The Daily Duino

Another post on Pachube and how easy it is to get setup and going. This post will cover the basic steps on how to get some sensors online!  I will be using my project of two light sensors as an example.  The status of my light sensors are viewable at http://www.pachube.com/feeds/2145 Pachube + Arduino from [...]

Quick update before I zonk out…  Yesterday I setup an account for Pachube and spent all night getting familiar with how it works. Pachube describes itself as a service that enables you to connect, tag and share real time sensor data from objects, devices, buildings and environments around the world. The key aim is to [...]

There has been quite a flurry of development revolving around the official ethernet shield recently. Here are what I consider a few of the more important changes. Ethernet fixes – There are some connection issues with the ethernet library with regard to incomplete disconnects. Since the wiznet chip only supports 4 simultaneous connections, this manifests [...]

So, I like to lurk in the #arduino IRC chatroom on freenode.net.  While in there the other day I started talking with Graxe and he mentioned that he would be near my area and inquired if I was interested in the RepRap.  Needless to say, I didn’t hesitate on arranging a meet-up! So, Graxe was [...]

Finally sat down and figured out how to send some basic signals via serial from Processing to an Arduino.  For this example I was just looking for basic functionality, so I settled for a simple way to turn a LED on and off.  It’s also mostly sample code gathered from the Internet. The Processing code [...]

For several years, I have been a user of various smart-phones of different makes and models.  Once I used my first smart-phone, I was truly hooked by the “life style”. Soon, I was left with little desire to return to a “normal” phone that “just made calls”. I am always finding new applications that remind [...]

Recently I did a video attempting to describe and compare the differences in a digital PWM signal and an analog signal.  To supplement my recent video, I am sharing another video I recently found while traversing the tubes. This video is about using PWM with FPGA’s— it’s not directly related with micro-controllers and is a [...]

Signals come in two basic types – Analog and Digital. Analog signals are capable of being any value, where Digital signals are called “discrete”, meaning they capable of being in only one of two states! The terms for these two states of a Digital signal are varied but include; ON/OFF, TRUE/FALSE, 1/0, HIGH/LOW, etc. So [...]

I am not a car guy, but I enjoy my Scangauge and knowing my MPG every second of driving.  We have really changed how we drive and consume gas with this simple ability. So how do I do with with an Arduino?  I had no idea other than there is some way to get the [...]

Tags: obd

Today we are going to be playing with some 433 mhz radios from Parallax. Transmitter $30 Receiever $40 Datasheet Now this is only going to be one way communication, as these will either transmit or recieve but not both.  This pair is extremely easy to use, they say these will range over 500ft and will [...]

Tags: parallax, rf, Wireless