The Daily Duino

Television! Teacher, mother, secret lover. –Homer J. Simpson Having only discovered the duino recently, I’m constantly searching for applications that push the limits of what can be done with the device. There have been several sketches posted that will output composite black and white video to your TV with a very simple circuit, but the [...]

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 wanted to see the range of my new distance sensor, so I hooked it up to some led’s. /*Distance Ranging to LED Bar*/ //this can be done better in a loop #define led1 2 #define led2 3 #define led3 4 #define led4 5 #define led5 6 #define led6 7 #define led7 8 #define led8 [...]

Tags: distance

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

Morgellon had a cool idea to build a clone of one of these games.  ie press a button of the right color when you are told to do so, to keep the music playing. So we are both working on 2 totally different ways to build such a device and randomly i stumbled across this [...]

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

I have seen these on the internet, so I sat down to make my own.  I really wanted the ability to put a programmed ATMega168 on a perfboard and make it do things in small projects without having to use a RBBB Freeduino ($12). I used the documentation from the RBBB Freeduino located here (pdf). [...]

Tags: barebones, breadboard, perfboard, rbbb

Coming off my breadboard and barebones duino, I decided to just build my own.  Wow I suck at wire management. Mine has a few fancy features (other than lots of wire).  For example I have some headers for plugging up an LCD and some for a FTDI cable. I also have some headers for additional [...]

Tags: barebones, droopsduino

To do a wired serial conection you need 3 wires, rx, tx, ground.  Don’t forget the ground, that had me all confused and frustrated.  The tx (transmit) and rx (recieve) wires need to be crossed. I wrote a simple sketch that starts at 0, outputs that value, increments by 1, outputs that value and so [...]

Tags: Communication, LCD, serial, sparkfun