Water Level Indicator (2)

Published:2011/5/17 20:38:00 Author:Sue | Keyword: Water Level, Indicator | From:SeekIC

When there is no water, VL1-VL4 are not illuminated. When water level reaches 1/4, IC’s 13 pin will have a high level, which will make S1 connected. VL1 is illuminated. As water level becomes higher, VL2-VL4 will be illuminated one by one. When the water case is full, IC’s 12 pin will have a high level, which will make VM illuminated. S will be connected and forces HA to make a warning sound.



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