8x8 LED Array Multiplexed Infinity Mirror

Step 4 Place all the LEDs

Its now time to place all the LEDs into the acrylic from behind.

An 8x8 LED grid is controlled with Multiplexing which basically is to have all the LEDs cathodes(negative) all be bent over to the next one above it, so that a column of 8 LEDs will all have their cathodes in parallel, and be bent in way that the anode can be bent to the side and connect with the next LED in its row. So by sinking(allow path to ground) a column and sourcing(apply voltage) a row, a single LED can be controlled. Check the Internet for more detailed explanations.

This Instructable has good matrix directions.

- Check the images below and bend some LEDs, as shown

- You have to start from one side and work your way over like in the images. Or its hard to get at the solder points.

- As you work check to make sure the LEDs are bent suitably so they don't touch anywhere.

Normally diffused LEDs are preferred in Infinity Mirrors, but if using clear lens ones like I am, because thats what I had on hand, before removing the protective film on the acrylic I sprayed my LEDs with a Frosted Glass spray paint to diffuse the light.