function [exectime, data] = senscode(seg, data)switch seg, case 1,   data.y = ttAnalogIn(1);  exectime = 0.00005; case 2,  ttSendMsg(3, data.y, 80); % Send message (80 bits) to node 3 (controller)  exectime = 0.0004; case 3,  exectime = -1; % finishedend