Propose the H/W and then write S/W for controlling temperature inside oven (80-260) based upon the rotation of stepper motor. Suppose that there are the directional steps of stepper motor control four heating coils. 1- If the direction of rotation is forward, temperature inside oven will increase by connecting a coil that has higher thermal energy than one before. 2- If the direction of rotation is backward, temperature inside oven will decrease by connecting a coil that has less thermal energy than one before. Stepper motor positions against temperature levels of each coil are: position Step 1 11H temperature 80-050H 2 22H 140-08CH 3 44H 200=0C8H 4 88H 260-104H