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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.
@Vlad
Hi @cefitzger, ~afaik Bluez is used in android~ (wrong, it used to be up until 4v). Anyways, I wonder what happens when you
NRF.setSecurity({lesc: 1});and then manually initiate bonding? This flow (central initiated) could be different to the one that you are trying to do (when peripheral responses with an error and then central automatically initiates secure connection). I'm just trying to narrow it down, there might be nothing to do with characteristic security.