function s=output(port,bit,state)

%     SOSI-M2 V1.0 MATLAB M-file
%
% Set digital output high or low. Channel must be configured as an output.
% See also output.m
%
% Arguments: output(port,bit,state)
%
% port: 'COM2', for example
% bit: channel 0 - 6
% state: 'h' or 'l'

delayt=0.1;

% Check input arguments
if strcmpi(state,'h')
    s1=sprintf('#o%dh',bit);
elseif strcmpi(state,'l')
    s1=sprintf('#o%dl',bit);
else
    disp('Argument Error: state');
    return
end


try

% Set up port
    spo=serial9600(port);
    wakeupsub(spo);

% Change output bit
    s=cmd(spo,s1,delayt);
    fclose(spo);
    return;

catch
    s=lasterr;
    disp(s);
    fclose(spo);
    return;
end