Gardening Care EE2031E Circuit & System Design Lab (Mini-Project Demo) Electronic Kit for plants lovers Presented By Kyaw Soe Hein(A0103612Y) & Lew Jiahui.

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Presentation transcript:

Gardening Care EE2031E Circuit & System Design Lab (Mini-Project Demo) Electronic Kit for plants lovers Presented By Kyaw Soe Hein(A Y) & Lew Jiahui (A R)

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 Monitoring & Sunlight Status Buzzer & LED Detector Circuit Mositure Sensor Rain Sensor Soil Moisture Status Under- Watering Over-Watering Optimum moisture Condition for plants Raining or Over-watering condition Sunlight Exposing Status

Objectives & Specifications Objectives 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 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

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