%
% manufacturer: http://www.hantek.com.cn/en/ProductDetail_32.html
% download manual, drivers, etc: http://1drv.ms/1cAa0tq
%
% Send Command Word	Perform Operation
% a + line break (Hereafter, every command must take 0x0a as the line break to over, ignore the following)	Back to device model
% suXXXX	CH1 preset output voltage, units V; e.g. 1200 stands for 12.00V
% siXXXX 	CH1 preset output current, units A; e.g. 2500 stands for 2.500A
% saXXXX	CH2 preset output voltage, units V; e.g. 1200 stands for 12.00V
% sdXXXX	CH2 preset output current, units A; e.g. 2500 stands for 2.500A
% O0	Output indicator light switch-off
% O1	Output indicator light switch-on
% O2	Parallel, series, trace, output indicator light switch-off
% O3	Series, trace, output indicator switch-off; Parallel indicator light switch-on
% O4	Parallel, trace, output indicator switch-off; Series indicator light switch-on
% O5	Parallel, series, output indicator switch-off; Trace indicator light switch-on
% O6	CH1 indicator light switch-on
% O7	CH2 indicator light switch-on
% O8	CH3 3.3V indicator light switch-on
% O9	CH3 5V indicator light switch-on
% Oa	CH3 2.5V indicator light switch-on
% rv	Read the measured voltage of CH1
% ra	Read the measured current of CH1
% ru	Read the preset voltage of CH1
% ri	Read the preset current of CH1
% rh	Read the measured voltage of CH2
% rj	Read the measured current of CH2
% rk	Read the preset voltage of CH2
% rq	Read the preset current of CH2
% rm	Read the device working mode
% rl	Read lock state
% rp	Read CH2 state
% rs	Read CH1 state
% rb	Read CH3 state
	

s = serial('COM3');
%tambien funciona abriendo sesión Visa:
%s=visa('agilent','ASRL3::INSTR');
%set(s,'terminator','LF');

fopen(s)
%out = query(s,'a')%queries idn

sal = query(s2,'rv')%pregunta voltaje CH1
out = fprintf(s,'si1000')%setea corriente CH1
out = fprintf(s,'su1200')%setea voltaje CH1

out = fprintf(s,'su1200');%sets voltage of CH1 12V
out = fprintf(s,'si1000');%sets current of CH1 10A
out = fprintf(s,'sa0100');%sets voltage of CH2 1V
out = fprintf(s,'sd0020');%sets current of CH2 0.2AV
fclose(s)