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Thank you for joining us for this session. We will talk about the processes of making MVP applications. This is the application we will introduce today.
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My name is Yurie Yamane, and my co-speaker is Masayoshi Takahashi from Japan. We have both developed a mobile application as part of our project.
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Our application is called Satri, which is a model of a smart toilet. Do you know about Japanese toilets?
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They automatically open and close the lid when a person approaches. The toilet features a warm water washer, so you can use water instead of toilet paper. You can see more details in our PDF or video, which are both available on the website.
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Totoro is a famous maker of toilets, and this model is their trademark.
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Now, I have created a model of this toilet using LEGO Mindstorms, as they are versatile for education. I developed teaching materials for embedded system developers. Learning materials are significant for students. This model illustrates how to use a state machine diagram to program behavior. This way, I can teach students how to implement these concepts using LEGO.
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Here's a video of the model: when a person approaches, a sensor detects their presence, and the lid opens automatically. If they sit down and press a button, the toilet will activate. If they stand up, the sensor detects their departure, and the lid closes.
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Next, let's talk about the programming language we used for development: Mruby. It is a new language designed for embedded systems. Mruby has a minimal implementation, which allows easier integration with specific hardware. However, it doesn't support certain features like keyword arguments yet.
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Mruby is notably used across various applications, including web servers, games, and IoT devices. We aim to discuss the data structure of the Mruby application. This gives you an overview of how we integrate custom libraries into a single project. We utilize both standard libraries and custom gems for Mruby applications.
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Let me explain a key concept: we want to unify the API for different hardware components. Developers should not need to worry about specific hardware details only relevant for their application. For example, the API for motor control should be similar across different devices, so users can easily swap one component for another while maintaining the same functionality.
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To achieve this, we propose a compatibility layer. The goal is to abstract the hardware differences so that users can work seamlessly with different platforms and architectures. However, the integration process may require more effort, as various compatibility layers exist for different devices.
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Another pertinent issue is the memory consumption of Mruby. While it is efficient, it may still be too hefty for some microcontrollers. We propose creating a compatibility solution to address this issue, making it easier and more efficient for developers to bring their applications to a broader range of hardware.
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We also need to ensure that this compatibility layer is easy to use. If developers can navigate our API without extensive learning curves, we believe we can encourage them to adopt Mruby for their projects. It is crucial to ensure that tutorials, documentation, and examples are readily available for all components involved.
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One existing platform we can learn from is Arduino. Arduino has a well-established library system that provides a unified interface across various boards. Additionally, the Arduino IDE streamlines the process of developing applications, making it more accessible for enthusiasts.
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The ease of use and extensive community support for Arduino mean that many users can get their projects up and running quickly, even if they do not have a background in programming. We should strive to make the same kind of environment for Mruby.
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Further, supporting multiple hardware platforms with a singular codebase can generate a more incredible developer experience. We can also better facilitate innovation when developers spend less time figuring out compatibility issues and more time on creating unique applications. By developing more libraries and resources like Arduino, we can enhance the Mruby ecosystem.
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We faced various challenges of memory limitations while deploying applications onto multiple boards. In particular, we have noticed memory issues during initialization phases, which may prompt us to modify the original code or configurations.
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As we continue refining and deploying Mruby to more platforms, our primary goal remains to simplify the process for our users. We want our libraries to offer a clean interface while keeping the performance overhead manageable.
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In conclusion, we believe that by improving Mruby's compatibility and library support, we can create an engaging and robust ecosystem similar to that of Arduino. If you feel inspired by our project and want to contribute, we welcome your involvement!
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Thank you so much for listening to our presentation.
