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[請問] 煙霧偵測器輸出有辦法改成不是聲音的嗎
May 22nd 2014, 11:25, by niqq 

不好意思，小妹第一次提問。
因為家裡工作需要偵測煙霧持續的時間。
但是小妹只能想到
１、利用熱空氣上升原理，去推動微型小風力發電，然後接到計時器去計時。[但是後來發現煙霧太小了推不動風扇，而作罷]

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