Home › Magazines › 2007 › April › E-blocks Light Chaser Squared

E-blocks Light Chaser Squared

Let’s complicate things!

Published in issue 364, April 2007

Sure, the E-Blocks LED Chaser from the February 2007 issue is a bit elementary. This month we’re going to try and expand it to a larger number of LEDs, but the simple light chaser principle doesn’t really lend itself to this.
If we wanted to drive 64 LEDs directly, we’d need 64 separate output lines. Having decided to stick with our 18-pin PIC16F88, we’re going to organize the LEDs into a matrix of 8 rows and 8 columns.

Components

Free downloads

Resistors

R1–R8 = 22Ω

Semiconductors

D1–D64 = LED, diam. 3 or 5 mm

IC1 = 74HC138

Miscellaneous

J2B, J3B = 9-way sub-D plug, (male), PCB mount

J7B = 2-way terminal block, PCB mount

Click below to download a PDF copy of this article from Elektor magazine.

	Downloads
	PDF Article (U070440.pdf)
	Free download
	PCB layout (075032-PCB.pdf)
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	Order from Elektor
	PCB, bare
	075032-1
	Free downloads
	075032-11.zip Free download

Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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Home › Magazines › 2007 › April › E-blocks Light Chaser Squared

E-blocks Light Chaser Squared

Let’s complicate things!

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Home › Magazines › 2007 › April › E-blocks Light Chaser Squared

E-blocks Light Chaser Squared

Let’s complicate things!

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