Hello guys, I don´t know if this is the best forum for my question: I want to have a sotware timer that does the following sequence on a pc:bell, two minutes,bell, one minute, and repeating from the start. I have seen some countdown timers but noway.Finally I have found a software that simulates a 555 with two leds http://electronicinside.com/tute/ast/ and I have found also the values for R1,R2 and C1(180k,180k,470uF) but wit two leds on the screen. ¿Does anyone know an easier software with a sound? Sorry a thanks in advance.

 

Greetings! And welcome to AAC!

Your post, originally posted here (http://forum.allaboutcircuits.com/showthread.php?t=74036 ), has been moved into its own thread, where it will draw more responses.

Please refrain from "hijacking" existing threads with tangent or off-topic questions. You can create new threads for new questions using the "New Thread" button on the upper left of the page.

 

I'd suggest using a sound editing program (plenty of freeware ones), to create a mp3 of the whole cycle, you can then just repeat play it.