Welcome, Guest
Username: Password: Remember me

TOPIC: Programables Switchs?

Programables Switchs? 7 years 5 months ago #223

Hello,
I have a question.
How the programables switchs works?
Having a look at the schematics, I wonder how the programmables switch works (specially the SW3). Because eathier th SW3 relies PMW2 with GND ... or eathier withh... Nothing?

Does he needs to be connevted to 3.3V.. so the Arduino can read eathier a 3.3V or eathier a 0V? Or that is just for analog inputs?

Thanks a lot

Esteban
The administrator has disabled public write access.

Programables Switchs? 7 years 5 months ago #224

  • Ray
  • Ray's Avatar
  • OFFLINE
  • Moderator
  • Posts: 702
  • Thank you received: 152
  • Karma: 44
Hi, there is some info here

Regarding the hardware design of the programmable one (SW3 which is connected to PWM2), the Arduino Due board has an internal pull-up resistor, so when the pull-up is enabled, it will be in "high" level by default and when you connect it to ground it goes to "low" level.

So the "nothing" you mentioned is the internal pull-up, to configure it check this topic.
Last Edit: 7 years 5 months ago by Ray.
The administrator has disabled public write access.
Time to create page: 0.102 seconds
Powered by Kunena Forum
Joomla SEF URLs by Artio