The Design And Development Of Temperature Controlled Oyster Mushroom Farmhouse Using PID Control Technique

Lee, De Rong (2017) The Design And Development Of Temperature Controlled Oyster Mushroom Farmhouse Using PID Control Technique. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Oyster mushroom is a type of plant that need a specific temperature range for it to grow continuously. Therefore, a technique of Proportional, Integral, Derivative (PID) controller is used that will compare the measured temperature with the reference temperature by a control feedback loop. As a methodology of this project, the manual tuning of the PID to get optimal response on the system. For equipment used, the DHT11 temperature sensor is used to sense and measure the surrounding temperature insides the farmhouse system. Then the AC PWM dimmer circuit that controlling the light intensity of the AC light bulb to control the surrounding temperature of the farmhouse system until stay at reference temperature. Besides, we are also used the DC fan to cool down the surrounding temperature to maintain at reference temperature if the surrounding temperature is too high. As an analysis in results, the best PID gains tunings are

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