Net Work

 Progress Update

  • Implemented the graph program and interface in Java. Settled on connectivity to use.
  • Connected Arduino to switches and LED's to test interface. Pass-through from one pin to another works.
    switch pass through
  • Implemented graph program in the Arduino micontroller. Everything worked on testing. A convenient property of the graph and state change function exists that makes testing easier. This property is that any combination of switch state changes can be repeated (not necessarily in the same order) in order to return the graph to the state it was in before the first switch state change. That is, a series of individual switch state changes, viewed as a function of the graph, is its own inverse.
    arduino graph test
  • Acquired relay card. It turned out to arrive in pieces :-(
    relay parts
  • Built relay card
    built relay
  • Attempted to control relay card from the Arduino. Have not yet succeeded, due to a voltage difference between the arduino output and the relay coils. Still debugging this. Have posted to velleman forum (manufacturer of these relays)
    arduino and the relays
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