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