I'm an artist working on a interactive installation. I'm a beginner in electronics and I'm feeling a little bit lost here, can you help me?
I have a 5v circuit with a PIR sensor activating a LED and a sound module. The minimum output from the PIR sensor is HIGH for about 3 seconds and then LOW for another 3 seconds. I need to flash the LED quickly, not stay on HIGH for 3 seconds.
The LED is just to demonstrate what I am trying to do. This is actually to trigger the sound module that I am using, which is triggered only by a short pulse. If it stays HIGH for 3 seconds it doesn't trigger it (just changes the volume). Basically, I'm trying to use the PIR sensor as a momentary button.
I know I could use an Arduino for this, but I need very cheap pieces for this project (cheaper than Arduino) as I will have many copies of the same circuit. What do I need for this? A timer or switch module, capacitors?
I really appreciate any help from the community!! Thanks!