The strangest thing.

[[email protected]]

Hi,
have just been playing with a microcontroller (PIC24FJ64GA006) and
was working on getting external interrupts going, I have a small bread
board and the chip is on a small PCB with wires comming out to connect
to bread board, well I noticed that the wire connected to INT1 pin
trigers an interrupt if my hand gets near to the wire, like 1 cm away,
you can set of the interrupt with out even touching the wire, any
ideas what is going on here, its very strange.

Thanks

 

[JeffM]

[...]microcontroller[...]if my hand gets near to the wire[...]
can set [off] the interrupt with out even touching the wire,

http://www.google.com/search?q=cach...up_resistor+Pull-up.resistors+501+pull.down.*