Did you pair in the Windows OS menu first? I've seen that cause some issues.
Puck.js !BTN happens when you power the Puck.js on holding the button to put it into self-test mode, but then you keep the button held so it thinks the button is shorted. It changes its advertising name so that it's easy for us to detect what's broken if a self-test fails.
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.
Did you pair in the Windows OS menu first? I've seen that cause some issues.
Puck.js !BTN
happens when you power the Puck.js on holding the button to put it into self-test mode, but then you keep the button held so it thinks the button is shorted. It changes its advertising name so that it's easy for us to detect what's broken if a self-test fails.Another quick way to do development is to use the Web IDE Relay to allow you to connect with your phone and develop on your PC - see http://forum.espruino.com/conversations/300770/
I'll be making some big improvements to that soon to make it much more usable though