Memorial Day house display:

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Memorial Day house display:

All powered by FastLED and ESP8266s! (thanks especially to lib8tion::sin8!)

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I really like that “wave” effect on the flag! Very nice Stephen.

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Sweet, what was your setup? Looks like you are using sets of 144 3m strips.

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Thanks. The left side roof and the porch pillars are WS2812B 5050 leds with 60/m spacing. The porch roof is a less expensive type (30/m) where one WS2811 chip controls a set of 3 leds in a row. I find it’s actually not bad because of sufficient viewing distance. I got them all at 5m/strip and cut them to fit, used hot glue to waterproof solder connections. They have been up for ~3 years with no problems except the silicone has yellowed, but does not affect color when they run. The left side roof is split in the middle, and is powered there and at each end with 5V from 5-15A supplies (necessary to keep up voltage) with 18 gauge wire. One ESP8266 controls each strip (Wemos D1 Mini R2 and ESP01 modules on breadboards running @ 160MHz with FET type level shifters). There is ~12ft min. from the MCUs and power supplies (in the house) to the start of the strips. One thing I did recently was to broadcast a coordinated show to them with an ESP32 as server running FastLED via UDP transmission; I was surprised how easy this was to do. I was thinking to look into a RPi for this to do more, can it run FastLED? A few things about the flag, the leds behind the red stripes are actually lit red in person but look white on the recording. This year 3 random leds became flaky; replaced 1, the others recovered after squeezing. I try to be gentle, store the flag flat with nothing on it. The star leds are 5V standard white leds I cut from a strip and wired to get the right spacing and matrix connections for two MAX7219 chips (before I saw flexible-wired ws2812b strands!) controlled by a Pro Mini. The stripes wave pattern is a radial sine wave originating from the top left corner; my method for calculating it was grateful for the sin8 function, there was good improvement in speed when I used it :slight_smile: Sorry if TMI but as I have learned details are important!

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@Stephen_Kramer Great details! I am working on something similar so it helps to learn as much as possible.