Wow, there's an echo in here.Most push button switches are available as N.O. (normally open) and N.C. (normally closed) versions. Some also have BOTH avaiable...see if your switch has three terminals.
Gee, but the "open" and "close" terminology has been around since long before any of us were thought of.Doors open and close, not switches.
Switches turn on electricity or turn it off.
Do you open and close a light bulb?
I think you have a button that turns on the electricity when you press it then it turns off the electricity when you release it.
The drawing shows a SPST-NO with dual contacts
"Normally" means the state the switch or contact when it is not acted upon by user or via external force caused either mechanically or electrically. So a normally open contact will be like an open circuit and current cannot flow pass the contact."SPST-NO" as in Normally Open when button is pressed or depressed?
It would make sense if it were "open when pressed" since this is how it behaves in my case
The phrase in the Sparkfun's description of the button is incorrect. It should have read, "Single POLE, Single Throw" (not "Single PULL ...").This is the button in question: http://www.sparkfun.com/commerce/product_info.php?products_id=97
I'm not familiar with the term "Single Pull Single Throw" but the description said "momentary on switches"
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