what is code to send a signal to ardino uno pin (ardino pin is connected to servo motor),when in the below program if tomato1 is absent and i need to run motor1 in that case.?plz help

for i = 1:object if stats(i).Centroid(2) > 0 && stats(i).Centroid(2) < 160 sprintf('Tomato 1 is there') else sprintf('Tomato 1 is absent') end end for i = 1:object if stats(i).Centroid(2) > 160 && stats(i).Centroid(2) < 320 sprintf('Tomato 2 is there') else sprintf('Tomato 2 is absent') end end for i = 1:object if stats(i).Centroid(2) > 320 && stats(i).Centroid(2) < 480 sprintf('Tomato 3 is there') else sprintf('Tomato 3 is absent') end