St George Girls High School
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Transcript of St George Girls High School
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St George Girls High School
December 2013
Soil Moisture Probe
PMcL
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Engineers…
• Help people
• Solve problems
• Make things
• Improve society
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A Problem…
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How can we help?
Reduce our consumption: only water plants & lawns when they need it
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How do we know whenplants need watering?
Measure the moisture in the soil!
How?Measure its resistance to electricity.
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What do we need?
• A way to measure the resistance of soil
• A computer
• A visual display / alarm
• An audible alarm
• Power
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The solution – a soil moisture probe!
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What you will be doing…
• Surface mount
• Through-hole
• Programming
• Troubleshooting
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Safety…
• Lab rules are for safety
• Lab rules are enforced
• Work individually but in groups of two or three (buddy system)
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What else do electrical engineers do?
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Power Systems
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Renewable Energy
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Electronics
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Embedded Systems
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Robotics
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Plus a lot more…
• Biomedical
• Telecommunications
• Mechatronics
• Networking
• Software
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Let’s have some fun!