Cuckoo´s clock

[Dirk Van Develde]

Hi there,

I´m looking for a electronic drawing to make a clock.
It should give me a number of pulses on the hour.
2 at 2 O clock, 3 at 3 O clock ...........
You could compare it with a cuckoo´s clock.
I can handle the clock part but can´t seem te solve the counter bit.

many thanks in advance
Dirk

 

[Roy J. Tellason]

Hi there,

I´m looking for a electronic drawing to make a clock.
It should give me a number of pulses on the hour.
2 at 2 O clock, 3 at 3 O clock ...........
You could compare it with a cuckoo´s clock.
I can handle the clock part but can´t seem te solve the counter bit.

many thanks in advance
Dirk

How about storing the hour in a binary (or bcd?) counter. Use a separate
counter for the noise you want to generate, when it hits the hour. Use a
74LS85 (or more than one if needed) to compare them, make the noise,
increment the noise counter, and stop when they're equal...?

 

[Roy J. Tellason]

<posted & mailed>

How about storing the hour in a binary (or bcd?) counter. Use a separate
counter for the noise you want to generate, when it hits the hour. Use a
74LS85 (or more than one if needed) to compare them, make the noise,
increment the noise counter, and stop when they're equal...?

Or simpler yet, for the "make the noise" counter use a presettable counter,
load it with the hour, and count down each time you make the noise, stop
when you hit zero. No comparator needed...