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Topic: Need some help for a science project. (Read 10 times) previous topic - next topic

Falchion

This is all so confusing, but it has to get done...
Robots are cool.

PeterH


This is all so confusing, but it has to get done...


After seven pages I've lost track of what you have got working, and where you're stuck.

What's the current problem?
I only provide help via the forum - please do not contact me for private consultancy.

Falchion

It's cool. Here's where I am right now... I built the hand itself, but I need to get multiple servo's running at once, so I can tie the strings on the fingers into the holes in the servo motor and I'm having some trouble getting 1 to run on external power.
Robots are cool.

JimboZA


I'm having some trouble getting 1 to run on external power.


Here's my suggestion then:

1- Put DuaneB's multi servo sketch aside for now.
2- Reload sweep, which I think u said was working before?
3- Carefully check the wiring* of the one servo, your Fritzing pic showed you had the red and black confused. Keep the Arduino powered from the PC...
4- Run sweep to verify that the servo runs from external power.
5- Then and only then, edit sweep along the lines of my suggestion many posts back, to have a second servo ("myOtherServo" for instance) on another pin and run that new sketch to verify two servos

Then we'll talk some more...

* wiring is battery +ve to servo red, -ve to servo black and also Arduino ground, yellow / orange to Arduino pin to which servo is attached in sketch. Check the voltage is what the servo needs, probably 4.8 to 6, not the 9 you were using
Roy from ITCrowd: Have you tried turning it off an on again?
I'm on LinkedIn: http://www.linkedin.com/in/jimbrownza

JimboZA

Something along the lines of the Fritz attached
Roy from ITCrowd: Have you tried turning it off an on again?
I'm on LinkedIn: http://www.linkedin.com/in/jimbrownza

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