![]() ![]() Since you can configure your switch to be either Normally Open or Normally Closed, configure it (S1) so it's normally open, and when you push it closed the 555 will generate a 30 second long pulse which will light the LED for that time, no mtter how long or short the time you keep S1 made. Thanks in advance! You'll be saving my sanity here, I've been at this all day. I think this has to be very common because it's almost like an intrusion alarm where if the window is opened an alarm sounds for a period of time so I'm not sure why I'm unable to get this to behave the way I want to. I'm not entirely sure what I'm missing here but I would greatly appreciate an education as well as reference circuit. LED Strip: 9-12v (preferably closer to 12v) I've attempted to hook up the following circuitsĪnd a few more this system won't let me link toīut they do not perform as expected and either only turn on/off the led strip by the switch without the timer or they run indefinitely. I've calculated that I'll be using 1Mohm resistor and 22uF capacitor to generate a 24.2 second pulse (which is close enough to 30 for me right now). When the two parts of the switch are separated from each other an LED strip turns on for 30 seconds and then turns off until the switch pieces are brought together again and then pulled apart again at which point it would then turn on for another 30 seconds.repeat indefinitely. ![]() switch (nteinc Magnetic Alarm Reed Switch) so I'm not too concerned with which way I use it. I'm working on a personal project and I am at my absolute whits end here. ![]()
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