Can I use Arduino to pulse a frequency counter as a clock?

Hi, I am a complete novice to the Arduino world, but I finally found a project I'd like to try out with it. I just have no idea where to begin.

I have an HP 5532A frequency counter I'd like to use as a clock, but rewiring it seems like overkill for a counter, not to mention a waste of working vintage electronics.

I finally found a site describing a technique where the guy created an external module that hooked up to the counter via BNC, and faked a clock by simply 'pulsing' the counter by set amounts to roll over the numbers like a clock. "...Every hour (when the time is, for instance, 11:59), send 41 pulses and the timer will count up to the next hour..."
You can see the example here: Nixie Tube Counter Clock

Can I do this with an Arduino, and if so, which one should I get? Any advice on how I can make use of the code he provides? Do I need anything special for the BNC connector, or can I just attach it right to the Arduino board?

Thanks for any input. I've been scouring the internet for ages trying to figure this out, and I realize, for my own safety, I could use some guidance.

I guess - depending on what resolution was selected.
At 1:05 it could generate 105Hz, at 1:06 106Hz,... 1017 Hz at 10:17 and so on.
So, in concept, seems odd, but should be workable.
You write the code. :smiley:

Does this "freq counter" have an event counter function? That would be easier, knocking out 204 pulses at 2:04, to say.

That's an interesting new direction. I'll look into that!

The link you posted seems to describe a device that counts pulses rather than one which displays frequency.

If all it does is count pulses it would be easy to provide pulses from an Arduino. If it displays frequency the technique suggested by @Runaway Pancake should work.

Bear in mind that the Arduino internal clock is not very accurate so your HP clock might not keep good time. You could, of course, connect a real time clock (RTC) module to your Arduino.