[Beginner] Wearable board with animated lights and sound

Projects General Guidance
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Hi everyone! Im fairly new to electronics, ive done a bit here and there but I'm hoping to do my first somewhat advanced build and could use some advice.

So I've been building alphonse elrics armor, and the bracers have a ton of room in them. I'd really like to mount a small board in each of them and wrap some LED light strips around the inside. The hope was that I could wire a button in the palm that once pressed the lights would animated and it would play a sound, preferreably from the board.

Ive done some digging but most of what I've been finding has been one or the other. I know any speaker that's built into a board, especially a micro board, is probably going to suck, but that's fine, at this point I'm just looking to get started and iterate from there. I've done most of the work I have with Arduino Unos, which are just way too big

TL;DR: need a recommendation for a small wearable Arduino (or similar) that can do animated lights and sound, if something like that exists

Thanks a ton in advance!

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Either an Arduino NANO or for real small a SEEED Studio XIAO ESP32. After that just google. Quick tip look at the FastLed library for lots of samples, I am sure one of them will be what you want.

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If you want to keep it real simple get some LEDs that have built in blinker. There are also tr-color LEDs that change color by themselves.

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I have not heard of them. I googled but didn't see any of interest, do you have a link?

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Perhaps Lilypad?

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I used DuckDuckGo, searched for bi--color flashing LED, and found a lot of them. Aliexpress shows them readily available. Try this link: https://www.aliexpress.us/item/3256803158233479.html

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May I re-present; The Most Bedazzling Annoyatron.

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