Arduino Port Changes after Uploading
- Dominant language
- Java
- Stars
- 14.6k
- Forks
- 7k
- PR merge metrics
- No merged PRs in 30d
Description
How to recreate problem:
1. Connect Nano 33 BLE Sensor board with microUSB cable
2. Open Arduino IDE 1.8.19 (on Windows 10)
3. Open the Blink.ino sketch
4. Select the correct board and port in the *Tools* menu
5. Upload sketch
**Observed Outcome:** Selected port then changes after the sketch is uploaded. In my case it changed from COM port 13 to 14. I would then have to change it back to 13 in order to select the correct port.
IDE during sketch upload
IDE after sketch upload
**Expected outcome:** Port does not change after uploading sketch to board
Contributor guide
Research direction
Reproduce the issue in Arduino IDE 1.8.19 on Windows 10 with a Nano 33 BLE Sensor board using the Blink.ino sketch and the documented upload steps. Trace the IDE's port selection and upload handling to determine why COM13 becomes COM14; done means the selected port remains unchanged after upload.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- arduino, java
- Domain
- desktop, embedded-iot
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100