LED chaos panel build. 54 independently flickering LEDs.

This is an update on a design I did decades ago where I made a PCB that fitted in a picture frame and allowed a matrix of LEDs to be installed for artistic or test reasons.
I thought it would be worth updating the design with surface mount resistors, partly as practice for soldering them. I also wanted to test a reflow plate and see if it was possible to use traditional solder to "ball" pads before placing the SMD resistors and reflowing them.

This PCB has many uses. I may get a batch made.

To find the flickering LEDs on eBay try this search link:-
https://www.ebay.com/sch/i.html?_from...
Target price around $8 per 100.

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