1,658
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: + + + + + + + + + Line 4:
Line 13: − + − | [[Media:BITSI_tempalte2015_duemilanove.zip|Code Template 2015 (Duemilanove)]] Line 12:
Line 20: − + + + Line 45:
Line 55: − |- − | Soundkey || S / s || 83 / 115 − |- − | Voicekey || V / v || 86 / 118 Line 56:
Line 62: − + Line 113:
Line 119: + + Line 176:
Line 184: − + − + − [[file:output_buttonbox1.png | 800px]]+ − '''Testing Buttonbox'''+ − When pressing on the A button within the input channel tester. You will see the following output.+ − + Line 215:
Line 223: − + + + Line 248:
Line 258: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Line 285:
Line 343: − + − + Line 295:
Line 353: − + − + + + + + + + + + + + + − + − − persistent old_hdl % keep handle to COM object persistent + Line 308:
Line 376: − + − cmd = 'open';+ + + + + + + + + + + − + − % user overwrites default settings+ − flds = fields(varargin{1});+ − for n = 1 : numel(flds)+ − bb.(flds{n}) = varargin{1}.(flds{n}); − end + + + + + + + − case 'open'+ − % get handle to serial device+ − handle = open_buttonbox(bb);+ − return+ − case 'close'+ − if nargin > 0+ − handle = varargin{1};+ − else+ − handle = old_hdl;+ − end+ − fclose(handle);+ − return+ − case 'run'+ − % read incoming data+ − if isempty(old_hdl)+ − help serial_buttonbox_common + − error('Buttonbox not yet initialized'); + − end+ − handle = old_hdl;+ − otherwise+ − fprintf('Unknown option %s\n',cmd);+ − return+ − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + + + − % Exit if user closed output figure+ − if ~ishandle(win)+ − return+ − end+ − % start polling for characters (indicating start of scan)+ − navailable = handle.BytesAvailable;+ − if navailable+ − data = [];+ − while navailable+ − % read incoming data+ − [newdata, cnt] = fread(handle, navailable);+ − % concatenate possible new data + − if cnt+ − data = [data newdata(:)];+ − end+ − % check if any more data left+ − navailable = handle.BytesAvailable;+ − end+ − % output info about which button was pressed + − for n = 1 : numel(data)+ − line = sprintf('incoming: %03d %s',data(n),char(data(n)));+ − list_output(line,win);+ − end+ − end+ − pause(0.01);+ − + + − function hdl = open_buttonbox(device) − % open handle to serial device (mini buttonbox) − try − hdl = serial(device.Device, 'Baudrate', device.BaudRate, 'DataBits', device.DataBits, 'StopBits', device.StopBits, 'Parity', device.Parity); − fopen(hdl); − catch − if ~isempty(old_hdl) − fclose(old_hdl); − delete(old_hdl); − end − hdl = serial(device.Device, 'Baudrate', device.BaudRate, 'DataBits', device.DataBits, 'StopBits', device.StopBits, 'Parity', device.Parity); − fopen(hdl); − end − old_hdl = hdl; − − fprintf('Wait for device buttonbox....\n'); − tic − while hdl.BytesAvailable && toc<10 − navailable = bbox.BytesAvailable; − % wait for welcome message device − fread(hdl, navailable); − end − pause(0.5); − end − function win = list_output(line,win)+ − persistent ptr+ − persistent lines+ − persistent edt+ − Maxlines = 40; + − + − if isempty(win)+ − % initialize listbox output figure + − lines = cell(1,Maxlines); + − [lines(1:end)]=deal({''});+ − ptr=Maxlines;+ − lines(ptr) = {'Buttonbox output:'};+ − idxs = mod(ptr:ptr+Maxlines-1,Maxlines)+1;+ + + + + + + + + + + − win = figure();+ − % initialize figure to hold output text+ − edt = uicontrol('Parent',win,'Style','ListBox','HorizontalAlignment','left', ...+ + + + + + + + + + + + + − pos = get(win,'Position');+ − set(edt,'Position',[1 1 pos(3) pos(4)]);+ − end + − ptr = mod(ptr,Maxlines)+1; % start + − lines{ptr} = line;+ − idxs = mod(ptr:ptr+Maxlines-1,Maxlines)+1;+ − set(edt,'String',lines(idxs),'Value',Maxlines);+ − drawnow; + − end+ − − +
no edit summary
{{Infobox tsg
| name = Buttonbox (2018)
| image = Buttonbox_2018_1.png
| caption = 2018 Buttonbox
| downloads = {{bulleted list
| [https://surfdrive.surf.nl/files/index.php/s/PPTKCyrjLkN4XUO Buttonbox 2018]
| [https://pypi.python.org/pypi/RuSocSci RuSocSci] (Python package)
}}
}}
{{Infobox tsg
{{Infobox tsg
| name = Buttonbox
| name = Buttonbox
| caption = 2013 Buttonbox
| caption = 2013 Buttonbox
| downloads = {{bulleted list
| downloads = {{bulleted list
| [[Buttonbox 2013 Hardware|Buttonbox 2013 Hardware Design]]
| [https://surfdrive.surf.nl/files/index.php/s/72XEcu2XKSgzxjp Buttonbox 2015]
| [https://pypi.python.org/pypi/RuSocSci RuSocSci] (Python package)
| [https://pypi.python.org/pypi/RuSocSci RuSocSci] (Python package)
}}
}}
The buttonbox is used for time accurate(1ms) button press registration. We use it to register buttonpresses, soundkey, voicekey signals and to send tone onset, analog output, triggers with the BITSI protocol. It is suitable for Behavioral, EEG, MEG, and fMRI experiments. The buttonbox is connected to a computer with a usb connection.
The buttonbox is used for time accurate(1ms) button press registration. We use it to register buttonpresses, soundkey, voicekey signals and to send tone onset, analog output, triggers with the BITSI protocol. It is suitable for Behavioral, EEG, MEG, and fMRI experiments. The buttonbox is connected to a computer with a usb connection.
The output connector has two binary eight bit ports: input and output. The two ports can be used for responses (input) and stimulus triggers (output). Two 8 bits analog outputs and three 8 bits analog inputs. The output connector has a sound and voicekey which triggers when a amplitude reaches a threshold. By using the serial port, the BITSI can be used platform independently: it works on Windows, Linux and Mac OSX. Most programming environments and stimulus packages support serial communication.
The output connector has two binary eight bit ports: input and output. The two ports can be used for responses (input) and stimulus triggers (output). Two 12 bits analog outputs and three 12 bits analog inputs. The output connector has a sound and voicekey which triggers when a amplitude reaches a threshold. By using the serial port, the BITSI can be used platform independently: it works on Windows, Linux and Mac OSX. Most programming environments and stimulus packages support serial communication.
There is currently a [[Microsoft Windows driver issue]].
== BITSI Protocol ==
== BITSI Protocol ==
|-
|-
| 8 || H / h || 72 / 104
| 8 || H / h || 72 / 104
|-
|-
|}
|}
===Output===
===Output===
Output knows two protocols: '''BITSI simple''' or '''BITSI extended'''. To enter a certain protocol two buttons have to be pressed when the BITSIbox is powered. '''Press button H and A for simple mode and H and B for extended mode.'''
Output knows two protocols: '''BITSI simple''' or '''BITSI extended'''. To enter a certain protocol two buttons have to be pressed when the BITSIbox is powered or com port opens. '''[2015]Press button H and A for simple mode and H and B for extended mode. [2018]Press button E and A for simple mode and E and B for extended mode.'''
If no button is pressed when powered it boots the last known protocol. In the simple protocol every byte sent to the BITSI over the serial port, is represented at the 8 bit output.
If no button is pressed when powered it boots the last known protocol. In the simple protocol every byte sent to the BITSI over the serial port, is represented at the 8 bit output.
The 25 pins female connector has 8 inputs and 8 outputs, respectively 1-8 are inputs and 9-16 are outputs. Three analog input with an analog to digital convertor of 12 bit, pins 17,18,20 and 21. Two analog outputs with an digital to analog convertor of 12 bits on pins 22 and 23.
The 25 pins female connector has 8 inputs and 8 outputs, respectively 1-8 are inputs and 9-16 are outputs. Three analog input with an analog to digital convertor of 12 bit, pins 17,18,20 and 21. Two analog outputs with an digital to analog convertor of 12 bits on pins 22 and 23.
The inputs 1-8 will be pulled down from 5V to GND when the buttons are pressed. The outputs 9-16 will be pulled up from GND to 5V when the output is activated.
===Serial port===
===Serial port===
* Rate must be set 115200, Parity to None, Data Bits to 8 and Stop Bits to 1, Uncheck FIFO Interrupt.
* Rate must be set 115200, Parity to None, Data Bits to 8 and Stop Bits to 1, Uncheck FIFO Interrupt.
[[File:Buttonbox1.png]]
[[File:Buttonbox2.png]]
'''Adding Marker (output)'''
'''Testing Buttonbox'''
When pressing on the A button within the input channel tester. You will see the following ASCII code.
[[file:testbuttonbox.png]]
'''Adding Marker'''
[[file:testbuttonbox.png]]
[[file:output_buttonbox1.png | 800px]]
'''Testing Markers (output)'''
'''Testing Markers (output)'''
=== Python/PsychoPy ===
=== Python/PsychoPy ===
Download this site-package to use the buttonbox: [https://pypi.python.org/pypi/RuSocSci rusocsci]
Download this site-package to use the buttonbox: [https://pypi.python.org/pypi/RuSocSci rusocsci]
or use in windows command 'pip install --upgrade rusocsci'
'''Example using buttons from the buttonbox in Python:'''
'''Example using buttons from the buttonbox in Python:'''
# send a marker
# send a marker
bb.sendMarker(val=100) #This is your marker code, range code 1-255
bb.sendMarker(val=100) #This is your marker code, range code 1-255
</syntaxhighlight>
'''Example using BITSI extended in Python:'''
<syntaxhighlight lang="python" line>
#!/usr/bin/env python
# import the rusocsci.buttonbox module
from rusocsci import buttonbox
# make a buttonbox
bb = buttonbox.Buttonbox()
# select a function
bb.sendMarker(val=(ord(X))) #select pulse time
bb.sendMarker(val=2) #set time of dureation pulse to 2ms
bb.sendMarker(val=(ord(M))) #select marker out
bb.sendMarker(val=115) #set marker value 115
</syntaxhighlight>
'''Example using BITSI extended analog read in Python:'''
<syntaxhighlight lang="python" line>
#!/usr/bin/env python
# import the rusocsci.buttonbox module
import serial
# make a buttonbox
ser = serial.Serial("COM2", 115200, timeout = 0.10 )
ser = serial.Serial("/dev/ttyUSB0", 115200, timeout = 0.10 )
while True:
ser.write('A1')
ser.flush()
x = ser.readline()
visual.TextStim(win, text=x).draw()
# black screen for 1000 ms
win.flip()
key = event.getKeys()
try:
if key[0]=='escape':
break
except:
continue
</syntaxhighlight>
</syntaxhighlight>
<syntaxhighlight lang="matlab" line style="height:50em; overflow:auto;">
<syntaxhighlight lang="matlab" line style="height:50em; overflow:auto;">
function handle = buttonbox(cmd,varargin)
function ret = buttonbox(cmd,varargin)
% to initialize connection:
% to initialize connection: (omit 2nd argument if defaults apply)
% define settings as structure with fields:
% define settings as structure with fields:
% bb.Device = 'COM2';
% bb.Device = 'COM2';
% handle = buttonbox('open',bb)
% handle = buttonbox('open',bb)
%
%
% to run:
% to run: (receiving incoming data, check code for own purposes)
% buttonbox('run',handle);
% buttonbox('run');
%
% or
%
% to send a marker: (marker: a numeric value; Fs: sampling frequency device)
% buttonbox(marker,Fs)
%
% or
%
% to wait for a buttonpress:
% buttonbox('clear'); (make sure buttonbox buffer is emptied)
% key = buttonbox('wait_keypress')
%
%
% to close the connection:
% to close the connection:
% buttonbox('close',handle);
% buttonbox('close');
persistent old_hdl % keep handle to COM object persistent
% set defaults
% set defaults
bb.Device = 'COM2';
bb.Device = 'COM2';
bb.DataBits = 8;
bb.DataBits = 8;
bb.StopBits = 1;
bb.StopBits = 1;
bb.Parity = 'none';
bb.Parity = 'none';
if nargin < 1
if nargin < 1
cmd = 'open';
end
if nargin > 1 && isstruct(varargin{1})
% user overwrites default settings
flds = fields(varargin{1});
for n = 1 : numel(flds)
bb.(flds{n}) = varargin{1}.(flds{n});
end
end
if nargin==1 && isnumeric(cmd)
error('Please also specify acquisition sampling frequency of device that receives the marker');
end
end
if nargin > 1
if nargin > 1 && isnumeric(cmd)
marker = cmd;
cmd = 'marker';
Fs = varargin{1};
end
end
if ~any(strcmp(cmd,{'open','close'}))
if isempty(old_hdl)
help serial_buttonbox_common
error('Buttonbox not yet initialized');
end
handle = old_hdl;
end
switch cmd
switch cmd
case 'marker'
fwrite(handle, uint8(marker));%IOPort('Write', handle, uint8(marker), 1); % last argument: blocking
WaitSecs(2/Fs);
fwrite(handle, uint8(0));%IOPort('Write', handle, uint8(0), 0); % last argument: blocking
return
case 'clear'
while(handle.BytesAvailable)
fread(handle, 1);
end
ret = []; % meaningless
return
case 'open'
% get handle to serial device
handle = open_buttonbox(bb);
ret = handle;
return
case 'close'
if nargin > 1
handle = varargin{1};
else
handle = old_hdl;
end
end
fclose(handle);
delete(handle);
ret = [];
return
case 'run'
% read incoming data
% code proceeds below ....
case 'wait_keypress'
% start polling for characters (indicating start of scan)
while(1)
data = [];
while handle.BytesAvailable
navailable = handle.BytesAvailable;
% read incoming data
[newdata, cnt] = fread(handle, navailable);
% concatenate possible new data
if cnt
data = [data newdata(:)];
end
end
if ~isempty(data)
ret = data;
return
end
end
otherwise
fprintf('Unknown option %s\n',cmd);
ret = [];
return
end
% only gets here when cmd = 'run'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% only gets here when cmd = 'run' %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Initialize output figure
% Initialize output figure
win = list_output(' ',[]);
win = list_output(' ',[]);
while 1
while 1
% Exit if user closed output figure
if ~ishandle(win)
return
end
% start polling for characters (indicating start of scan)
navailable = handle.BytesAvailable;
if navailable
data = [];
while navailable
% read incoming data
[newdata, cnt] = fread(handle, navailable);
% concatenate possible new data
if cnt
data = [data newdata(:)];
end
% check if any more data left
navailable = handle.BytesAvailable;
end
% output info about which button was pressed
for n = 1 : numel(data)
line = sprintf('incoming: %03d %s',data(n),char(data(n)));
list_output(line,win);
end
end
pause(0.01);
end %while 1
end %while 1
function hdl = open_buttonbox(device)
% open handle to serial device (mini buttonbox) WaitSecs(0.002); % just to load mex-file into memory
try
hdl = serial(device.Device, 'Baudrate', device.BaudRate, 'DataBits', device.DataBits, 'StopBits', device.StopBits, 'Parity', device.Parity);
fopen(hdl);
catch
if ~isempty(old_hdl)
fclose(old_hdl);
delete(old_hdl);
end
hdl = serial(device.Device, 'Baudrate', device.BaudRate, 'DataBits', device.DataBits, 'StopBits', device.StopBits, 'Parity', device.Parity);
fopen(hdl);
end
old_hdl = hdl;
fprintf('Wait for device buttonbox....\n');
tic
while hdl.BytesAvailable && toc<10
navailable = bbox.BytesAvailable;
% wait for welcome message device
fread(hdl, navailable);
end
pause(0.5);
end
function win = list_output(line,win)
persistent ptr
persistent lines
persistent edt
Maxlines = 40;
if isempty(win)
% initialize listbox output figure
lines = cell(1,Maxlines);
[lines(1:end)]=deal({''});
ptr=Maxlines;
lines(ptr) = {'Buttonbox output:'};
idxs = mod(ptr:ptr+Maxlines-1,Maxlines)+1;
win = figure();
% initialize figure to hold output text
edt = uicontrol('Parent',win,'Style','ListBox','HorizontalAlignment','left', ...
'Max',Maxlines,'BackgroundColor',[1 1 1],'Visible','on','String',lines(idxs), ...
'Max',Maxlines,'BackgroundColor',[1 1 1],'Visible','on','String',lines(idxs), ...
'FontSize',12,'Value',Maxlines);
'FontSize',12,'Value',Maxlines);
pos = get(win,'Position');
set(edt,'Position',[1 1 pos(3) pos(4)]);
end
ptr = mod(ptr,Maxlines)+1; % start
lines{ptr} = line;
idxs = mod(ptr:ptr+Maxlines-1,Maxlines)+1;
set(edt,'String',lines(idxs),'Value',Maxlines);
drawnow;
end
end
end
</syntaxhighlight>
end</syntaxhighlight>