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Can an expect help with the Flow chart illustrating the operations performed by the program using Arduino   A customer contact you to implement a control system for an air conditioning unit

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Can an expect help with the Flow chart illustrating the operations performed by the program using Arduino

 

A customer contact you to implement a control system for an air conditioning unit. The system needs to offer the following functionalities: 

1) Be turned only during the day: the system should turn off when the overall brightness detected by a light sensor is below a user-defined threshold. 

 

2) When the system is on: 

a. The user can select a desired temperature by pressing a button, the minimum temperature is 16°C and the maximum is 25°C. Every time the button is pressed the desired temperature increments by one degree until it reaches the maximum and restart from the minimum (i.e. the temperature sequence is 16?17?18?19?20?21?22?23?24?25?16 etc);

 b. The desired temperature is shown on an 8-segment display as surplus with respect to 16°C, i.e. the display should show "0" for 16°C, "1" for 17°C etc;

 c. The room temperature is read by an analog temperature sensor, with 1V corresponding to 10°C and 4V corresponding to 30°C - use the potentiometer to emulate the temperature sensor on your board; 

d. If the room temperature is above the desired temperature, the cooling circuit (red channel of RGB led) should be turned on with a PWM proportional to the difference between room and desired temperature;

 e. If the room temperature is below the desired temperature, the heating circuit (blue channel of RGB led) should be turned on with a PWM proportional to the difference between room and desired temperature; 

 

3) If the system is off, both the heating and cooling circuits should be turned off and the 8- segment display should show "-".