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Electronic Kit for plants lovers. Gardening Care. EE2031E Circuit & System Design Lab (Mini-Project Demo). Presented By Kyaw Soe Hein(A0103612Y) & Lew Jiahui ( A0105416R). Agenda. Overview Plants are sophisticated living things- caring them would need extra attention.
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Electronic Kit for plants lovers Gardening Care EE2031E Circuit & System Design Lab (Mini-Project Demo) Presented By Kyaw Soe Hein(A0103612Y) & Lew Jiahui(A0105416R)
Agenda Overview Plants are sophisticated living things- caring them would need extra attention. In gardening, daily watering process play the most important part. Under-watering- withering Over-watering- Droopy Effect Exposing sunlight would also have effect on photosynthesis process. Conceptual IDEA Objectives & Specifications Circuit Design Demonstration of Application
Conceptual IDEA Key Areas of Interest Optimum moisture Condition for plants Raining or Over-watering condition Sunlight Exposing Status
Objectives & Specifications Objectives Specification Moisture sensors- probe soils resistance (>1.5Mohm & <2.5Mohm) Rain Sensor- Copper Grid to detect presence of flooding or raining Light Status – LDR circuit to detect Bright, Cloudy and Dark Integrates together and develop logic circuit for alarm • Develop Detectors/Sensors for moisture & water • Develop light Sensor for sunlight status • Integrate Sensors for monitoring of watering process • Activate Alarm when out of specified condition
Objectives & Specifications Low moisture with Sunny light Inappropriate for plants (Alarm STATE) Low moisture with Cloudy/Dark light Moisture Sustainable (No Alarm STATE) High moisture with Sunny Light Optimal condition for plants (No Alarm STATE) High moisture with Cloudy/Dark light Good condition for plant (No Alarm STATE) (RAIN Detection or Over-watering) Key Indicator as a ceiling of the logic RAIN detection (ALARM ACTIVATE) No RAIN Detection (Check the moisture & Sunlight Status)
Circuit Design Moisture Sensor Metal Probes with BJT Rain Sensor PCB copper Grid with BJT Light Sensor Light Dependent Resistor with Op-amp Monitoring Conditions Logics Gates with Buzzer
Project Demonstration Low moisture with Sunny light Low moisture with Cloudy/Dark light (Low Resistance in Probes Reading) High moisture with Sunny Light High moisture Cloudy/Dark light (High Resistance in Probes Reading) Rain/No Rain (demonstrate lastly) (Short-circuit/Open-circuit) Rain Detector takes time to dry up