This is for my son's 6th grade science fair project:
He wants to have a remotely activated On/Off switch. That is to say, when motion is detected, a lightbulb needs to turn ON -- and STAY ON indefinitely. We don't want the motion detector to send an OFF signal after a predetermined amount of time. Then when the Same motion detector detects motion again, the lightbulb needs to turn OFF.
We need a motion detector (or some sort of sensor that is activated by an interupted beam rather than by physical contact), that can alternately trigger this On/Off sequence, just like closing and opening a circuit by physically turning a lightswitch on and off -- a remote on/off switch.
Doesn't seem like it should be too difficult. Everyone turns their T.V. on and off remotely, we just need the circuit to alternately open and close each time motion is detected rather than by the physical push of a button or flick of a switch.
Anyone know how we can set this up?
Thanks!
Kent
He wants to have a remotely activated On/Off switch. That is to say, when motion is detected, a lightbulb needs to turn ON -- and STAY ON indefinitely. We don't want the motion detector to send an OFF signal after a predetermined amount of time. Then when the Same motion detector detects motion again, the lightbulb needs to turn OFF.
We need a motion detector (or some sort of sensor that is activated by an interupted beam rather than by physical contact), that can alternately trigger this On/Off sequence, just like closing and opening a circuit by physically turning a lightswitch on and off -- a remote on/off switch.
Doesn't seem like it should be too difficult. Everyone turns their T.V. on and off remotely, we just need the circuit to alternately open and close each time motion is detected rather than by the physical push of a button or flick of a switch.
Anyone know how we can set this up?
Thanks!
Kent