My Role in Testing FFSB
As a Software QA Engineer, I was responsible for testing the FFSB (Firmware For Sensor Board), ensuring that it performs reliably and efficiently. My role in testing involved comprehensive System Testing and Integration System Testing, focusing on the interaction between various components and their communication with the PC.
System Testing
I performed system-level testing to verify that all components—such as LEDs, fans, sound messages, button messages, temperature sensors, door buttons, and the power management for solar panels and battery—functioned as intended. This involved:
- Functional Testing: Ensuring that each component operated according to its specifications, such as the accuracy of temperature readings, fan control, solar panel performance, and real-time monitoring of the battery status.
- Edge Case Testing: Simulating various edge cases, like simultaneous triggering of multiple components (e.g., door button and fan control) to test system stability under high-load conditions.
Integration System Testing
During integration testing, I ensured the FFSB board's smooth communication with the PC via the COM interface. This involved:
- Real-Time Data Communication: Testing the board's ability to send status updates (including solar panel and battery status) and receive control commands every minute without delays or data loss.
- API Integration: Validating that the board's firmware processed incoming commands from the PC correctly and updated the components (LEDs, fans, solar panel management, etc.) accordingly.
- Seamless Firmware Modifications: Ensuring that the board continued to function correctly even after making iterative changes to the firmware, thanks to the clear and easily understandable code structure.
Firmware Validation
The firmware, written in C, was designed with simplicity in mind to allow easy updates and improvements. My role involved:
- Iterative Testing: After each firmware update, I performed regression tests to ensure the board maintained its stability and functionality, including the accurate monitoring of solar panel efficiency and battery status.
- Code Review: I assessed the code's structure for clarity, ensuring it was easily understandable and modifiable, facilitating future improvements and reducing development time.
Through my testing efforts, I ensured that the FFSB Sensor Board worked seamlessly within the system, providing reliable real-time updates and component control for the Public Information System, while ensuring stable power management through solar panel and battery control.
