Dear Will, Thanks for the suggestion. Now I know how to flash the image to the µSD card. It's just I don't know what to do with Debian. Do I need to install any package to let Debian to support Qt? Thanks.
在 2015年6月13日星期六 UTC-4上午10:51:33，William Pretty Security写道： > > If you Google “Beaglebone latest images” you will see that the OS of > choice (and best supported) is Debian. > > I suggest that you flash that image to your uSD card. > > > > *From:* [email protected] <javascript:> [mailto: > [email protected] <javascript:>] *On Behalf Of *Henry Yongfan Men > *Sent:* Saturday, June 13, 2015 9:01 AM > *To:* [email protected] <javascript:> > *Cc:* [email protected] <javascript:>; [email protected] <javascript:> > *Subject:* Re: [beagleboard] push button on 7-inch touch screen to send > some strings through the serial port. > > > > Dear Eric, > > > > Thanks for all the information! I will read all the articles and videos. > Now I have a small problem. I followed the video to map an image of > Angstrom on my SD card, and boot the BBB with this system. However, when I > try to connect the BBB to my mac through USB, the ip of the BBB won't be > assigned automatically (it shows "self assigned IP", 169.254.51.158). Also > I cannot ssh to it from Terminal. So I cannot get the control of the BBB > from my computer. Do you know how to solve it? > > > > Thanks! > > Henry > > > > > > 在 2015年6月12日星期五 UTC-4下午10:46:34，Eric写道： > > As a quick hack, the hard button(s) may be easier with less code, but you > are right, using the soft button approach with software based menus is much > more flexible. With the touchscreen attached, the beagle starts running > it's display on the touchscreen and enables the touch interface as if it > were a mouse. what you will likely want to do is when the system starts > have it start your button menu interface. that program will be the main > thing the user sees and by pushing certain buttons in the menu you create > each button causes a software action or conversely a software routine can > bring up a window or button. > > take a look at the following to get you started: > > https://en.wikipedia.org/wiki/PyQt > https://wiki.python.org/moin/PyQt > https://en.wikipedia.org/wiki/PySide > https://en.wikipedia.org/wiki/PyGTK > https://en.wikipedia.org/wiki/WxPython > https://en.wikipedia.org/wiki/Tkinter > > https://www.youtube.com/watch?v=53oeJPKRttY > https://www.youtube.com/watch?v=fqK8N48kPXs > https://www.youtube.com/watch?v=0vvb7Kv59qA > https://www.youtube.com/watch?v=8D_aEYiBU2c > > within python you ought to be able to use the python serial library and > one of the above libraries/toolkits to get your buttons working. i.e. push > software button, execute routine that spews string over serial, return to > menu. > > Eric > > > > On Fri, Jun 12, 2015 at 2:33 PM, Henry Yongfan Men <[email protected]> > wrote: > > Dear Eric, thanks for the reply! I’m planning to use soft button, not the > hard button. Because in the end, I will end up adding many soft buttons > with different names that can send different strings to the next device > through serial port. > > > > Now I have very rookie questions: > > 1) I have connect the BBB to the computer, and I have opened the webpage > of http://192.168.7.2, and can perform the scripts on the webpage text > box; I have also opened Cloud9 IDE (http://192.168.7.2:3000/) and > performed some programs. But I noticed that the Cloud9 access some path > that the USB disk cannot find. My question is, how to get to the beagle# > status > before entering any command to modify the configuration of the serial port? > From the terminal of the computer? Or Cloud9? Or webpage test box? > > 2) It seems that when I connect the BBB to the back of the touch screen > and turn it on, the board enters a system with touch control. So I suppose > that I should run some GUI (some soft buttons) program from that system, > instead of from computer via a USB cable. How to do that? > > > > Now I’m reading the book “Bad to the Bone: Crafting Electronic Systems > with BeagleBone and BeagleBone Black”. It’s a very good book, but the > progress seems to be too slow. I hope I could finish this by this weekend. > But based on my background, there seems to be some barrier I should conquer > first. So I really need some expert like you to instruct a little bit. Look > forward to your reply. Thanks again. > > > > Henry > > > 在 2015年6月12日星期五 UTC-4下午3:43:14，Eric写道： > > did you want to use soft buttons (buttons generated on the touchscreen as > needed in software) or hard buttons (buttons on the display that consist of > an actual hardware switch that causes a detectable contact closure) for > this? For the soft buttons I'd look at Qt. For the hard buttons, look at > how the beagle can edge detect an input and generate an interrupt based > upon that. I'd be happy to look a bit further once you have an idea which > direction you want to go. > > Eric > > > > On Fri, Jun 12, 2015 at 12:32 PM, Henry Yongfan Men <[email protected]> > wrote: > > > Dear all, > > > > I'm a complete newbie in this community. As a postdoc, I'm responsible of > building a off-computer control system. I decided to use BeagleBone as the > central controller. But since I have other academic jobs, I wish I could > finish the project quick and dirty. So maybe I need some specific guidance > on it. > > > > Now for the first version of the system, my idea is just have two buttons > appearing the touch screen and when I press either of the buttons, the BBB > will send out a string through the serial port. I have another device > waiting for the string command to trigger some control, so the rest is > already ready. > > > > I think this is rather easy, isn't it? But I spent about a whole day today > trying to figure out how to send the string out, and still cannot be > successful. Not to mention the touchscreen part. I have experience in > Matlab and LabVIEW programming, a little C experience, no Javascript or > Python, and now I have a BBB, a 7-inch touch screen, a USB cable, and a 5V > 3A power supply. I can make the serial port with connectors to the board > with no difficulty. I have tried to boot the board with the 5 power supply > and the LCD screen hooked up, and I could see the operating system. So > could anyone tell me how to step into this field with a relatively quicker > method? Thanks! > > > > Sincerely, > > Henry > > -- > 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. > > > > > > -- > 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] <javascript:>. > For more options, visit https://groups.google.com/d/optout. > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.5961 / Virus Database: 4355/9986 - Release Date: 06/10/15 > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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