Automated Juice Mixer


by Lucas Patrick and Danny Tsung

Sound Bite

The Automated Juice mixer is a juice mixing device that allows user to create desired drinks with up to four different ingredients through a user friendly interface.



Summary

Mixing juices can be a very tedious job. We have created a juice mixer that allow user to mix drinks with desired amount and manage their recipes with ease. We use RS232 serial port connection between the computer and our unit so that user will be able to dispense/blend their desired recipe easily. The connection also allow user to upload/download recipes to the EEPROM embedded in the microcontroller.



High Level Design

Idea

We decide to make a juice mixer after observing many people complaining how tedious it is mixing any kind of liquids. Many people would be happy to see a device that would allow the user to create drinks and manage recipes using easy to understand graphical user interface.



Background Math

The background math has to do with formulating the conversion between the time we open the valves for each of the bottles and the amount of liquid that comes out from the tubes. In order to do so, we need to record the time required to dispense a certain amount for each individual bottles due to the fact that each of our valves are handcrafted by us so that the dispensing rate might vary quite a bit and also due to the fact that we placed the blender cup at the very right edge of our machine and each tubes travels different distance to the cup. The final equation we formulated are based on the test result we use and linearizing them.


Link: http://instruct1.cit.cornell.edu/courses/e...nal_Project.htm