Agricultural Automatic Water Feeder （16）

Published:2011/5/25 5:55:00 Author:Sue | Keyword: Agricultural, Automatic, Water Feeder | From:SeekIC

When the level is lower than B, D4 outputs low level, RS will reverse. D3 outputs high level. V and K are connected. M begins to feed water. When the level is higher than B, D4 outputs high level, M keeps feeding water. When the level reaches A, IC's 1 pin has low level, RS will reverse and D3 outputs low level. V is disconnected and K is released. M stops working. When the level is lower than A, IC's 1 pin will become high level. When the level is lower than B, the circuit works like above, keeping the level moving between A and B.



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