Hi Mark;
Thanks for the response. I looked at the links, and I think it would be easier if provided more detail. What I am trying to do is a lot less complex (I think) than your examples. As part of my latest book for Packt Publishing, I have an RF Power Meter design. Basically you read an analog voltage which is proportional to the RF power being measured. (It could just as easily be temperature) multiply by a correction factor to convert millivolts to dBm and then print out the result. I already have test software that does this to the console, but I want to now output it to a web page. The web page already controls a programmable attenuator, using socket.io and toggling IO bits. I don’t need to graph anything; just print a number on the web page that corresponds to the RF power. I found a couple of files in your git tree called “ioPlot.html” and “ioPlot.js” but I am not sure how to simplify them for my application. Thanks; Bill http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book From: [email protected] [mailto:[email protected]] On Behalf Of Mark A. Yoder Sent: Friday, June 06, 2014 4:51 PM To: [email protected] Subject: [beagleboard] Re: Reading an Analog input from a web page ? p.s. I also have a homework[1] assignment that gives an overview of it. --Mark [1] https://drive.google.com/#folders/0B5UNMAgIJB74cUhIRlRwcXdQaTQ On Friday, June 6, 2014 3:44:36 PM UTC-5, Mark A. Yoder wrote: William: I have an example[1] that not only reads analog in, but it also plots it on a web page. --Mark [1] https://github.com/MarkAYoder/BeagleBoard-exercises/tree/master/realtime On Thursday, June 5, 2014 11:09:58 AM UTC-5, William Pretty Security wrote: Hello group; I am wondering if is possible to read an analog input on the BBB at the press of a button on a web page. I already have code that uses node.js and socket.io to turn on an LED in response to a button push. But I want to Read an input and display the result. Does anyone know how to do this ?? Thanks J http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4592 / Virus Database: 3955/7631 - Release Date: 06/06/14 _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4592 / Virus Database: 3950/7548 - Release Date: 05/23/14 Internal Virus Database is out of date. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
