9.1
測量家庭用電總消耗。
測量家庭用電總消耗。
如今,大多數當選儀表都有一個二極管,該二極管會隨著消費而逐步傳遞脈衝。二極管標記為“ 1000 Imp / kwh”。將手機的攝像頭放在二極管上並測量消耗。二極管可能以紅外線傳輸,因此它不會對人眼可見,但是手機上的相機會看到它。
有關Google+網站上的更多說明
https://plus.google.com/u/0/b/108719271699520743932/
February 24, 2026
February 24, 2026
February 24, 2026
February 24, 2026
February 24, 2026
February 24, 2026
February 24, 2026
February 24, 2026
February 23, 2026
February 23, 2026
February 23, 2026
February 23, 2026