using Arduino design a juice mixer. As shown in Fig, it has three compartments for lemon, blueberry, and strawberry juices. Each juice container is connected to a food-grade pump. The machine has two volume options; 1 cup and cup-5 pitcher. 1 cup takes 5 seconds to fill and 25 seconds for the pitcher. The following buttons are arranged to give you different flavor combinations, Button 1 for pure strawberry, button B2 for pure lemon, and button B3 for blueberry. If you want blueberry/lemon juice, then you press button B2 then button B3. The filling will start when you choose the amount needed, i.e. 1 cup or 5 cups by pressing Cup or Pitcher button. If you want blueberry/strawberry mix, then press B1 and B3 then the fill button (Cup or Pitcher button) and if you want lemon/strawberry mix then you press B1 and B2 then the fill button. Use time delay to control the amount of juice needed. For example, 1 cup of blueberry/lemon juice means 2.5 seconds for the lemon and 2.5 seconds for the blueberry. If only strawberry is needed then 5 seconds is needed. If a pitcher is needed, then 25 seconds is needed. After getting the juice in the delivery cup or pitcher, a mixer will mix the juice for 10 seconds to get a homogenous juice.

B1 B2 B3 Cup Pitcher B1 B2 B3 Cup Pitcher