Did you disconnect the Web IDE from the Puck first?
Bluetooth LE devices don't advertise while something is connecting to them.
@Gordon started
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 disconnect the Web IDE from the Puck first?
Bluetooth LE devices don't advertise while something is connecting to them.