Christmas Lights Taking Shape

Every year I have a plan to make some Christmas lights using Neopixel leds. This year I’ve actually got as far as buying he leds and a power supply unit. Today I spent a happy half hour wiring everything together and a less happy half hour finding out that if you put a series resistor in the data line to the leds (as you are advised to on the web) they don’t work reliably.

Today’s hard won lesson: it’s not always your software that’s at fault. Sometimes the hardware can go wrong too. Once I’ve got the lights working I’ll post a video on here and the code on GitHub. It’s turning out to be quite fun.