Don't worry, the coding is simple enough to understand even without ... With me so far? Here is a list of projects that you can do with an Arduino that are fun, relatively easy, and incredibly ...

The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind ...

If you want to add a keypad to your Arduino project, the options are pretty limited ... though they will be open in the future. The code is already available for download on his website.