Hi everyone! One one of the useful things, especially if you have many boards that you regularly experiment with is to have some cheat sheets, ideally attached or close to your regular board. The reason is that in many cases one forgets the driving voltages an so on and might make toast out of an expensive board. I have these two texts on stickers behind the plastic boards I have made to hold my Arduinos:Arduino DiecimillaThe power source is selected by the jumper between the USB and power plugs. To power the board from the USB port (goodfor controlling low power devices like LEDs), place the jumper on the two pins closest to the USB plug. To power the boardfrom an external power supply (6-12V), place the jumper on the...

This is a page I found extremely useful for calculating my resistors in LED circuits. You choose the number of LED's and the availiable source voltage and the program helps design the circuit for you. The nice thing about this page is that it also draws a sketch of the circuit* to build as a byproduct of the calculation:(* be sure to click "wiring diagram")http://led.linear1.org/led.wizTo use the Wizard it might help to have the following data in lieu of the actual specifications of your LED's:here's a table to help you make decent guesses:For forward current you can use 20mA in most cases.Color Voltage (Volts)IR 1.5red 2.0orange2.0yellow2.1green2.2true green3.3blue 3.3white 3.3UV 3.3blue (430 nm)4.6View the Original a...

I just started this week with the Arduino, and it seems to be going well.I've done the basics (hooking up various LEDs, getting RGB LEDs to work properly, driving a small motor, built the Adafruit Proto-Shield) and think I'm ready to start on some more advanced projects.I ordered two LCD's (one 2x16 and one 4x20) so those should come soon. Additionally, I supplemented my Arduino with a Seeeduino from Makershed. My project for the LCD's is going to be to the following:1. Create a device which can be mounted on the window next to my office door (so that persons approaching from the hallway can see what my status is prior to entering), which will:a. Run on the Arduino platformb. Display up to four lines of text (my status...

At http://www.desk-nijverdal.nl >> Arduino >> Hello World, an easy to build POV system is presented.Hardware description and software can be downloaded as a pdf file.2010 Reproduction of this file or parts thereof in any way, without permission of the author, is encouraged.View the Original arti...

Codeable Objects is a library for Processing that allows anyone to design and construct an artifact using geometric computation and digital fabrication. This tutorial will show you how to use the library to make a laser cut lamp. The library allows...

You can quickly create circuits on paper using copper tape, clear tape, and some simple electronics. The image above is from a workshop Jie taught at the Exploratorium museum.Components (available from Digi-Key):Other tools & materials:small...

Codeable Objects is a library for Processing that allows anyone to design and construct an artifact using geometric computation and digital fabrication. This tutorial will show you how to use the library to make a laser cut paper lamp. The paper...