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St George Girls High School December 2013 Soil Moisture Probe PMcL

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St George Girls High School. Soil Moisture Probe. December 2013. PMcL. Engineers…. Help people Solve problems Make things Improve society. A Problem…. How can we help?. Reduce our consumption: only water plants & lawns when they need it. How do we know when plants need watering?. - PowerPoint PPT Presentation

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Page 1: St George Girls High School

St George Girls High School

December 2013

Soil Moisture Probe

PMcL

Page 2: St George Girls High School

Engineers…

• Help people

• Solve problems

• Make things

• Improve society

Page 3: St George Girls High School

A Problem…

Page 4: St George Girls High School

How can we help?

Reduce our consumption: only water plants & lawns when they need it

Page 5: St George Girls High School

How do we know whenplants need watering?

Measure the moisture in the soil!

How?Measure its resistance to electricity.

Page 6: St George Girls High School

What do we need?

• A way to measure the resistance of soil

• A computer

• A visual display / alarm

• An audible alarm

• Power

Page 7: St George Girls High School

The solution – a soil moisture probe!

Page 8: St George Girls High School

What you will be doing…

• Surface mount

• Through-hole

• Programming

• Troubleshooting

Page 9: St George Girls High School

Safety…

• Lab rules are for safety

• Lab rules are enforced

• Work individually but in groups of two or three (buddy system)

Page 10: St George Girls High School

What else do electrical engineers do?

Page 11: St George Girls High School

Power Systems

Page 12: St George Girls High School

Renewable Energy

Page 13: St George Girls High School

Electronics

Page 14: St George Girls High School

Embedded Systems

Page 15: St George Girls High School

Robotics

Page 16: St George Girls High School

Plus a lot more…

• Biomedical

• Telecommunications

• Mechatronics

• Networking

• Software

Page 17: St George Girls High School

Let’s have some fun!