Story In the future there is a bar where all the dead punk rockers hang out. They are each given a MiFare classic card programmed with their name and 666 credits. This is the device the bartender uses to keep track of their tab. This project uses an atmega168 to control a pn532 breakout board to write cards as well as read them. Once the data is read it gets sent to the Particle core over USART and then sen ...

Background A few years ago, a co-worker turned me on to this TV program called "The IT Crowd". The show revolves around a two-person IT team and their "Relationship Manager", Jen, who inadvertently landed the job by including some basic PC skills on her resume. Moss and Roy resent her for getting the position both wanted, and will occasionally try to help expose Jen as a hopeless non-technical leader that h ...

I have been collecting data from Raleigh's trails and parks for the last couple years.  My primary platform has been a custom Arduino board I developed for low-cost (hey, these things may get damaged or stolen) and long battery life.  I wanted a connected sensor to provide current data and, after looking at various technologies, I have settled on cellular as the most convenient. This sensor uses an off-the ...

In a previous article we showed you how to control digital pins over over serial, and showed how such a simple thing can be so powerful. One major downfall with that is you need to be nearby to send commands… So today we are going to look at doing the same thing, but this time we will be doing it over the internet using the Arduino Ethernet Shield. As per our usual style, I am going to make this as simple a ...

Yesterday we covered how you would go about controlling pins of your arduino over the internet using the Arduino Ethernet Shield set up as a server. Today we are going to take a look at using the shield as a client to get information off of a web page, and report back. I used this method a few months ago when I made the Nixie Twitter follower counter dubbed Twixie. The ethernet shield can be used to access ...

This article will detail how to make a simple bluetooth application using Android Studio and demo it using an Arduino to toggle an LED and send data back-and-forth. No prior knowledge of Android development is needed, however it will help to know some basics of Java programming. I will be using an Android phone for testing purposes and not an Android virtual device. The Android app that you develop can be u ...

If life has been too serious for you lately, this weekend project will take some of the stress out of your life and create a really neat toy in the process; a delight for a child or for those children who gather around your desk at work! Remember those Magic 8 Balls from the '50's and '60's? These are still available today. Essentially a dark liquid in a plastic ball with a clear plastic viewing port on the ...

You've bought your first Arduino or you're planning to get this great little device? Obi Wan would say: "That's good. You have taken your first step into a larger world." Same thing for me! Congratulations! You'll see, as soon as you master the basics, you'll have so much fun with this little device. There are so many tutorials and books outside, so why another? Maybe you think learning should be funny or a ...

This walk-through will show you how to build a sensor to monitor your plant's environment and use Stats in Sound's ERC-20 app to turn this data into music, allowing you to listen to your plant's reaction to it's environment.  For more information on this project, please visit www.statsinsound.org.uk. Below is a sample of music generated by the ERC-20 app, monitoring a happy healthy chilli plant. You will ne ...

Simple Remote Data Plotting using Android / Arduino / pfodApp This Instructable shows you how to plot Arduino sensor data on your Android mobile and capture it for later downloading to your computer.  These instructions are also avaliable at www.pfod.com.au No Android programming is required and very little the Arduino programming is needed. It is an extension of Simple Mobile Data Logging using pfodApp Ste ...

This is how to push high resolution real-time data from Arduino-based temperature sensor to your web page without any server-side coding. Arduino is a great device for collecting, storing and transferring data from various sensors but there are times you need to make your data accessible from any place over the internet, like I did for room temperature in my study. That’s when this solution may come handy. ...

This example shows you how to make repeated HTTP requests using an Ethernet shield. This example uses DNS, by assigning the Ethernet client with a MAC address, IP address, and DNS address. It connects to http://www.arduino.cc/latest.txt. The conent of the page is viewable through your Arduino's serial window. Circuit The Ethernet shield allows you to connect a WizNet Ethernet controller to the Arduino via t ...