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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.
@Gordon
Where are you getting the firmware from that you're finding
1v91in? When I download http://www.espruino.com/binaries/espruino_1v92_wifi.bin and search for1vI see1v92in a few places, but no mention of 1v91.When you connect the Espruino WiFi and press the button, do you keep the button held down? If you hold the button down then it'll leave the bootloader mode after a second or two - which might be what you're seeing when you plug into USB (it's the only way I can get a device here to light the LEDs for just a second).#
Can you try plugging in with the button pressed, but releasing the button as soon as the LEDs light?