The String comparison operators, ==, !=,>, < ,>=, <= , and the functionsequals() and equalsIgoreCase() allow you to make alphabetic comparisons between Strings. They’re useful for sorting and alphabetizing, among other things. The operator == and the function equals() perform identically. It’s just a matter of which you prefer. So if (stringOne.equals(stringTwo)) { [Get Code] […]
Arduino String Comparison Operators Code Continue Reading
This is a project in attempting to improve it predecessor “Freeform Arduino” by putting it in an enclosure and having it serve the similar purposes as “Palm Arduino Kit” and “Palm Arduino II” which I can carry it in my pocket and be available to use, and to connect to easy available power source specifically
USB Freeform using an Arduino Continue Reading
Hi there. Christmas is coming closer, and I was wondering if I could put some candles in my room to get in the “christmas mood”. But after a friends house burned down of christmas tree candles, I don’t want to burn real candles into my room. So why don’t let the Arduino light for you?!
Flicker up to 6 LEDs with Arduino Continue Reading
4D Systems makes some really nice serial OLEDS. They aren’t hard to use, but the documentation for them is very scattered. This tutorial pulls together the various pieces i’ve found so that you can get up and running very quickly. Start by skimming through the user manual for your particular 4D OLED. µOLED-128-GMD µOLED-96-G1 µOLED-160-GMD1
Displaying Images on 4D OLEDS using Arduino Continue Reading
At the place I work, we use xymon to monitor of our servers. All of the services monitored are important, but we wanted a separate indicator to simply show the overall health of the most critical systems. Furthermore, we came up with the following criteria: We wanted this visible to everyone whether or not they
Arduino stoplight web server Continue Reading
This example shows you how to monitor the state of a switch by establishing serial communication between your Arduino and your computer over USB. Hardware Required Arduino Board A momentary switch, button, or toggle switch 10k ohm resistor breadboard hook-up wire Circuit image developed using Fritzing. For more circuit examples, see the Fritzing project page Connect three wires to
Digital Read Serial using Arduino Continue Reading
This sketch shows you how to read information from the Esplora’s joystick and use it to control the movement of the cursor on your computer. You’re making your Esplora into a mouse! This sketch will take over the mouse movement of your computer. If you lose control of your cursor do the following : unplug
Arduino Esplora Joystick Mouse Continue Reading
Who wants grinning faces and candles when you can have an interactive pumpkin this Halloween? Play your favorite block-stacking game on an 8×16 grid carved into the face of the gourd, lit by LEDs and using the stem as a controller. This is a moderately advanced project and requires experience soldering and programming in the
The Tetris Pumpkin using an Arduino Continue Reading
This is my first time using Arduino, or any microcontroller. I’m glad it worked out so well but my wife may not be, due to the stacks of microcontrollers that will being showing up on our doorstep soon for future projects. Any feedback or questions are welcome, as are votes in the Arduino Contest. Why (Problem)
Android & Arduino Controlled Projector Screen Continue Reading
In the spirit of Earth Day, I have created a revolutionary new energy-saving lighting solution that is only ever on when your eyes are open. This is remarkably more efficient than normal lighting that remains on, even when your eyes are shut. Using my device, you get light when you need it, and darkness when you
Energy-Saving Light using an Arduino Continue Reading
