digital designs

akis · 16th April 2012, 05:19 AM

Hello

Recently I helped my son with his electronics project for GCSE which was an electronics metronome.

He had a 555 producing a square wave to be used as a "clock" signal that drove the rest of the circuit. He then had 4029 counters and other CMOS 4000 chips to display the beat on a 7 seg display, flash LEDs etc

I was wondering is this still the world of digital circuits? Or do people nowadays use different chips?

benb · 16th April 2012, 05:56 AM

This looks more like it belongs in Instruments and Amps rather than "digital source" (as in playback of digitized audio).

Those chips are still available (though perhaps as 74HC4xxx part numbers instead of 4xxx numbers) and you can still make such circuits, but there's much more available, such as microcontrollers and DSP's which can do sample playback and create sounds "on the fly" with appropriate programming, which is not trivial.

16th April 2012, 05:19 AM	#1
akis diyAudio Member Join Date: Jul 2008	digital designs Hello Recently I helped my son with his electronics project for GCSE which was an electronics metronome. He had a 555 producing a square wave to be used as a "clock" signal that drove the rest of the circuit. He then had 4029 counters and other CMOS 4000 chips to display the beat on a 7 seg display, flash LEDs etc I was wondering is this still the world of digital circuits? Or do people nowadays use different chips?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Digital Designs A4	mike49504	Car Audio	13	7th August 2011 07:43 PM
Digital Designs Z2	mike49504	Car Audio	25	24th December 2010 05:51 PM
Digital Designs Z1	mike49504	Car Audio	21	23rd October 2010 03:46 PM
Digital Designs Z2	teen	Class D	4	6th October 2010 06:59 AM
Digital preamp designs?	Helix	Digital Source	11	13th September 2001 12:14 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

16th April 2012, 05:56 AM	#2
benb diyAudio Member Join Date: Apr 2010	This looks more like it belongs in Instruments and Amps rather than "digital source" (as in playback of digitized audio). Those chips are still available (though perhaps as 74HC4xxx part numbers instead of 4xxx numbers) and you can still make such circuits, but there's much more available, such as microcontrollers and DSP's which can do sample playback and create sounds "on the fly" with appropriate programming, which is not trivial.