computer on
light on
keithley 120ma
keithley 220ma
keithley 120ma
keithley 20ma
keithley 10ma
keithley off
octave:32> t=1:240000; y=filter(ones(1,4000)/4000,1,dac(t)-calib*adc(t));
octave:33> t=190000:210000; plot(t,y(t));
