Matt Jenkins Dragino-chipKIT-Yun Yum Yum... My latest acquisition, the Dragino Yun Shield is actually quite a nice bit of kit. It's the Linux portion of an Arduino Yun placed on a shield, so you can attach it to any board of your choosing. It p... 24 May 2023
Matt Jenkins Top 6 Things Every Engineer Needs So many people starting out in electronics, especially beginning to dabble in the world of Arduino and similar boards, just don't have the basic equipment to do the job properly. And not only that, th... 24 May 2023
Matt Jenkins Fast, Efficient Data Storage on an Arduino Logging data on an Arduino is very much a trivial every-day task. Connect an SD card, open a file, and start printing data to it. For many people that is good enough. It results in nice easily readabl... 24 May 2023
Matt Jenkins Making your boards unique on Linux I don't know about you, but I have a huge pile of different Arduino-like boards here. (I have so many because I need to test UECIDE with them - or that's what I tell the "bank manager"). Many is the t... 24 May 2023
Matt Jenkins Measuring Arduino Internal Pull-up Resistors The Arduino (and many other boards) have a very useful time-and-cost saving feature ideal for when you are working with buttons and switches - namely internal pull-up resistors on the GPIO pins which ... 24 May 2023
Matt Jenkins eBay Volt/Amp LED Meters I thought the other day I would grab a couple of these cheap little LED volt & amp meters modules you see on eBay. 30V, 10A, red and blue LED displays. Funky little things. I felt I should take a loo... 24 May 2023
Matt Jenkins Diagnosing Arduino Problems in Linux Getting Arduino and Arduino-like boards working properly under Linux can be a troublesome task if you are not familiar with how Linux works. So I am going to introduce you to some of the basic tools y... 24 May 2023
Matt Jenkins Dangers of Counterfeit Power Supplies I thought I would take a look inside a power supply that I suspected was a counterfeit. See just what is going on with it. This Samsung power supply was making strange things happen with my phone whil... 24 May 2023
Matt Jenkins Why You Can't Use Resistors as a Voltage Regulator People, all the time, use a simple resistor-based voltage divider to change 5v into 3.3v. You see it all over the place. For instance, when you want to get your 5V Arduino to communicate with a 3.3V E... 24 May 2023
Matt Jenkins Flexible LED Fading I'd like to introduce you to a method of fading RGB LEDs both smoothly and flexibly. A common method of fading colours on the Arduino is to use simple for loops, such as: // fade from blue to violet f... 24 May 2023
Matt Jenkins Cheap 433MHz Transmitters I decided the other day that it would be a good idea to spend 99p on a 433MHz transmitter and receiver pair from eBay. Not to use, but to take a look and see just how bad these modules are (and I expe... 24 May 2023
Matt Jenkins The Importance of Sharing Grounds A lot of the time on the Arduino forums we get questions regarding wiring things together. One common format is: I want to connect my 12V powered LED strip to my Arduino but I can't get it to communic... 24 May 2023