Date of Last Revision
2023-05-03 05:21:56
Major
Electrical Engineering
Degree Name
Bachelor of Science
Date of Expected Graduation
Winter 2018
Abstract
Since water is an important resource and not all communities around the world can afford to be liberal with their water needs; it has become important to use available water as efficiently as possible, especially in agriculture. For the purpose of reducing the overwatering of crops, an unattended ground moisture sensor can be implemented to measure the moisture level in the soil surrounding the plants. This will allow a farmer to know when to water or stop watering crops. For convenience, the moisture data information should be transmitted wirelessly to the user. The design of an unattended ground moisture sensor and wireless communication/user interface system is discussed. The sensor design consists of a Wheatstone bridge for determining the resistance of the soil, followed by a differential amplifier for converting the measured resistance into a voltage. This is done because there exists a correlation between moisture and resistance. This voltage is interpreted by a micro controller as moisture data and sent wirelessly to a Lora receiver. The receiver then relays that information to the user via a mobile or web based app.
Research Sponsor
Dr. Kye-Shin Lee
First Reader
Dr. Ryan Toonen
Second Reader
Mr. Gregory Lewis
Recommended Citation
Miller, Jaclyn; Bitecofer, Derek; and Lee, Seung Jun, "Soil Moisture Sensor" (2018). Williams Honors College, Honors Research Projects. 776.
https://ideaexchange.uakron.edu/honors_research_projects/776