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Portable Ultrasonic Range Meter

Posted April 29, 2016 by Chris

"Sound is a phenomena that is a result of vibration of materials. Sound is characterized as a mechanical wave that carries mechanical energy. For the transmission of this energy between transmitter and receiver, presence of a medium is necessary. The medium can be solids, liquids or gases."

ASCII-ART Arduino Pinouts

Posted March 27, 2016 by Chris

"To enable easy documentation of pin assignments, I created a couple of ASCII art arduinos; complete with ports, PWM and coms all marked. Simply paste as a comment into your code and marvel at your new found organisation."

ISPnub – Stand-alone AVR In-System-Programmer Module

Posted March 1, 2016 by Chris

"ISPnub is a simple to use stand alone programmer intended for flashing AVR controllers in the field directly in the target system or during production. The module has only one button and two leds as user interface."

How To Write A Library For Arduino

Posted February 21, 2016 by Chris

"Libraries are files written in C or C++ which provide sketches with extra functionality, for example the ability to control an LED matrix, read an encoder, connect to a sensor, display, or module, etc. They are very useful to lower the barriers for creating amazing interactive projects and use a wide range of components. Libraries can be created by everyone and shared with the open source community!"

My Business Card v2 (PCB Card)

Posted January 11, 2016 by Chris

"At the end of this month, I’ll be leaving my current job. I therefore thought it’d be a nice occasion to build a new business card for my future interviews. You may remember the first version of my business card made more than one and a half years ago (time flies!). It was basically made of two PCBs soldered together."

Robokitty Feeding Controller

Posted January 3, 2016 by Chris

"Is a DIY cat (or dog, or human) feeder controlled over the web (though not over the public Internet for now). There are two different feeding methods: instant feeding with the click of a button, or scheduled feedings (using a command scheduler like cron)."

Garage Door Keypad

Posted December 28, 2015 by Chris

"Remote garage door openers are great but there were times I need access to the garage and did not have the remote with me. I therefore designed a simple keypad with 4 digit access codes to allow myself, my family and friends to gain quick access to the garage when a remote is not at hand."

Arduino Radar Tutorial: Fading an LED With My Breath

Posted October 7, 2015 by Chris

"I built this Arduino radar project, where I control the brightness of an LED with my breath. In this tutorial, I will show you exactly how to do it. It was an experiment to get the XeThru radar to work with Arduino. I plan to expand on this later, and build more useful applications. And I will share with you how to connect the hardware, and how to create the Arduino code."

DIY – gForce 1.0

Posted September 23, 2015 by Chris

"Basically, the system uses an accelerometer to measure g-force and a SD card to store the data. An Arduino UNO is used to process the data coming from the accelerometer and save it on to a SD card. The system was originally developed for setup tuning and performance optimization in RC cars."

OpenDrop – Digital Microfludics Plattform

Posted September 15, 2015 by Chris

"OpenDrop is a new design for an open source digital microfludics platform for research purposes. The device uses recent electro-wetting technology to control small droplets of liquids. Potential applications are lab on a chip devices for automating processes of digital biology."