Dave_Wheeler Posted February 5, 2006 Report Share Posted February 5, 2006 Hi Does anyone have a design for a metronome. It needs to display BPM and have adjustable accent (1/1 - 1/8)Trying to avoid reinventing the wheel.TIADave Quote Link to comment Share on other sites More sharing options...
Attila Posted February 6, 2006 Report Share Posted February 6, 2006 A really simple metronome could be made with an NE555, but I'm afraid that you cannot adjust the accent or mount a BPM display. Anything can be made with this chip... Or use a really simple and common PIC. I don't have other ideas, but I bet there are lots of these circiuts. Quote Link to comment Share on other sites More sharing options...
audiocommander Posted February 8, 2006 Report Share Posted February 8, 2006 Sounds like you're searching for this one:http://www.ucapps.de/mios_download.html--> http://www.ucapps.de/mios/clockbox_v1_0.zip"Outputs MIDI clock and 24ppqn signal (see also this forum article: http://www.midibox.org/forum/index.php?topic=5691.0 )"Should be easy to hook a LCD and crunch some numbers:)Regards,Michael Quote Link to comment Share on other sites More sharing options...
Dave_Wheeler Posted February 8, 2006 Author Report Share Posted February 8, 2006 Thanks Guys,Found exactly what I was looking for in an old edition of EPE which also includes instrument tuning and runs on a pp3 battery. No display but worth loosing that for portability after all it is for my 13 year old daughter :)Cheers,Dave Quote Link to comment Share on other sites More sharing options...
Jidis Posted February 9, 2006 Report Share Posted February 9, 2006 Outputs MIDI clock and 24ppqn signalThorsten's is just for clock output though, no audible clicks, right? (said the lazy-assed man who wouldn't go re-read the docs)Dave,Craig Anderton had a really simple version of one of those 555 circuits in his Electronic Projects for Musicians book. I built that one once. It could easily drive a small speaker up to a fairly obnoxious level on it's own, and it put off a nice smooth "tuck" sound for the clicks, with the enclosure and speaker I used. Mine was using a 9v battery.I want to see some diagrams for making common blip & beep noises with standard piezo elements or scavenged PCB-mount piezo packages, if anyone knows of any.BTW- In the way back of my head, I sort of remember seeing a PIC-based metronome project out there somewhere.Take Care!George Quote Link to comment Share on other sites More sharing options...
airmailed Posted February 10, 2006 Report Share Posted February 10, 2006 hi Dave,I've got a schematic in a book.. my scanners playing up right now... but it uses a 555 and a 4017 counter, 555 for the sound, 4017 mainly for driving some led's to show time visually....the accent is done by hooking up a piezo to the first output of the 4017 so that the first beat of the bar is accented...more 4017 tips here... http://members.shaw.ca/roma/thirty-four.html Quote Link to comment Share on other sites More sharing options...
Jidis Posted February 11, 2006 Report Share Posted February 11, 2006 alright man, got me stuck on there. >:(...I was supposed to be doing something else. ;DI like that cap meter. May get the junk for it on a Digikey order I'm building.My piezo thing is more just for general "beeps" and alerts. (not so much a metronome as Dave's) Quote Link to comment Share on other sites More sharing options...
Davo Posted February 11, 2006 Report Share Posted February 11, 2006 hi Dave,I've got a schematic in a book.. my scanners playing up right now... but it uses a 555 and a 4017 counter, 555 for the sound, 4017 mainly for driving some led's to show time visually....the accent is done by hooking up a piezo to the first output of the 4017 so that the first beat of the bar is accented...more 4017 tips here... http://members.shaw.ca/roma/thirty-four.htmlMmmm... It looks like a 4017s, 555s, and some seven-segment drivers can provide a metronome as originally specified. Quote Link to comment Share on other sites More sharing options...
Jidis Posted February 12, 2006 Report Share Posted February 12, 2006 Just went DIY MIDI fishing on the web and accidentally ran across another:http://www.maxmidi.com/diy/metro/index.html It uses a PIC16C54, but could maybe even be ported to something easier to get or smaller. It spots incoming MIDI clock, and flashes a bi-color LED (one color for the accents). It's not as elaborate as what Dave wanted, but it looked sort of interesting, and may be usable to someone as a separate "add-on" to a MIDIBox.-also pulls it's power from the MIDI line ::)There's a hex and source on that site, but the code looked funky or old to me.-George Quote Link to comment Share on other sites More sharing options...
Attila Posted February 18, 2006 Report Share Posted February 18, 2006 Have a look @ this: http://www.redcircuits.com/Page8.htm Quote Link to comment Share on other sites More sharing options...
Jidis Posted February 18, 2006 Report Share Posted February 18, 2006 http://www.redcircuits.com/Page8.htmGreat place. :DI need a small amp soon, and I've got some 5532's here.Thanks!George Quote Link to comment Share on other sites More sharing options...
Dave_Wheeler Posted February 19, 2006 Author Report Share Posted February 19, 2006 Great Site Attila,There is also a more complex unit on the same site.I have built the EPE tuning control and metronome (PIC Based :))Dave Quote Link to comment Share on other sites More sharing options...
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