I’ve run into a mental block concerning the exact implementation of the design for the physical construction of the Rita Shaker, so I’ve decided to focus on making sure I can run the servo motors with the arduino board. The arduino program actually has a sample program to control a servo motor in the servo library.
I uploaded the program and nothing happened. This may have something to do with my use of the Arduino Motor Shield R3.
After searching various sites for how to interface a servo motor with the motor shield I am still frustrated. In most of the posts found they talk about interfacing with a stepper motor. If I wanted I could completely abandon the shield and just interface directly with the arduino board. Now that I reread the page that describes the use of the motor shield I am aware that it does not list servo motors as one of the suggested items to run with it. This may be because of their relative simplicity and how easy it is to use them directly with the board.
The sites I looked at can be found here, here, and here.
I am going to consult with some people before I go and cut off the ends of the wiring for the servo motors so I can connect it to pins on the arduino board.
The following are the list of of supplies that I have ordered to build the electronic portion of the device.
Arduino Rev 3 Starter Kit : The Arduino Uno Board was already supplied in lab but I am required to purchase one for another class I am currently taking so I decided to buy this kit so I also have the bread board, holder, and wires for use in this project.
Futaba S3003 Servo Standard (2): After investigating several different models of servo motors I settled on this one based on reviews and torque provided.
Microtivity Push-and-Lock Button Switch: I am purchasing with the desire for an on/off switch in mind but also with further development for different shaking intervals.
Wall Adapter Power Supply 9VDC 650 mA: I thought about using a battery adapter but decided on the wall adapter because of not wanting to purchase large quantities of batteries if this proves to be of practical use for my job.
Arduino Motor Shield R3 (Data Sheet): I am planning on trying to wire the device without this shield first. If I am unsuccessful I want to have the shield on hand.
I am still not sure if I am going to need an additional power supply for the servo motors or if I am going to be able to simply draw the power from the board.
The plan for completing the project is as follows:
Finalize List of Electronic Components and order them. (Accomplished)
Visit home depot to find hardware for contraptions body
Investigate possible code for programming device.
Electronic parts should arrive.
Begin testing with code.
Assemble frame and connect to arduino. Take video of this for benchfly.
Run tests so I have time to tinker if it fails to work as desired. Work on instructible entry.
Refine device if needed and take data for figshare.
Refine the code and make adjustments to the physical aspects of the device. Also, I hope to improve the aesthetics of the device.
This past weekend I went over to my parents’ house to have a brainstorming session concerning the final project with the Arduino board. We began by discussing what may possibly interest me and what may also be feasible with regard to the time constraints. After relating the story about the light system for the bike, the conversation turned to what could possibly be of use to me. I stopped to think of what annoys me most in my life and my mind quickly leapt to the current promotion going on at my work. I am a bartender at Chili’s Grille & Bar and we are currently halfway through another one of our many margarita contests. These contests necessitate my making a great deal of margaritas during my shifts. For the most part these are not that time consuming, however, the margaritas made with fresh lime juice necessitate vigorous shaking that varies from 5 shakes to 32 shakes. Now, simply making one of these is not a difficult ordeal, but when a server rings in five of them during the rush it can be very stressful and physically taxing to accomplish.
During these contests I always daydream of having a device that akin to a blender that could shake these drinks for me, while I focused on another task. I decided that I would investigate the possibility of constructing and programming such a device with the use of the Arduino board. After examining the Arduino store it appears to me that this is a distinct possibility. Some of the components that I believe may be of use to me during the construction are listed below.
Box for Arduino
Arduino Motor Shield Rev3
Servo Module (Possibly 2-3)
I just became aware that to but components directly from the Arduino store may be cost prohibitive as the shipping costs are exorbitant. After browsing through the page where they list their licensed distributors, it appears that Adafruit Industries may have the most comprehensive set of components from which I could choose.
After looking at the sites and thinking about shipping costs it dawned on me that I should check out Amazon.com, as I have a Prime membership with them and their products tend to be less expensive in general.
Amazon.com (possible components to buy)