https://stream.echo6.co/videos/watch/3c5d7e6d-ade4-48f9-b4be-56fc133bcc31 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=R40&_nkw=100pcs+5mm+flicker+led&_sacat=0&_sop=15 Target price around $8 per 100. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. Wed, 15 Apr 2026 09:47:37 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/3c5d7e6d-ade4-48f9-b4be-56fc133bcc31 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.