently measuring the flow of liquids can be difficult. This circuit displays the square wave from a SwissFlow sensor. This project was used this for monitoring the cooling system on a computer, but it could be useful for a lot of projects. This schematic is meant to digitally display the output of an electronic Swissflow […]
This “Noise Box” is based on the gating properties of the 4066 Quad Switch and is amplified with an LM324 Quad op-amp to produce some truly horrifying noise. “Sound” would be too pretty a word to call the sonic mess this device creates. The project runs off of two sets of 9 volt batteries while […]
This “Ghetto Drive” was built by taking the innards of an Iomega external USB2/Firewire drive and implanting them into an ordinary cardboard box. The drive was built because the fan broke in the original enclosure and like a true maker, this one decided not to shell out the cash for a new one. The Ghetto […]
This is a nice how-to for interfacing an SD card and an Arduino. The forum post has a link for the necessary library and the schematics. There is also some sample code to get you up and running fast. Read more on How to read/write an SD card via an Arduino Related: AVR based USB […]
Wow, what a great idea! This is a simple way to keep some of those extra cords organized. We all have a bunch of extra cords that seem to fall behind the desk, or just get in the way. I will definitely be adding this to my “things to do” list. Learn how to make […]
This looks like an excellent all-in-one solution for those wanting to get started in DIY guitar effects fast. The Beavis Board kit comes with pretty much every necessity for development – A true-bypass i/o breakout box that makes it easy to connect circuits to the real world, i.e. your guitar, amps and pedals A pair […]
This is a great project to do with your kids. All you need is water, salt, ammonia, and liquid bluing to grow your own crystal creation. Don’t expect immediate results. This video was shot over the course of a week. Via – YouTube
