Water Level Indicator (4)

Published:2011/5/17 20:46:00 Author:Sue | Keyword: Water Level, Indicator | From:SeekIC

When water level reaches D, D1 will have a high level, and its output terminal has a low level, while D2’s output terminal has a high level. VL1 is green then. When the level is lower than D, D1’s input terminal will have a low level and D2’s output terminal will have a low level, making VL1 become red. Other circuits have the same working principle as this one. When there is no water or water level is lower than d, VL1-VL3 are red. When the level is the lowest, VL1 is green, VL2,VL3 are red. When the level reaches 1/2, VL1,VL2 are green, VL3 is red. When the level reaches B, VL1-VL3 are green.



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