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MCM Electronics Daily Deal and Bulk Bargain

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."

Arduino + Bluetooth Keyless Entry System

Posted September 13, 2015 by Chris

"Ditch the key FOB and use your mobile phone as a passive key to access and authorize your car. There are many challenges with such a system but I believe this development is unavoidable. Whilst my prototype is certainly not the most elegant, it does proof a basic point, which is that dedicated physical car keys are a thing of the past."

plcLib – PLC Software for the Arduino

Posted September 8, 2015 by Chris

"Our plcLib software turns your Arduino into a simple Programmable Logic Controller (PLC), allowing you to develop ‘PLC-style’ control-oriented software applications."

Mind-Controlled Nerf Gun

Posted August 28, 2015 by Chris

"Hardware setup is pretty easy for this, it’s nothing compared to what you’ve just done for the Nerf gun. Grab your breadboard, plug in your Bluetooth module (assuming you’ve soldered some headers onto the six-pin interface), and connect some wires…"

Remote Control Roomba From A Website Using Arduino

Posted August 25, 2015 by Chris

"Who has not wanted to vacuum when being away from home? The technique I use is a hack to take apart the remote control of the robot and connect it to an Arduino UNO. To control the Arduino from PC via USB, I use Messenger and lets Eventghost manage all communication with Serial-plugin."

Apple Extended Keyboard II Mod

Posted August 16, 2015 by Chris

"The biggest stumbling block to the project was the computer’s interface. The Apple Extended Keyboard II is from the days of ADB, or Apple Desktop Bus. The internet revealed two possible solutions: An expensive and sometimes-hard-to-find adapter by Griffin, or a $16 microcontroller and some DIY elbow grease. Naturally, I chose the latter."