Test/ctub plus power test

[XuGuohui]

submission notes

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Problem

What Bug or Missing Feature does this PR address? (A short summary is preferred over links)

Solution

How does this PR address the problem stated above? (Describing the solutions implemented in code will facilitate a smooth discussion, review and testing of this PR)

Steps to Test

Which unit/integration/application tests are applicable to this code change? (At minimum a test of some kind should be provided)

Example App

void setup() {
  /* A minimal example app is super helpful 
   * for testing new features and fixes. 
   * A link to a Docs PR is even better!
   */
}

void loop() {

}

References

Links to the Community, Docs, Other Issues, etc..

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Completeness

• User is totes amazing for contributing!
• Contributor has signed CLA (Info here)
• Problem and Solution clearly stated
• Run unit/integration/application tests on device
• Added documentation
• Added to CHANGELOG.md after merging (add links to docs and issues)