Unclear external power instructions

Other Hardware Motors, Mechanics, Power and CNC
1

Hello everybody,
Can someone awnser this question:
What does "Make sure the jumper is removed from the motor shield"mean in these instructions?

"If you would like to have 2 seperate DC power supplies for the Arduino and motors. Plug in the supply for the Arduino into the DC jack, and connect the motor supply to the PWR_EXT block. Make sure the jumper is removed from the motor shield."
(what jumper... :0)

Here is the link for the motor shield: Arduino motor/stepper/servo control - How to use

Please help...
Thank you!

Moderator edit: Removed "### PLEASE READ ###" from thread subject. (Nick Gammon)

2

(This really should have been in the motors section, it has NOTHING to do with programming)

On the Motor Shield - Arduino motor/stepper/servo control page when you move the mouse over the picture a pop will say "DC adaptor or Ext. Power" when your mouse is pointing at the jumper. Remove the little plastic "bridge" it connects the two pins. Bridge in place - your using the Arduino supply jack. Bridge removed - you have to supply power to the motor shield on the blue block (another mouse-over pop up: "External power")

3

Thanks a lot! (next time, i will put it in the right category).

Oh, and how do you add multiple switch pins on the arduino (Ex: int switchPin = 9 2;) I want to have pins 9 and 2 as 2 different switch pins. How do i do this?
Thanks,
Frank-duino

4

how do you add multiple switch pins on the arduino

Use two different variables.

5

Good idea! :slight_smile: Thanks

6

Please don't put "### PLEASE READ ###" in your thread subject. We read all of the posted topics. Did you think we just skipped some?

  • Moderator