What's your process for testing microcontroller code before deployment?

2 Integration testing

Integration testing is the process of checking how different components or modules in your code work together. Integration testing can help you identify and resolve compatibility issues, interface errors, and performance bottleneecs. You can use a debugger, such as GDB or JTAG, to inspect and modify your code variables, registers, and memory while it is running on the target device. You can also use a logic analyzer, such as Saleae or Sigrok, to capture and analyze the signals and protocols between your device and other peripherals.

3 System testing

System testing is the process of evaluating the functionality and usability of your code as a whole. System testing can help you verify that your code meets the requirements and specifications of your project, as well as the expectations and needs of your users. You can use a test plan, such as IEEE 829 or ISTQB, to define and document your test objectives, scope, criteria, and procedures. You can also use a test case, such as TestRail or TestLink, to design and execute your test scenarios, steps, and results.

4 Regression testing

Regression testing is the process of retesting your code after making changes or updates. Regression testing can help you ensure that your code does not introduce new bugs or break existing features. You can use a version control system, such as Git or SVN, to track and manage your code changes and revisions. You can also use a continuous integration tool, such as Jenkins or Travis CI, to automate your test execution and reporting whenever you commit or push your code.

5 Stress testing

Stress testing is the process of subjecting your code to extreme or abnormal conditions. Stress testing can help you evaluate the robustness, stability, and resilience of your code under high load, low power, or harsh environment. You can use a load generator, such as JMeter or LoadRunner, to simulate high traffic, requests, or data on your device. You can also use a power supply, such as Agilent or Rigol, to vary the voltage, current, or frequency of your device.

6 Acceptance testing

Acceptance testing is the process of validating your code with the involvement of your stakeholders, such as clients, users, or regulators. Acceptance testing can help you confirm that your code satisfies the expectations and requirements of your stakeholders, as well as the standards and regulations of your industry. You can use a feedback form, such as SurveyMonkey or Google Forms, to collect and analyze the opinions and suggestions of your stakeholders. You can also use a certification tool, such as UL or CE, to verify and certify the compliance and safety of your device.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?