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Automated Pet Food Dispenser + Digital Anemometer


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I am from Guatemala and also I am currently a student at John Brown University in Siloam Springs, Arkansas. For my Embedded Systems project, I created an automated pet food dispenser and a digital anemometer. The first part was the automated pet food dispenser. For this device, I am using the MSP430F5529 from Texas Instruments.The objectives of this part were to control the dispensing system. This included allowing the user to set the current time (in 24 hrs format), dispensing time (in 24 hrs format), amount per servings (from 25 g to 750 g in 25 g increments), weekly increment (from 0 g to 150 g in 25 g increments), operate the motor, reset settings, and display settings. The requirements were to control a motor and be able to provide exact and precise servings at a previously selected schedule. Food needed to be dispensed a maximum of 6 times in a day. A LCD screen needed to display what specifications the user needed to introduce concerning to the amount of food and the respective schedule. The user needed to be able to input its specifications through 4 push buttons. The first buttons was RESET, to allow the user to set new specifications. The second button was OK. The third and fourth buttons were respectively UP and DOWN to select the desired specifications.  In addition, the connections needed to be securely tightened in such a way that they would not disconnect when the device is shaken or rudely moved. Finally, the interface, which included a LCD screen and pushbuttons, needed to be user friendly.

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                The second part of the project was the digital anemometer. This part consisted of reading the signal coming from a cup anemometer with a MSPEXP430F5529, and displaying the wind speed in meters per second on the graphical screen. The program needed to update the wind speed at least once per second. Furthermore, the reading needed to be as accurate as possible. Thus, this part consisted in reading an analog signal from a cup anemometer and transforming it into digital.

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