Have a clear outputs button in the expression builder

This would be a button in the expression builder that would uncheck all currently checked boxes in the current expression and physically turn off all the outputs on the Hummingbird.

[chrisbartley]

+1

I've often wanted an "Emergency Stop" button for times when a motor/servo is wreaking havoc on my poorly-cobbled-together bot.

[jenncross]

FWIW The "new" button serves a similar role in that it unchecks all the checkboxes. It does not reset outputs though. I actually see some value in keeping those functions separate. Thoughts?

I would really like to see a way to "disengage" the servos as part of this button. Right now the servos on start up are in a mode that lets you manipulate them manually (or at least I recall a Hummingbird version that had that action). But once a command is send, that servo is forever locked under computer control (until unplugged).

Since there is no way to know where the the servo's neutral position is, there is no good way know if setting a servo to zero would help the situation or hurt. (In contrast, turning LEDs, vibration motors or motors off to zero are all things that I include in my usual "All Stop" expression)

I can see a few options here:
"Reset" button that zeros the non-servo outputs and disengages the servos
"Undo" button that just lets you quickly revert to the last state the robot was in
"Clear" that does both the "New" button feature of clearing check boxes and the "Reset" function above.
.... or some other option TBD

I would not want to add more than one extra button though, the interface was designed with minimal text and minimal buttons to set it apart (easier) from other novice languages that are more full featured like Scratch et al.