Sprout greenhouse constant temperature control and cricket sound alarm circuit

Published:2011/9/2 2:55:00 Author:Christina | Keyword: Sprout, greenhouse, constant temperature, control, cricket sound, alarm circuit | From:SeekIC

As the figure shows. It is composed of the temperature detection circuit, the relay control heating circuit, the cricket sound alarm circuit and the AC step-down rectifier circuit. It can control the temperature of the 10～16m2 greenhouse in the range of 28℃±0.5℃. When the temperature is lower than the set temperature, the circuit will connect to the electric heater automatically and send out the sound of cricket to alarm the host.



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