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Plant Doctor Week 8

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Tyler Dalpe Taha Touil Ryan Sukhai Rishabh Ramaswamy

Faculty: Aggelos Bletsas and Richard Howard

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Project Description

  • Precise measurements of temperature (0.001 0C)
  • Observe temperature under different stresses
    • (light, water, salt)
  • Transfer of data collection wirelessly

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This Week’s Progress

  • Backscatter communication
  • Finished debugging thermistors
  • Ran verification tests

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Backscatter

Hexadecimal Number (ex.022A)

Binary Number (ex. 0000 0010…)

Frequency Shift Keying

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Debugging Thermistors

  • Fixed reference ground
  • Resoldered broken thermistor
  • Added Schottky diode protection

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Verification Tests

Both on paper (control)

No Stress Water Removed Light Turned On

One on paper one leaf

x-axis: seconds

y-axis: ADC Counts

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Future Work

  • Run additional verification tests
    • Both pairs of thermistors on same leaf
  • Create backscatter receiver
  • Multi plant experiments

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Thank You