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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.
@JamesS
Hi,
I initially misinterpreted the instructions. To clarify, when re-inserting the battery, if you hold down the button when inserting battery the LED goes green until the button is released. The LED then stays red whether the button is pressed or not.
While in this state, if I run sudo hcitool lescan on my Raspberry Pi it reports Mac address and DfuTarg.
I flashed my puck.js using NRF Toolbox on an Android 5.0 Phone. The LED went blow whilst it was flashed.
James