High guys im a n00b at this, but i've been practicing a lot , i need some assistance on a project , when i use my keyless entry on my car it doesnt emit any sound or visual alert so i dont know if its open or not . i want to use the light from the security led to trigger my 555 so it can emit 3 beeps in one second to let me know that i've locked my car (that would be 3 hz?) 3 cycles per second right?...well anyway trigger it from the led , 3 beeps thats it . But can the 555 handle a very loud beeper im talking in hearing it a couple of feet away , i think in the 90 db range . but also the trigger could be the momentary 12 v pulse from the door locks , i would preffer the door locks , but since the pulse its very fast , could tha capacitor have a chance of chargin and powering the beeper ? IF anyone can help me with the schematics would really appreciate, THanks , sorry for the long post ...