how do I change serial number?

[espruino-discuss]

Posted at 2020-03-18 by user109783

The method getSerial(), I got a serial number is so long, I want to rewrite it with a simple number....
Are there any methods like setSerial() to change it?

[espruino-discuss]

Posted at 2020-03-18 by AkosLukacs

Altho you didn't say which device you have, but I think it returns the MAC of the device in all cases.
Question is: what do you want to accomplish. You can use for example storage to save configuration like a shorter device name in flash. And read that in the onInit().

---

Posted at 2020-03-18 by @gfwilliams

What device are you using?

But I'm afraid not. The serial number is usually based on the underlying hardware, so cannot be changed - that's the whole point.

If you want it smaller, use .substr(...) to take only a small fraction of it.

---

Posted at 2020-03-18 by user109783

I have a STM32F4DISCOVERY board. Yes, I want to have a unique identity whick like MAC ADDRESS in the board, but I don't want to define it in code. I see process.env.SERIAL is a good position to store.

---

Posted at 2020-03-18 by user109783

Thank you, your suggestion is good for me.