Controlling the growth parameters in a greenhouse with Cobra SMARTsense Code

Principle

Experimental set-up to control automatic irrigation depending on soil moisture and the reduction of air humidity so that the test plant can transpire effectively, thereby supplying nutrients to the leaves and achieving optimum growth.

Benefits

• Determining the optimum amount of soil moisture and air humidity as a growth factor
• Programming the controller using the Scratch programming language
• Use of the standard Cobra SMARTsense sensors for teaching in schools and universities

Tasks

1. Determining the optimum soil moisture with the Cobra SMARTsense Soil Humidity Sensor as a function of the plant species in a plant trial.
2. Programming the control of the water pump and thus the irrigation with the Scratch programming language.

3. Programming the control of the fan to reduce humidity using the Scratch programming language.

Learning objectives

• Students learn how to set up a control system for an intelligent greenhouse with just a few components.