
This is a small illuminated name sign made from plexi-glass. The sign is illuminated with an RGB LED-strip that is PWM-controlled via a PIC16F1824 micro controller. The brightness of the LEDs can be adjusted to achieve different color blends.

The Base
The base of the sign consists of a top and bottom piece that are CNC routed.





The Sign
The sign itself is made from 10 mm plexiglass that is also CNC routed.



The Electronics
I created the PCB layout in Kicad as I usually do.
Kicad has a nice 3D-view mode that renders the card and components and creates a nice visualisation of the final result.
Here is the PCB direct from the manufacturer dirtypcbs.com.
There is only a handful components on the card. The current to the LED-strip is sunked via a PWM controlled ULN2003 darlington array. I have 2 channels in parallel for each color. This gives a maximum possible current sink of 1A per color.
Putting it all together




The micro processor is programed using the PicKit 3 and ICP (in-circuit-programming).
And a little light test without the plexi installed.
Result
Here are some pictures of the final result. We are creating these as gifts to friends and family.


