pxt-calliope/docs/reference/control/device-serial-number.md
2016-07-21 13:29:59 -07:00

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# Device Serial Number
Derive a unique, consistent serial number of this device from internal data.
```sig
control.deviceSerialNumber();
```
**This is an advanced API.** For more information, see the
[micro:bit runtime messageBus documentation](https://lancaster-university.github.io/microbit-docs/ubit/messageBus/).