Xenobius Posted September 4, 2004 Report Share Posted September 4, 2004 Hello I was at the local electronics shop and I bought a PIR (like a transistor with 3 leads and a smal screen on it's head.I would like to build a sensor so that when my neighbours cat jumps inside the house from the window, I would know with the help of an led and a small beep.Could anyone help me please?thanks a lot Quote Link to comment Share on other sites More sharing options...
ante Posted September 4, 2004 Report Share Posted September 4, 2004 Here is an example. Quote Link to comment Share on other sites More sharing options...
Xenobius Posted September 6, 2004 Author Report Share Posted September 6, 2004 Thanks mate. Now I want to make an LED flash 5 times for 1 second or 2 when someone passes from inforont the PIR. How can I do that with a Low output (lowoutput from the schematic in the thread above) also Is it possible to make an optional piezo buzzer just in case I find the system not good in the morning and I need sound? I think this would be usefull to everyone knowing you can make an led, (maybe a relay) , and a piezo buzer with it. thanks Quote Link to comment Share on other sites More sharing options...
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