[Alan Anderson]

A simple attempt to send a SmartDashboard boolean from the Dashboard to the robot didn't work for us. Rather than dig deeply into the code to see what might or might not work, I tried a simple hack that ended up working fine.

Make the boolean an indicator rather than a control. Right-click on it in the block diagram and choose Create >> Property Node >> Value (Signaling). Wire up whatever value you want to send to that property node. That'll let you change the indicator value.