i have some basic problems with pd
i connect pd with arduino and a sensor. the sensor sends signals to pd and they trigger other reactions.
the problem is:
1. when a box is checked, it means it receives a signal. when unchecked, it regards that as another signals. then how to treat 2 signals as 1? it is "x" and "o". does pd automatically treat those signals as 0 and 1? if yes, then 0=checked/ x , or 1=checked/x ?

2. i tried to use simple digital firmata for arduino, but it does not show any signs of firmata on pd canvas. is that normal? or should i see the name of hte firmata on canvas? btw, i marked a small red canvas there as i have seen some ppl have their firmata shown on canvas. but not mine.