Could anyone help me?
I bought a PIR motion sensor from here: http://proto-pic.co.uk/pir-motion-sensor
I've wired it up as stated with a pull up resistor on the alarm pin
but when I test it I get some very random readings even though nothing is causing it to detect motion???
Bellow shows what 30 seconds looks like.
NOTE I've set a delay for 200 milli seconds in-between each reading
1 = HIGH = no motion
0 = LOW = Motion detected
Notice how many times it says it detects motion but in fact nothing was there?!!
I can't understand why this is
I've check my wires are in the right places, given it 10 seconds to prepare and everything but no matter what I do it still doesn't work as it should.
Can anyone help I'm totally stuck,
Many thanks in advance