Ron, If I understand what you're saying, you want to use Go to build the backend but how do you build a touch enabled GUI on the front end. Is this correct?
If so couldn't you use a web page as the front end and use Go for the CGI on the backend to do all the work. If you are viewing the web page with a tablet you would get all the touch screen features as well. Raspberry Pi running Go code and Apache <-> network <-> client with web browser The RPi runs Apache and Nginx quite well. I even have an RPi set up as an Internet facing Mumble server. keith -- Keith R. Watson Georgia Institute of Technology IT Support Professional Lead College of Computing [email protected] 801 Atlantic Drive NW (404) 385-7401 Atlanta, GA 30332-0280 > -----Original Message----- > From: [email protected] [mailto:tech-chat- > [email protected]] On Behalf Of Ron Frazier (TECHC) > Sent: Friday, April 18, 2014 11:36 > To: Tech Chat List > Subject: [tech-chat] how do you merge raspberry pi + go language + android > device > > Hi all, > > I've been thinking about learning the Go programming language for years > and haven't acted on it. One thing that really dissuades me is that the > Go language doesn't really have any connection to the gui on the pc, at > least it didn't a year ago. I guess you can add in some graphics > libraries. Still, it's not a sophisticated and seamless integration > plus IDE like you'd get with something like the MS Visual C# system, for > example (as far as I know). Even if gui support is addable, limiting my > interactions to a pc screen and keyboard isn't too exciting. What if I > want to interface with the mouse, or a temperature sensor, or a gps > sensor, or a motor controller? > > Well, one thing that can interface nicely with those other things like > those I mentioned is a Raspberry Pi, or Beagle Bone, or Beagle Board, > etc. You can program many of these devices in Go, as well as almost any > other language supported by Linux. But, those devices don't have ANY > screen built in. Yes, you can attach to a composite video device or an > hdmi video device. But, if you're talking about something like a smart > thermostat, or smart weather monitor, or robotics controller, it would > be nice to have a small touch screen attached to it. > > So, then I think of using an android tablet or smart phone. But, you > cannot program those in Go, or probably not Python or Ruby either. It's > gotta be Java. I don't want to do Java. I like Go because it's > compiled and thus has really fast execution, relatively light weight > executables (I think), fast compile times, extensive multi-threading and > concurrency support (although that's not so relevant on a Beagle Bone), > and built in garbage collection. > > So, here's my thought. I want to get a Raspberry Pi or something > similar, which I can program in Go, and which I can attach sensors and > motor controllers and other things to. Then, I want to use an android > tablet or smart phone to be a remote display and touch screen interface > for the Pi operating over the lan, either by wifi or by lan cable. > Actually, since most tablets and smart phones don't have lan ports, it > would probably have to be wifi, or maybe bluetooth. > > So, does anyone know how to do something like this. I don't necessarily > have to program the Android device. Just load something on it to do the > remote access. > > Here are examples of the type of things you could build with a set of > devices like this. Having the touch screen be remote opens up some > interesting possibilities, although the Pi and the tablet could be in > the same enclosure. > > * Smart weather station. Mount the Pi outside in an enclosure with > whatever sensors it needs. Mount the touchscreen either outside or > inside, and have full access and control of the unit which has the > sensors. You could optionally add smarts to the touch screen / tablet > to merge local weather data with stuff from the web, etc. But, the > simplest thing is just to use the tablet as a i/o device for the Pi. > You could also add those smarts into the Pi if it has internet access, > merge the data, then send it to the touch screen. > > * This example will only make sense if you've seen the I Robot movie. > Detective Spooner walks up to Dr. Alfred Lannings's house after > Lanning's death. The detective holds his badge up to a smart device on > the door frame. The device scans the badge with a laser or something, > checks a database of authorized people, determines that Detective > Spooner is allowed, greets the detective with Dr. Lannings's voice, > displays "Welcome Detective Spooner" on a small screen, and unlocks the > front door. > > Etc. There are thousands of cool possibilities for a device with a non > trivial amount of computing power and memory, wifi and bluetooth, a NICE > built in touch screen, AND lots of general purpose I/O for access to > cameras, laser scanners, speakers, microphones, gps devices, motor > controllers, servos, position sensors, light sensors, even radio > antennas, etc. > > Any thoughts? > > Sincerely, > > Ron > > > -- > > (PS - If you email me and don't get a quick response, you might want to > call on the phone. I get about 300 emails per day from alternate energy > mailing lists and such. I don't always see new email messages very > quickly.) > > Ron Frazier > 770-205-9422 (O) Leave a message. > linuxdude AT techstarship.com > > _______________________________________________ > tech-chat mailing list > [email protected] > http://lists.linuxmoose.com/mailman/listinfo/tech-chat _______________________________________________ tech-chat mailing list [email protected] http://lists.linuxmoose.com/mailman/listinfo/tech-chat
