micros give out sufficient current to drive a led (pics up to 100 ma, dunno exactly about AVR, the arduino case)
Well, even AVR gives sufficient current to drive LED's.
Also seems some jump place to make other configurations (true or NOT logic) i suppose.
These are used to place other components. The interesting thing about *this* particular board is that the same board can be used for multiple sensors : Tilt sensor, Magnet detector, LED board, Push button, IR sensor, ..... and many more. Hence the different jump places.
i suppose the main use is for connection standard to other arduino's boards and setting for true or false command.
This is the very reason I am interested in. The board (custom developed) I have also has three pins (Sig, Vcc and Gnd) which makes plug and play easy.
Can someone justify three pins or give a schematic of these two boards please? if the issue is to just drive LED from a microcontroller, then I know how to. The issue is how have they designed the board to use three pins instead of just two. (without a transistor)
OR WAS JUST A JOKE
It truly isn't