I just saw your other post - try booting the Puck outside of Bootloader mode. The IDE is designed to connect to a normal Puck, not the bootloader itself.
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.
I just saw your other post - try booting the Puck outside of Bootloader mode. The IDE is designed to connect to a normal Puck, not the bootloader itself.