Relative humidity LED display and large humidity called circuit

Published:2011/4/18 2:00:00 Author:Nicole | Keyword: relative humidity, LED display | From:SeekIC

The circuit is as shown. It consists of humidity sensor, LED point display circuit, language sounder circuit, audio power amplifier circuit and so on. It is used in greenhouse, special raising, seedling and other cultivation occasion, it has the function of LED display intuitively, and it will call when it goes beyond the preset humidity.



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