Today we finalized our circuit design for the Hall Effect sensor.  The sensor will output a voltage in the presence of a magnetic field, with the two logic inverters setting any non-zero voltage to logic HIGH (5V).

Also, Diego finished the logic circuit design, having chosen to use a NOR gate.  Fred researched how to utilize the numeric keypad with the Arduino Mega, and began to try to use it.  Alec(myself) worked on the sensor circuit shown above.  

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