Very well made boards. Easy to get started with thanks to the DFU bootloader. Delivery to Germany took less than two weeks.
I've been trying to get some (factory new) ATMEGA16U2's into a working state for weeks now... So in addition to a finished board, I also asked for some unassambled PCBs. Received them, soldered my (factory new) chips on there and it FINALLY WORKED! Now I at least know that my chips do indeed have the DFU bootloader preinstalled. Still no clue why the chips don't work on my own boards, but these finally gave me a point of reference!
Nice product, but both snowflakes will sometimes lock up, meaning all leds will blink on one of the five pedals and not blink the rest of the leds. Only way to clear up problem is to turn off, then back on. So can only leave on for two days, then back on for 2 days. I don’t know if it is because I have the snowflake ornaments on a tree with a lot of flashing/flicking led and flicking flame(neon) lights and that causes the computer to get confused. I think the leds are a little small, maybe one size bigger, but they are bright for their size. Also, I would like the blink rate to be adjustable, but that might cause a more complicated design meaning higher price. These were the right price, others I looked at were 5-$10 higher each.
Sorry to hear that. You may be able to resolve the issue by adjusting the potentiometer so that the ornament triggers in a brighter room. Check my website for information on how to do this.
The issue is most likely a race condition in the interrupts that handle timing If the above fix doesn't work and you have the means to flash new firmware, I have an older firmware version that uses less interrupts and may not have the issue described.
Let me know via email if Tindie doesn't allow replying to this message.
I received the product and was happy to see the USPS actually delivering something on time (one of my other packages took 12 days longer than normal). I finally got around to playing with the ornament and was disappointed to see it did not work. I tried a different battery, still nothing. It was when I took it down a passageway with me that it lit up. I realized it was operator error (me) in that I did not RTFW (Read The Full Website). Cameron even wrote on the receipt to do it and I, like many people in my position, said, "nope... I know how this works".
Long story short though, I really like the product and it makes me want to get into crafting PCB's.