Dear Matt & Adam-
I met you guys at the 2013 Maker Faire (Bay Area) but finally got to build the Blinky Grid SMT kit I bought there. It was my second time using a solder paste dispenser and hot plate and it worked great - built flawlessly in just 20 minutes or so. I’ve only had limited luck programming messages from your website.
My screen is on a 2012 15" MacBook Pro w/ Retina Display. I’ve successfully programmed in new messages, but only about every third or fourth attempt succeeds. During the others I inevitably get a checksum error somewhere in the process, although I try to hold the photo transistors as close to the screen as possible and as still as possible. (I’ve tried with them from touching the screen to about an inch away.) I’ve also only been successful with a delay of 50ms. Any faster and I definitely get errors.
My question though is that the Easter Egg doesn’t seem to work. I have my second message set to end with an Easter Egg (which I’ve read elsewhere is supposed to be a Larson scanner) but instead its as though I told it to End instead. That is, rather than going back to message one, the blinky grid just “shuts down” until I either press the button or cycle the power. While the second message is playing, the button does not do anything, whereas at other times it was automatically advancing to the next message. So I assume whatever instruction “play easter egg” is supposed to be on mine is instead not doing anything.
Any ideas? Thanks for the great product. It was a huge SMT confidence booster.