this is a DDS Funtion Generator by Theodorou Gerasimos: DDS chips are readily available, greatly simplifying the design of the analog part of a wide-range function- or signal generator. All you need to do (they say!) is choose one, add some suitable output circuitry, pick a...

With plug-in enclosures from Fischer Elektronik, it´s easy to solve placing your device into a 19“ „rack“. What enclosure to use for your electronic device and how to sort them when there are several ones on one place? That´s the question reaching almost to beginnings of...

By Jon Gabay @ digikey.com: Determining the state of our health has always been a matter of finding a way to monitor and measure the body’s most basic functions. Before instrumentation, visual indicators were used that allowed us to know, for example, what our body temperature...

by jckelley @ instructables.com: If you work in a company that has a website, you know how important it is that the website always be up and running. That's why you constantly see "99.99999% reliability!" all over the fancy server hosting sites. A website can't make money if the...

This is an internet speed Analyzer based on Raspberry Pi: This application will run speedtest-cli against speedtest.net's servers using cron. It will then email the results daily and weekly. Also - using http://www.percheron-electronics.uk/shop/ e-paper hat - you can utilize the...

by masteruan @ instructables.com: This tutorial will explain how to build a machine for biofeedback. But first a bit of theory. What is biofeedback? Biofeedback is the process of gaining greater awareness of many physiological functions primarily using instruments that provide...

This project is a simple wrist mount digital altimeter which is a device used to determine altitude. This design uses atmospheric pressure to calculate the altitude of its location. The lower the atmospheric pressure, the higher the altitude. The project is comprised of a...

Josh from Colorado build a nice dashboard for this motorcycle based on ATMega128 and EPSON S1D13700 LCD Screen: Since the GSXR is now a street fighter the factory gauges won’t do, and I wanted something I could log air/fuel ratios with so I can jet the bike. I went a little...