I’m a newbie programmer and I’ve been trying to communicate with an
Arduino using the ruby-serialport library. If I run this:
require ‘rubygems’
require ‘serialport’
sp = SerialPort.new “COM3”, 9600
sp.write “H”
puts sp.read # hopefully “OK” 
I get this error (as a windows pop-up box):
‘The application has failed to start because msvcrt-ruby18.dll was not
found. Re-installing the application may fix the problem.’
and this ruby error in my command line window:
D:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-serialport/lib/serialport.rb:1:in
require': 126: The specified module could not be found. - D:/Ruby19/lib/ruby/1.9.1/i386-mingw32/serialport.so (LoadError) from D:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-serialport/lib/serialport.rb:1:in<top (required)>’
from ser.rb:2:in require' from ser.rb:2:in’
As far as I can see, the serialport library was supposed to work with
1.8. There doesn’t seem to be a 1.9 version on the GitHub repository
either.
I’m pretty stuck and don’t want to learn Python just so I can write
programs for my Arduino (I need to use an email library as well so I can
light an LED each time I get a new email - ie. I can’t use
‘Processing’).
Any suggestions much appreciated.
On Feb 4, 3:40 am, Tim N. [email protected] wrote:
D:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-serialport/lib/serialport.rb:1:in
<top (required)>' from ser.rb:2:in require’
from ser.rb:2:in `’
As far as I can see, the serialport library was supposed to work with
1.8. There doesn’t seem to be a 1.9 version on the GitHub repository
either.
You’ve installed a Binary gem for 1.8 when you’ve tried to use Ruby
1.9
Please install a gem binary gem that is compatible with Ruby 1.9 or
force the compilation process indicating the “ruby” platform:
gem install ruby-serialport --platform=ruby
I can’t comment on the state of the gem itself, but if you used
RubyInstaller and the Development Kit, building other gems could be
straight forward as *nix OS.
http://wiki.github.com/oneclick/rubyinstaller/development-kit
Luis L. wrote:
On Feb 4, 3:40�am, Tim N. [email protected] wrote:
D:/Ruby19/lib/ruby/gems/1.9.1/gems/ruby-serialport/lib/serialport.rb:1:in
<top (required)>' � � � � from ser.rb:2:in require’
� � � � from ser.rb:2:in `’
As far as I can see, the serialport library was supposed to work with
1.8. There doesn’t seem to be a 1.9 version on the GitHub repository
either.
You’ve installed a Binary gem for 1.8 when you’ve tried to use Ruby
1.9
Please install a gem binary gem that is compatible with Ruby 1.9 or
force the compilation process indicating the “ruby” platform:
gem install ruby-serialport --platform=ruby
I can’t comment on the state of the gem itself, but if you used
RubyInstaller and the Development Kit, building other gems could be
straight forward as *nix OS.
http://rubyinstaller.org/
http://wiki.github.com/oneclick/rubyinstaller/development-kit
Hi Louis,
Does ruby-serial works well with ruby1.8 ?
Thanks,
ashik
There is a 1.9 version of this gem on github, I’m not sure why searching
didn’t find it.
Also, I believe this was released to gemcutter as serialport:
gem install serialport
HTH
/Shawn A.
Shawn A. wrote:
There is a 1.9 version of this gem on github, I’m not sure why searching
didn’t find it.
GitHub - shawn42/ruby-serialport: Ruby Serialport packed neatly into a gem.
Also, I believe this was released to gemcutter as serialport:
gem install serialport
HTH
/Shawn A.
Thanks but I still seem to get the same errors. First it gives me this
error:
D:\Ruby19\lib\ruby\gems\1.9.1\gems\ruby-serialport\test>ruby miniterm.rb
miniterm.rb:1:in require': no such file to load -- ../serialport.so (LoadError) from miniterm.rb:1:in ’
So I find ‘serialport.so’ from here
http://rubyforge.org/frs/?group_id=61&release_id=30322. The file called
‘serialport_win32.zip’. I put the ‘serialport.so’ file in the
D:\Ruby19\lib\ruby\gems\1.9.1\gems\ruby-serialport folder and then I get
this windows pop-up error again:
‘The application has failed to start because msvcrt-ruby18.dll was not
found. Re-installing the application may fix the problem.’
I don’t quite understand where I am going wrong. Is there some kind of
updated ‘serialport.so’ that I need?
Thanks for the help.
D:\Ruby19\lib\ruby\gems\1.9.1\gems\ruby-serialport\test>ruby miniterm.rb
miniterm.rb:1:in require': no such file to load -- ../serialport.so (LoadError) from miniterm.rb:1:in ’
I think this might mean there is “some other” dependency that it is
missing.
from
http://wiki.github.com/oneclick/rubyinstaller/gem-list
it appears that the “serialport” gem should build and work with 1.9.1
mingw + devkit
E:\dev\ruby\ruby-prof\test>gem install serialport
Building native extensions. This could take a while…
Successfully installed serialport-1.0.1
1 gem installed
E:\dev\ruby\ruby-prof\test>irb
require ‘serialport’
=> true
‘The application has failed to start because msvcrt-ruby18.dll was not
found. Re-installing the application may fix the problem.’
That ruby18.dll is a hint–you’re using ruby19 and it’s searching for
ruby18.dll, so there’s probably a problem there.
You could also try using an older version of Ruby for windows, which
probably would work with that .so file (“legacy one click installer” on
http://rubyinstaller.org/download.html)
Also Python isn’t that hard to learn–we don’t hate it here 
GL!
-r
After much effort I have finally got it to work!
For those who are interested I used this library and it works perfectly
with 1.9.1:
Thank you all!
Roger P. wrote:
D:\Ruby19\lib\ruby\gems\1.9.1\gems\ruby-serialport\test>ruby miniterm.rb
miniterm.rb:1:in require': no such file to load -- ../serialport.so (LoadError) from miniterm.rb:1:in ’
I think this might mean there is “some other” dependency that it is
missing.
from
http://wiki.github.com/oneclick/rubyinstaller/gem-list
it appears that the “serialport” gem should build and work with 1.9.1
mingw + devkit
E:\dev\ruby\ruby-prof\test>gem install serialport
Building native extensions. This could take a while…
Successfully installed serialport-1.0.1
1 gem installed
E:\dev\ruby\ruby-prof\test>irb
require ‘serialport’
=> true
‘The application has failed to start because msvcrt-ruby18.dll was not
found. Re-installing the application may fix the problem.’
That ruby18.dll is a hint–you’re using ruby19 and it’s searching for
ruby18.dll, so there’s probably a problem there.
You could also try using an older version of Ruby for windows, which
probably would work with that .so file (“legacy one click installer” on
http://rubyinstaller.org/download.html)
Also Python isn’t that hard to learn–we don’t hate it here
GL!
-r
Hi Gordon and All ,
Thank you very much rubyinstaller.org groups . We achieved not only in
linux, windows too . As per the instructions from rubyinstaller.org , I
installed ruby1.8 and devkit .
Then Finally I download win32serial then I followed the instructions in
Readme from win32serial.zip . Then run the modem.rb sample file . Now
the modem is responding correctly .
However after rubyinstaller and devkit, I can shine in windows as same
as linux .Soon I am going to write documentations for this .
Greets a lot,
ashik
