Thread: Digital Sidecar problem
View Single Post
  #3   Spotlight this post!  
Unread 27-02-2009, 06:46
Russ Beavis Russ Beavis is offline
Registered User
no team
  
Join Date: Nov 2005
Location: Manchester, NH - DEKA R&D Corp.
Posts: 341
Russ Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond repute
Re: Digital Sidecar problem
If you've got your switch wired between 5V and GND instead of SIG and GND, whenever the switch closes, the 5V supply is directly shorted out and will essentially disable your Digital Sidecar. The 5V supply has short circuit protection for this very reason.

Switches need to be wired between SIG and GND (the two pins on the outer rows of the Digital I/O header). There is an internal (to the DSC) 10kOhm pull-up that will set the digital input to logic 1 when the switch is open.

Russ