C Programming for Temperature Controlled Fan

Temperature Controlled Fan You are required to design a system that controls the speed of a fan's rotation. The speed at which the fan rotates is determined by the ambient temperature, i.e. as the temperature increases, so does the rotation speed of the fan. The system makes use of a small D.C. Motor connected to a microcontroller via a H-Bridge configuration, so that the direction of the fan's rotation can also be controlled. As the fan rotates, a small disk attached to shaft of the motor passes through a photo interrupter, this device allows us to measure the number of rotations in a specific time, usually measured as Rotations Per Minute (RPM). The user of the system can configure the speed of rotation for a given temperature. This is achieved by using a 4x4 keypad, along with a 128x64 graphics liquid crystal display, to provide feedback to the user. The initial LCD layout is shown below when normally operating. Temperature Fan's Rotation 22C 2000RPM Enter Pin to Change System Parameters A four digit PIN number is required to gain access to allow the user to configure the system's parameters. The method adopted for entering the pin number, needs to be a non-blocking approach, as the motor's speed needs to be constantly monitored and controlled as a background task. As soon as the four digits have been entered, validation of the entered pin is required. If the PIN number has been entered incorrectly, an appropriate message needs to be displayed for 3 seconds before returning to the normal operation. A correctly entered pin, will display the configuration menu as below Please select one of the following 1. Change PIN number 2. Stop Motor 3. Start Motor 4. Change Direction 5. Configure Temperature vs RPM .................... Please read 'BRIEF' for more info. I have attached files which I have started which will provide the foundation of the work. The Menu section is almost complete. I have a basic scrolling cursor program which will need to be developed. I also have a program to show the temp on the screen. I used HEW ide, however this is not very well known, so any programming will have to be sent to me for testing. Deadline 7-10 days?