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 There will always be a point in your FIRST experience when you realize you can get away with something that is against the rules. It is at that point when you have a choice to make about your own personal ethics, and what sort of example you will set for your students. - ToddF [more] |
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#1
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Re: Conifirming somthing
The black wire is generally called "ground".
There is no explicit negative current. A piezo may be suited for this kind of application. But I'm not an electrical person, do your own digging. 
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#2
06-09-2006, 01:06
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Re: Conifirming somthing
It's true that the black wire is often called ground. It's a frequent mistake. Technically ground is into the earth. Most mobile robots don't have an electrical connection to the earth.
Anyhow there are lots of terms for it. Common and signal return are both accurate. People will usually understand ground and get the right idea, but the term is not really accurate for this application. Andy
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#3
06-09-2006, 08:33
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Re: Conifirming somthing
Ok lots of help (not sarcastic) thanks a whole lot will post a pic of my setup with the buzzer when it is finished.
im a noob to vex but am an electrical genious so this is great! Whoa whight is DATA!!  never would have guessed that!but again thanks a whole ton guyes. 
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