In article ,
Steve writes:
geoff wrote:


A microcontroller just to give you a 2 minute delay - bit of an overkill
isn't it ?

Cheap enough these days, and about 30 seconds of programming effort. Why
ponce about with 555 timers (flaky at long delays) ?

Low power 555's handle minutes without problems, but this application
probably only really needs around 10 seconds, and it doesn't need to
be accurate.

--
Andrew Gabriel