# Terminal via serial port on MacOS Sonoma

Connect

Verify connectivity
```bash
system_profiler SPUSBDataType | grep -i -A5 serial
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/scaled-1680-/ed52VW54j8Q2EyWC-image-1775067252442.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/ed52VW54j8Q2EyWC-image-1775067252442.png)

```bash
ioreg -p IOUSB
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/scaled-1680-/YUxCk9dZZPHKD0Eb-image-1775067462063.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/YUxCk9dZZPHKD0Eb-image-1775067462063.png)




Identify device
```bash
ls -ltr /dev/tty*
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/scaled-1680-/nRhKR6nn8879osxq-image-1775067516589.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/nRhKR6nn8879osxq-image-1775067516589.png)



Disconnect, connect back, repeat command to identify it is exactly the same device (it will be usually owned by the root, but by user)
```bash
ls -ltr /dev/
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/scaled-1680-/L9TebenkXeGW8Vug-image-1775067798258.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/L9TebenkXeGW8Vug-image-1775067798258.png)

Attach ```screen``` to the serial port
```bash
screen /dev/ttys003 115200
```

Exit nicely, press
```
CTRL+A
K
Y
```
[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/scaled-1680-/8ko6wTvpwRDdUb8l-image-1775067886976.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-04/8ko6wTvpwRDdUb8l-image-1775067886976.png)