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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
If anyone's interested in having a more in-depth look at the beacon, there's a WebGL version here - use the mouse and arrow keys: http://pur3.co.uk/beacon/
The PCB on there is an older revision so it looks slightly different to the real one, but it's mostly the same - I just haven't had time to update it.
@allObjects we'll see how it goes in the next few days, but I think having integrated radio does make things pretty appealing to people now!
@tve all of Espruino is Open Source, but the nRF52 uses something they call a 'softdevice' which handles BT and is a binary blob. Their reasoning is they can get that certified, so you can create BT devices without having to pay to get them re-done.
It's great on nRF52 where you have 64kB RAM - but it sucks on the cheap nRF51s where you have 16kB and the stack takes up 10 of it!