After you have built your Arduino project, you may have many hours ahead of tweaking the code until it’s perfect. It’s handy to know a few shortcuts to speed up the process. Here are the some of the most useful:
| Windows/Linux | Mac OS | Action |
|---|---|---|
| Ctrl+N | Cmd+N | Open new sketch. |
| Ctrl+O | Cmd+O | Open existing sketch. |
| Ctrl+S | Cmd+S | Save sketch. |
| Ctrl+Shift+S | Cmd+Shift+S | Save a sketch with a new name. |
| Ctrl+R | Cmd+R | Compile and verify a sketch. Handy for checking the grammar of your code without uploading the sketch. |
| Ctrl+T | Cmd+T | Auto format. Adjusts the alignment and spacing of your code to improve the legibility (but also undoes your own formatting if you’re arranging your sketch in a unique way). |
| Ctrl+Z | Cmd+Z | Undo the last change to code. |
| Ctrl+Shift+Z | Cmd+Shift+Z | Redo the last change to code. |
| Ctrl+/ | Cmd+/ | Comment/uncomment the selected code. Useful for quickly commenting code out. Commenting a section of code means that it is not uploaded to the board, so you can use comments to quickly switch among different sections of code without having to delete them. |
| Ctrl+Shift+F | Cmd+Shift+F | Find reference page for selected code term. If you’re
unsure about a highlighted term in your sketch (such as void, int,
or pinMode), simply select that term and use this shortcut to be
sent to the latest reference page. |
| Ctrl+U | Cmd+U | Upload the sketch to the Arduino board. |
| Ctrl+Shift+M | Cmd+Shift+M | Open the serial monitor. |
| Ctrl+K | Cmd+K | Open sketch folder. |
