SoftAP & Wi-Fi QR Code Setup: Step 1 Guide

Aug 10, 2025 by ADMIN 43 views

MVP2 SoftAP Startup, Shutdown, and Wi-Fi QR Code Implementation (Step 1)

Hey everyone! Let's dive into the exciting details of implementing SoftAP startup, shutdown, and Wi-Fi QR code generation – specifically focusing on Step 1 of this journey. This is a crucial phase in enhancing our project's user experience, making the initial setup a breeze. We will discuss the key components, the implementation strategy, testing methodologies, and acceptance criteria to ensure a smooth rollout.

Overview

In this initial step, our main objective is to implement the foundation for SoftAP startup and shutdown, along with displaying a Wi-Fi connection QR code. This feature will allow users to easily connect to our device's Wi-Fi network by simply scanning the QR code, eliminating the need for manual SSID and password entry. This will greatly improve the user experience, especially during the initial setup process. Guys, this is where the magic begins – making tech accessible and easy for everyone!

Implementation Details

SoftApTimeSyncController.begin/cancel

First, we'll focus on the SoftApTimeSyncController, which is the heart of our SoftAP management. The begin function will handle the startup process of the SoftAP, configuring the necessary settings and getting the network up and running. This includes setting the SSID (Service Set Identifier) and password, as well as configuring the IP address and other network parameters. On the other hand, the cancel function will gracefully shut down the SoftAP, releasing resources and ensuring a clean exit. This is super important to avoid conflicts and keep things tidy.

SSID/PSK Generation (PoC Compliant)

To ensure security and uniqueness, we'll implement SSID and PSK (Pre-Shared Key) generation following our Proof of Concept (PoC) guidelines. This means that the SSID and password will be generated based on a specific algorithm, making them difficult to guess while still being user-friendly. This is a critical step in securing the network and preventing unauthorized access. We're aiming for a balance between security and usability here. The generated credentials need to be secure, unique, and yet easy enough for the user to connect without hassle.

Wi-Fi QR Code Rendering in TimeSyncViewImpl

Now, let's talk about the visual part – the Wi-Fi QR code. This is where the TimeSyncViewImpl comes into play. This class will be responsible for rendering the QR code on the device's display, making it scannable by smartphones and other devices. The QR code will encode the SSID, password, and other necessary information for a seamless connection. We want to make the display clear and the QR code easily scannable from various devices and angles. The visual element needs to be crisp and error-free for the user to connect effortlessly. This is about creating a smooth user interaction.

Pure Logic in TimeSyncCore.buildWifiQrPayload

To keep our code clean and maintainable, we'll add a pure logic function, TimeSyncCore.buildWifiQrPayload, to the lib/ directory. This function will be responsible for constructing the payload for the QR code. This involves formatting the SSID, password, and other information into a string that can be encoded into a QR code. By isolating this logic, we can easily test and reuse it in other parts of the application. This separation of concerns helps maintain the cleanliness and testability of the code. This pure function approach ensures that the complex logic of payload construction is self-contained and easily verifiable.

TDD/Quality Assurance

Prioritizing TimeSyncCore Tests

Before diving deep into the implementation, we'll prioritize adding tests for TimeSyncCore. This Test-Driven Development (TDD) approach ensures that our core logic is robust and reliable from the get-go. By writing tests first, we define the expected behavior of the code and can verify that our implementation meets these expectations. This is the foundation of building reliable systems. We want to catch issues early, and TDD helps us do just that.

Comprehensive Testing in PR

Our Pull Request (PR) process will include rigorous testing to maintain code quality. We'll run pio run to build the project, pio test -e native to execute native tests, and python scripts/test_coverage.py --quick to check code coverage. This comprehensive approach ensures that our changes are thoroughly tested and don't introduce regressions. This suite of tests will give us confidence in the changes we're making. A robust testing process ensures quality and stability.

Acceptance Criteria (DoD)

To ensure that we've met our goals for this step, we have defined specific Acceptance Criteria, also known as Definition of Done (DoD).

Step 1 Visible on Screen

The primary acceptance criterion is that Step 1 of the implementation should be visibly displayed on the screen. This confirms that the core functionality is working and the user interface is correctly rendering the initial setup process. This visual confirmation is crucial for user understanding and confidence.

Passing Tests and Coverage

Another crucial criterion is that all tests must pass, and code coverage should be green. This means that our tests are verifying the expected behavior, and we have sufficient coverage to ensure that most of the code is being tested. This gives us confidence in the quality and stability of our implementation. This ensures we're not just building features, but building them well.

References

For reference, we'll be looking at the PoC (Proof of Concept) implementation located in src/spikes/aim36/main.cpp and the design document doc/design/softap_qr_time_sync_poc.md. These resources provide valuable insights into the original design and implementation, helping us stay aligned with the project goals. These references serve as our guiding lights throughout the development process. They encapsulate the initial concepts and design considerations.

Conclusion

So there you have it, guys! That's Step 1 of our SoftAP startup, shutdown, and Wi-Fi QR code implementation. It's a big step towards making our device more user-friendly and accessible. By focusing on clear implementation, rigorous testing, and well-defined acceptance criteria, we're setting ourselves up for success. Let's keep the momentum going and make this feature awesome! Remember, every step forward contributes to a smoother user experience. Let's make tech accessible and seamless for everyone!

Let's summarize the key takeaways:

Implement SoftApTimeSyncController.begin/cancel: Manage the SoftAP lifecycle effectively.
Generate SSID/PSK: Secure and unique credentials for the SoftAP.
Render Wi-Fi QR code: Simplify Wi-Fi connection for users.
Isolate logic: TimeSyncCore.buildWifiQrPayload ensures clean and testable code.
Prioritize testing: TDD approach with comprehensive test suite.
Meet acceptance criteria: Step 1 visible and all tests passing.

This approach not only ensures a robust and reliable implementation but also sets the stage for future enhancements and features. Let's keep innovating and building amazing things!

Remember, the goal is to create a seamless user experience, and this first step is a significant stride in that direction. By focusing on usability, security, and quality, we're building a product that users will love. So, let's get to work and make it happen!

#ycums #Aimatix