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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.
@fanoush
This is bluetooth DFU for original Desay bootloader - it does not use standard Nordic BLE DFU guids so cannot be updated via nrf connect Android app. Until now the procedure of updating new device was using nordic tools over TTL serial. So this is targeted to SDK11 based development with original bootloader for people who don't have usb to TTL serial adapter. Not just for Espruino built with SDK11 but also for Arduino code.
Once updated to espruino SDK12 bootloader (which now works still only via TTL serial, this tool does not handle uploading bootloader or soft device yet) this D6 flasher is no longer useful as you can use nordic nrf connect since the DFU over BLE is standard nordic one (and signed, not old legacy format).