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Groups > comp.arch.embedded > #21571
| Message-ID | <55B7FB08.5090703@electrooptical.net> (permalink) |
|---|---|
| Date | 2015-07-28 17:58 -0400 |
| From | Phil Hobbs <hobbs@electrooptical.net> |
| Newsgroups | sci.electronics.design, comp.arch.embedded |
| Subject | Re: waveform display in browser |
| References | <q2b2rah6msviaqt4su4r6t3tgml9u8b5lg@4ax.com> <r9kdrah9subdvjls24753k5tc191aomn5o@4ax.com> |
Cross-posted to 2 groups.
On 7/27/2015 8:52 PM, John Larkin wrote: > On Thu, 23 Jul 2015 11:18:09 -0700, John Larkin > <jlarkin@highlandtechnology.com> wrote: > >> >> >> I'm designing a tachometer box and it will have a web page interface >> as one way to talk to it. I thought it would be cool to include an ADC >> so we could display waveforms, too. My software guys here are mostly >> embedded types so we don't know a lot about Javascript and such. I did >> a little searching and mostly found things for displaying audio >> envelope cartoons; I want a real oscilloscope-looking thing, so users >> can see what happens as they change gains and filtering and trigger >> level settings. Dual trace would be nice, the analog waveform and >> corresponding comparator outputs. >> >> Has anybody done this? We'd consider getting outside help, either >> advice or actual coding. >> >> I assume our box will, through some port, deliver HTML, Javascript, >> and maybe some zipped JS libraries to the browser. And the company >> logo of course. The browser will send us text strings to parse if the >> user wants to change parameters or such. We would also deliver blocks >> of waveform data on request. That's my PHB perspective on things; I'm >> just the hardware designer. > > One of my guys threw this together pretty fast: > > https://dl.dropboxusercontent.com/u/53724080/Software/svgtest.html > > It uses javascript to generate a sine wave and pushes SVG into the > browser to plot it. Seems fine under Firefox. It's only 250 points and > looks pretty good. > > It doesn't look hard to have my tachometer box digitize waveforms > (AD7276 maybe) and display in the browser, without loading any apps or > anything. Nice. I'll have to toss that into my EM simulator at some point. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
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waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 11:18 -0700
Re: waveform display in browser Joerg <news@analogconsultants.com> - 2015-07-23 11:53 -0700
Re: waveform display in browser Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2015-07-23 16:34 -0400
Re: waveform display in browser rickman <gnuarm@gmail.com> - 2015-07-23 16:49 -0400
Re: waveform display in browser Dimiter_Popoff <dp@tgi-sci.com> - 2015-07-24 00:13 +0300
Re: waveform display in browser rickman <gnuarm@gmail.com> - 2015-07-23 17:39 -0400
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 14:50 -0700
Re: waveform display in browser Dimiter_Popoff <dp@tgi-sci.com> - 2015-07-24 01:19 +0300
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 15:30 -0700
Re: waveform display in browser rickman <gnuarm@gmail.com> - 2015-07-23 18:46 -0400
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-23 17:54 -0500
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 16:22 -0700
Re: waveform display in browser Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2015-07-23 19:56 -0400
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-24 14:55 -0500
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-24 14:11 -0700
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-24 17:00 -0500
Re: waveform display in browser Herbert Kleebauer <klee@unibwm.de> - 2015-07-25 09:04 +0200
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-24 14:58 -0500
Re: waveform display in browser Grant Edwards <invalid@invalid.invalid> - 2015-07-24 20:15 +0000
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-24 16:48 -0500
Re: waveform display in browser Grant Edwards <invalid@invalid.invalid> - 2015-07-24 22:08 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-24 22:46 +1000
Re: waveform display in browser Grant Edwards <invalid@invalid.invalid> - 2015-07-25 14:32 +0000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-24 22:44 +0000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-24 23:31 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-24 22:49 +1000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-25 09:28 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-25 08:43 +1000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-25 22:27 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-25 20:57 +1000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-24 22:41 +0000
Re: waveform display in browser rickman <gnuarm@gmail.com> - 2015-07-24 22:03 -0400
Re: waveform display in browser Tim Wescott <seemywebsite@myfooter.really> - 2015-07-24 15:05 -0500
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-23 21:37 +0000
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 15:32 -0700
Re: waveform display in browser Martin Riddle <martin_ridd@verizon.net> - 2015-07-23 20:24 -0400
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-23 21:08 -0700
Re: waveform display in browser Martin Riddle <martin_ridd@verizon.net> - 2015-07-24 07:52 -0400
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-24 14:08 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-24 22:53 +1000
Re: waveform display in browser Jasen Betts <jasen@xnet.co.nz> - 2015-07-25 09:46 +0000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-25 08:46 +1000
Re: waveform display in browser Clifford Heath <no.spam@please.net> - 2015-07-24 00:37 +1000
Re: waveform display in browser Martin Brown <|||newspam|||@nezumi.demon.co.uk> - 2015-07-24 11:46 +0100
Re: waveform display in browser YD <ydtechHAT@techie.com> - 2015-07-24 14:25 -0300
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-24 10:55 -0700
Re: waveform display in browser rickman <gnuarm@gmail.com> - 2015-07-24 14:09 -0400
Re: waveform display in browser Grant Edwards <invalid@invalid.invalid> - 2015-07-24 18:42 +0000
Re: waveform display in browser YD <ydtechHAT@techie.com> - 2015-07-24 19:12 -0300
Re: waveform display in browser Grant Edwards <invalid@invalid.invalid> - 2015-07-25 14:36 +0000
Re: waveform display in browser Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2015-07-24 14:55 -0400
Re: waveform display in browser John Larkin <jlarkin@highlandtechnology.com> - 2015-07-27 17:52 -0700
Re: waveform display in browser Phil Hobbs <hobbs@electrooptical.net> - 2015-07-28 17:58 -0400
Re: waveform display in browser "jurem" <51422@EmbeddedRelated> - 2015-07-28 09:49 -0500
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