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【進捗】M5stackでNeoPixelを使う最速手順

More than 1 year has passed since last update.

M5stackでNeoPixelで進捗を出す最速手順と、
ハマったポイントを紹介します。

手順1. Neopixelライブラリーの使用

先人の知恵をお借りして、AdafruitのNeopixel Libraryを使用します。
(先人リンク)
https://qiita.com/tomorrow56/items/fcf5ea7bfd2056e8f88f

...と、
基本的にはコレで終了なのですが、これでネオピクが光らず、
2日ほど進捗が出ませんでした。

M5stack実は電源2種類あるよ問題

実はM5stackには電源用のピンが2種類あります。
・5V
・3.3V

IMG_1228.png

ネオピク側に記載してあるのは5Vなのでなんの疑いもなく「5V」ピンから電源をとろうとしてましたが、M5stackでネオピクを制御する場合は「3V3」ピンから電源を取る必要があるようです。

37621900_1517370461702552_564396953673138176_n.jpg

進捗は以上です。

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