one hour timer

Good day

does any one know of a simple hour clock?

I need a pulse ever hour. must run on 3volts

thanks
Smiles

 

The usual is a 4060:

http://www.kpsec.freeuk.com/components/cmos.htm#4060

Alternatively, you could use something like a SY-CR102, together with
the minute hand of a watch/clock...

 

only have 2 AA or AAA batteries and would like 12 month life

1 hour + or - 2min is ok out put will feed an up/down counter to give a
on state at the end of up to give an 8hour delay

 

So what is wrong with the two options I gave you? The chip, with an RC
clock, or the modified battery clock?

 

If you are suggesting interfacing to the "hours" seven-segment part of
the LCD display, that is relatively difficult. I did suggest using a
reflective optosensor together with a bit of reflective material on the
minute hand..

Know what you mean. KISS works for me, too..