A Voltage Divider is a simple circuit for dividing a higher voltage into a lower voltage without cumbersome transformers, etc. The example shows the proper values of two resistors (in ohms) for obtaining 12v from 120v. Using the formula and
This is the next step from our last post, where we take the single color example of PWM brightness control, and expand it to a RGB LED with a whole spectrum of color outputs. Instead of having one potentiometer, we
Pulse Width Modulation at last! In our last example, we read a potentiometer (pot) to get a analog value of 0-1023, and used that number to delay the digital on and off times of a LED. This example will do
I’m doing a series of mini projects that will build up to a motor controller, but need to get some basics across first. This first sketch is a Arduino, reading a potentiometer on an analog port, and using that data
There are some neat Ham Radio / Arduino videos posted at http://9w2pju.hamradio.my/2010/04/arduino-toy-for-ham-radio.html. There is a Call Sign Player, Beacon Controller, and other Morse Code examples. Enjoy! Become the Maker you were born to be. Try Arduino Academy for FREE!
Ponoko is one of our favorite websites. Need a 2d or 3d item made for you? Don’t have a machine shop? Design a gear, or case, or whatever, in Inkscape, Google Sketchup, etc., upload it to Ponoko, and they will