Webtrain Decoupling

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Webtrain Decoupling

• Adam Kadolph
• EE451
• Bradley University
• Advisors Dr. Irwin, Dr. Schertz

Week 14 Monday 3/26
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Outline

• Last Week
• Current Week
• Calibration Program

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Last Week

• Fixed timing issue with program to send DCC
  signals based of the voltage reading from the
  photocell
• Enabled/Disabled A/D interrupt
• Allowed correct timing of the DCC signal
• Mounted remaining two photocells in the webtrain
  layout
• All four sensors are appropriate places
• Need for a calibration program for sensors

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Current Week

• Code Calibration Program
• Set voltage thresholds for specific sensor
• Integrate with Main program
• Begin Automatic Decoupling
• Use Calibration program
• Program in stages

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Timeline
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Calibration Progam

• Program will calibrate the voltage thresholds for
  each of the four sensors
• Make use of keypad to set sensor and state
• Another function to test sensors
• Voltage thresholds will be based upon ambient
  lighting conditions

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Calibration Program

• How will the program work?
• Hook up several train cars
• Set the sensor
• Roll car over sensor
• Press button that corresponds to the state
• Do this several times with different cars
• Program will decided max/min limits
• Add some offset to limits

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Calibration Program

• My use of the keypad for the program
• Numbers 1,2,3,4 for different sensors
• Letters A,B,C for threshold states
• Letter E for testing purposes
• Letter F to finalize sensor values

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Questions?

• The End