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by Ares
Sat May 16, 2015 3:25 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Yes, they look identical from the outside. Question is, do they use the same chip/firmware/driver? My experience with this kind of device is generally "no", but the only way to find out would probably be buying them and testing. If they work out of the box, good, if they work in windows only, I coul...
by Ares
Tue May 12, 2015 9:39 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

I got my rotary encoder and connected it, apparently the original pin codes were right after all. I forgot about the reassignment done by wiringPi. In Software, I ended up with pins 4, 5 for the encoder and 6 for the push button function ("wiringPi pin"), corresponding to 23, 24 and 25 in hardware (...
by Ares
Thu May 07, 2015 8:42 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Great to see this project coming along! Regarding the rotary encoder: It seems to be set to pins 4 and 5 in the code (in KeyboadInput.cpp L39, encoder = setupencoder(4, 5); ), you'll probably want to change that to 23, 24. So far I just implemented your code example and have not yet looked into the ...
by Ares
Tue May 05, 2015 5:57 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Yes, the TX-25 camera is UVC compliant according to the raspberry pi operating system, and worked right out of the box (at least I do not remember having to install any drivers): Bus 001 Device 006: ID 0603:8612 Novatek Microelectronics Corp. uvcvideo: Found UVC 1.00 device USB PC Camera (0603:8612)...
by Ares
Mon May 04, 2015 9:17 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

I have tested with some USB webcams, the performance drop seems to be noticable, but still reasonable, i.e. much less than 1 sec betweeen sounds. There is still a lot of room for improvement software-side. Apparently the linux camera driver does not give the most recent camera image, but seems to ca...
by Ares
Sat May 02, 2015 9:58 am
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Nice progress! I prepared an implementation of the rotary encoder code (as well as some of the other features I promised), it ended up in the file KeyboardInput.cpp which is responsible for some kind of menu structure as you suggested. Right now the menu has no visuals, but should work with asdw key...
by Ares
Mon Apr 27, 2015 9:49 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Hallo all, Great to hear it is working for you! Integrating the GPIOs should be no big problem, I will have a look at this when time permits. Some features I added (not yet on git, need to make them a bit more stable): - daemon mode (independent of terminal), so the program can be run automatically ...
by Ares
Wed Apr 22, 2015 9:13 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Ah, forgot about the HDMI output, good idea. I tested again on the Rpi2 using aplay (linux audio palyer) and a "silent" wav file, using a usb power pack battery to avoid power supply noise. Apparently the 3.5mm jack is still quite noisy. I checked the output of the optimized image-to-soundscape-algo...
by Ares
Tue Apr 21, 2015 9:35 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Great, I am looking forward to seeing if this works for any of you. The code is released under the same unrestrictive license as the hifi-code it is based on, so no need to worry. I had a look at useful the features mentioned by Pranav. Speed control is possible by setting the total time of each fra...
by Ares
Mon Apr 20, 2015 8:04 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Thanks for the info! Quite a few things of what I have tried have worked out, so I uploaded my code to github to make it easier to share, you can get it from the raspberry pi command line this way: pi@raspberrypi ~ $ git clone https://github.com/Ar-es/raspivoice This should download all source files...
by Ares
Mon Apr 20, 2015 12:42 am
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Ok, I'll look into this. I have a RPI2 ordered already, so I should be able to test this soon. Right now I am wrapping up some major rewriting of the original code which allows for choosable cameras and image processing options (should be able to share this soon). A C++ API for the Raspberry Pi came...
by Ares
Sun Apr 19, 2015 8:21 pm
Forum: Assistive technology and accessibility
Topic: Sight for the Blind for <100$
Replies: 720
Views: 199000

Re: Sight for the Blind for <100$

Hi Mikey11 and others, I've been looking into getting the code from http://www.seeingwithsound.com/hificode_OpenCV.cpp working on a raspberry pi the past few days, then I stumbled upon this thread. I might be able to help, is the challenge still current? Did the Raspberry Pi 2 solve the performance ...

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