Hi
This is interesting idea. However, it support voting between 2 options,
only, while I need at least 4 options.
I thought that combination of analog DAQ and 4 push buttons with analog
output may help here.
Does someone have an idea about such combination (analog DAQ+edge unit)?
With best regards
Yosi Yarchi
On 04/06/2011 10:55 AM, Jason Friedman wrote:
I think the best solution would be to use a data
acquisition device, either USB or PCI.
Measurement computing sell relatively cheap devices, e.g. this
USB one for $99:
can measure 24 digital channels (you could get two if you need
30).
Each "competitor" could have a small switch, which connects
their input line to say a 5V power supply.
You can then write a very simple program to detect when each
competitor presses their switch
(with sub-millisecond accuracy!).
These devices apparently have linux support.
Jason
On Wed, Apr 6, 2011 at 2:44 PM, yosi yarchi <yosi.yar...@gmail.com>
wrote:
Hi
all
I need application that will be able to collect and process inputs from
30 (!) competitors, and will display the results very fast. The ideal
solution could be to collect the inputs via SMS: each competitor send
his answer, the application collect the answers (related to phone
number) and process them. However, I can't assume that the competitors
have mobile phones (they may be little childs...).
I thought to use 30 USB numerical keyboards as input devices, connected
with cables to 3 hubs, connected to the computer.
However, I don't have experience with USB drivers at linux...
Is it feasible? What should be the main guidelines for the solution?
With best regards
Yosi Yarchi
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Jason Friedman
Postdoctoral scholar
Macquarie Centre for Cognitive Science
Macquarie University, NSW 2109 Australia
email: write.to.ja...@gmail.com
web: http://curiousjason.com
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