ok = open_serial(1, 2, 115200); // port 2, baudrate 115200 if ok ~= 0 then error('Unable to open serial port, please check'); end for i = 1:50 //Run for 50 iterations val = cmd_analog_in(1, 5) // read analog pin 5 (ldr) disp(val); if(val < 300) // Setting Threshold value of 300 cmd_digital_out(1, 11, 1) // Turn ON LED else cmd_digital_out(1, 11, 0) // Turn OFF LED end sleep(500) end close_serial(1);