Thank you very much for your kind reply and the answer.
I wrote an email to "contact@espruino.com" 1 or 2 weeks ago. But, I haven't received an answer yet. Therefore, I posted here.
I'd like to know which countries we can officially use puck.js.
Some countries need a certificate to use the Bluetooth device in their countries.
Can we use puck.js. in China, US and Canada?
Is this kind of info written in web site?
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
No problem.
I could get clear answer here.
Thank you very much and have a nice day!