Foster sustainability by use of soil moisture sensor to save water

The Project

In our future skills n sustainability classes, we learnt about the soil moisture sensor. Since it can indicate whether sufficient moisture is present in soil for given type of plant we can build an automatic watering system in the home as well as for field crops. This will help reduce water wastage and also provide ideal amount of water for best plant growth. Use of technology this way will promote sustainable cities and communities, which is SDG 11, through technological innovation representing SDG 9. Dry soil does not conduct electricity. This means it has 100% resistance to current flow. When water is added to soil, the soil starts conducting electricity. We learnt to connect the sensor probes to Arduino to receive an analog value that is displayed on a serial monitor. The analog value received ranges from 0 to 1023. This analog value is received in bits and is related to sensor voltage. The sensor shows high analog value in dry soil which indicates low moisture content, and low analog value in wet soil which indicates higher moisture content in soil. Plants have different water requirement and we can set the limit value accordingly. We learnt to code to set different limit values. This sensor is used in smart gardens, drip irrigation, and for research related to agricultural practices.

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Team Comments

To foster sustainable practices and to save our mother planet.

yh working on sustainabilty is also challenging an require innovation. so this project can make save water in multiple ways. thinking about such was challenges.

yes i would like to do and want to make commercial project.