ci: add an action to automatically close stale issues and PRs

add run-cl-arduino.yml

Add sync_issues GitHub Action for workflows

Merge pull request #1 from rei-vilo/patch-1

Conflict between `min`variable and `min()`function

Seeed:Arduino: fix travis.yml write error

Seeed:Arduino: Add travis build status

Seeed:Arduino: Add travis.yml

Pretty printed the Arduino code with astyle

fix set CONFIG2 register

update README.md

first commit