Qigong button (Puck)

Thanks! Actually I missed this the first time:

The first time the button is pressed after connecting, the returned data (a string: "qigong") is prefixed by ">" when passed to onLine(). Not sure why that is – any ideas?

It's because Espruino writes some text to the console (the command-line interface part) to show that it's moved on to Bluetooth. You could add LoopbackA.setConsole(1) to force the console not to move to Bluetooth - but if you did that then you wouldn't be able to program it until you reset it :)