Hi all,
I did electronics way back in school days and can't remember basics.
What I'm looking to do is build a circuit using a 555 timer (unless there is something better suited) and a proximity sensor (like a car parking sensor) which will trigger when an object is in the way but have a delay till it switches on. This will then output to a relay.
The idea is that the sensor won't activate relay till say 5 seconds has passed. The circuit will then keep the relay switched on till the proximity sensor no longer picks anything up.
I'm just trying to find some pointers and advice on how to build this circuit please. Or if there is any good books or information to brush up on my electronic skills.
Thankyou for any help in advance
Regards Neil
I did electronics way back in school days and can't remember basics.
What I'm looking to do is build a circuit using a 555 timer (unless there is something better suited) and a proximity sensor (like a car parking sensor) which will trigger when an object is in the way but have a delay till it switches on. This will then output to a relay.
The idea is that the sensor won't activate relay till say 5 seconds has passed. The circuit will then keep the relay switched on till the proximity sensor no longer picks anything up.
I'm just trying to find some pointers and advice on how to build this circuit please. Or if there is any good books or information to brush up on my electronic skills.
Thankyou for any help in advance
Regards Neil