Adventures in Arduino (Adventures In ...) by Stewart Becky

Author:Stewart, Becky [Stewart, Becky]
Language: eng
Format: azw3
ISBN: 9781118948460
Publisher: Wiley
Published: 2015-04-13T16:00:00+00:00

Want your sign to light up in a different pattern? It’s not too difficult to create your own. Write out the pattern as a sequence of eight 0s and 1s and then calculate what that number would be in decimal. You can also use an online calculator to help convert between binary and decimal; try www.mathsisfun.com/binary-decimal-hexadecimal-converter.html or www.binaryhexconverter.com/binary-to-decimal-converter.

Making the Lights

Your first—and biggest—decision is to choose the letters you will create. Remember, you only have 24 LEDs to decorate your signs with. You need to decide what letters you would like to make and where the LEDs will be placed.

Trace your letters onto cardboard. Cardboard from old boxes works well. Use a pair of scissors or a utility knife to cut out the letters.

If you want to decorate your letters with paint or paper, go ahead and do that now.

When any paint or glue used to decorate your letters are dry, use a tool to poke a hole in the cardboard letters where you want to place each LED. A pencil or screwdriver can work well. Make sure the hole is just big enough to snugly hold the LED in place. At this point you’re just determining the placement of the LEDs. You insert the lights into the holes after you have the wires soldered. You should now have letters similar to the ones in Figure 4-15.

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