[eugenebrooks]

New for this year, the driver station does not have pullup resistors
on its digital inputs, you have to include them. We use two digital
inputs for each two way switch, each pulled up to 5 volts with a
10k ohm resistor, and then when the switch is thrown the
corresponding input line gets pulled down to ground.

As noted in an earlier post, you can play games with resistor
dividers on an analog input and get many switch
settings on one input line. Digital inputs are a scarce
resource on the driver station.

Eugene