Hi all,
first of all a little introduction. I used to be an electronics hobbyist around 25 years ago but stopped due to a career in something other than electronics. Around 4 years ago I got back into electronics when I got a job repairing LED signboards. For the past year I've been out of work and made various projects most of which were experimental or making a cool animated clock for my home.
I have a large number of DM134B 16 bit shift register chips with built in constant current LED drivers that I've been trying to offload on eBay without success. So I decided to make them into a project.
I made this The DM134B 16 bit shift register with constant current LED drivers – Adrian’s electronics blog which is a demo board with solder pads for an Arduino Nano and breakout headers for the unused pins. I've wrote a simple demo program which counts from 0-999.9 seconds to try it out. I got the PCB's professionally made on black soldermask for a bit more visual appeal.
However I thought that these may make a useful thing for hobbyists to play around with or integrate into a larger project. For example this could be the display board for a digitally controlled power supply, a clock / timer etc. I can certainly make use of two of them for my own projects.
What do forum members think of me building 20x of these and selling on eBay / Tindie? Is this something that hobbyists would be interested in? I have three of them left but didn't want to make more if I can't use them or it's not worthwhile.
Thanks!
