Measuring just 0.9×0.6×0.3mm (50 % smaller than a conventional 32.768 kHz crystal resonator), the WMRAG series 32.768 kHz MEMS resonator is the world’s smallest, claims manufacturer Murata.... Read more
The Arduino is the ultimate tool in the Maker’s arsenal. You should be able to build your own! In the early days of the project, circa 2005, the design was all through-h... Read more
Relive the fun of early computer game music with an authentic 8-bit chiptune synthesizer, which you can control over MIDI from the comfort of any modern DAW software. This simple circuit use... Read more
Going all the way hack to the heady days of Eee PC modding, hardware hackers have been on the hunt for small USB hubs that can easily be liberated from their enclosures and integrated into w... Read more
My university had a bunch of old server motherboards that were headed to the dumpster. I decided to see the feasibility of turning them into something useful! Go ahead and grab the attached... Read more
Today I’m going to teach you how you can build your own RGB LED Glasses very easily and cheapThis has always been one of my biggest dreams and it finally came true! A huge shout out to... Read more
With all the different ways capacitors are labeled, figuring out the values of your capacitors can be challenging. Especially if you don’t have a digital multi-meter to test them. In this tu... Read more
First steps in circuit design for the budding electrical engineer. San Francisco, CA (October 25, 2018)—A Beginner’s Guide to Circuits ($17.95, 80 pp., October 2018) introduces beginners to... Read more
My MQTT network at home moves up and down a lot of messages: sensor values, triggers, notifications, device statuses,… I use Node-RED to forward the important ones to PushOver and some other... Read more
A recent ebay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server.... Read more
While most of my microcontroller designs run on 3.3 volts there is still the ocasional 5 volt design. Or I do something with an Arduino. So the need may arise to interface between logic work... Read more
Inrush current or input surge current refers to the maximum, instantaneous input current drawn by an electrical device during its initial turn on. Power converters also feature high inrush c... Read more