A Twitter account shows useless leds: Why there is a LED there?

3 点作者 fka超过 6 年前

1 comment

skibz超过 6 年前

I guess it's up for debate whether some of these are truly "useless".<p>Surely, these LEDs are there to indicate that an electric current is reaching its circuit?

评论 #17917197 未加载