32 Channel LED Driver Board

The second board in my spring-time lineup is a 32-channel LED driver. Two 5940's daisy chained. This board works with the ZB1, NB1 and NB1A. The outputs go to two header connectors. The pinout is compatible with the keyed IDE cables used in a lot of PCs.

The demo at http://wiblocks.luciani.org/NB1/NB1A-LED-index.html is the Knight-Rider demo that comes with the 5940 library. I just changed NUM_TLCS to 2. The board will be priced at $20. I should have the schematic and datasheet later this week.

It is easy to get increased current out of each channel using parallel boards on a single ribbon cable.

(* jcl *)