so i conect the positive of the battery to one end of the reed switch and the other end to a led positive, negative of the led to a resistor and then to the battery negative...the reed switch closes and opens with a magnet as it SHOULD.
then i conect an arduino uno also, i put the magnet reed switch come ON,i remove the magnet and reed switch still ON it will not shut down the arduino...
do you know what might be wrong?
thi is the reed switchhttps://www.sparkfun.com/products/10601
it works with just the load of the led conected but with a bigger load it just stays on until i hit it with my finger lol