# Intermittent Beeping Device

#### JuzzyDee

Joined Nov 28, 2006
5
Howdy,

First things first, I'm totally new to the world of electronics. I've spent the last two weeks reading, and I'm swamped with a knowledge of electron theory ohms law and so on. However it is all just theory that I have learned, and I have a hard time putting it into practice.

I have set myself a rather easy first project that I wish to complete. I'm looking at hooking up a 9volt battery to a small device that will emit a 2 second beep every 30-60 seconds.

I was hoping that someone would be able to point me in the direction of some good reading for this project, or even direct me to some specific components to learn about.

Any assistance on this would be much appreciated.

Thanks
JuzzyDee

Joined Jan 10, 2006
614
It could be done with a 555 timer, or a variety of "4000" series CMOS chips in various configurations... amoungst a multitude of solutions. Every member of this board would probably recomend a different method, but I would probably use something like a cheap PICAXE8 microcontroller, or a 4060 (counter/divider/osc) for minimum component count.

#### JuzzyDee

Joined Nov 28, 2006
5
I've found a discovery series Multi Timer Kit.

I was wondering if having the output of this connected to a buzzer would do the trick once configured.

It's described as follows.

The circuit basically consists of a relay and a timer circuit which is programmed by connecting diodes in certain positions.

I think in the crawling stages of beginning (As they say, crawl before you can walk) this may be a good start.

This kit is $30AU, or I can get a 555 timer kit for$20AU. I dunno which is better, the 555 seems more difficult to configure for my needs.

Joined Jan 10, 2006
614
I assume its a Dick Smith, or Jaycar kit. Cat number..??
It obviously has a presetable "Off" delay.... is the "on" period configurable for 2 seconds..?
Most of those kitset delays use an oscillator feeding some CMOS counter chips with jumpers or diodes to select the delay period.

#### JuzzyDee

Joined Nov 28, 2006
5