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Winner ! :-)

and the code

NRF.on('connect', function(addr) {
  digitalWrite(LED3,1);
  setTimeout(function () {
    digitalWrite(LED3,0);
  }, 750);
});

NRF.on('disconnect', function(addr) {
  digitalWrite(LED1,1);
  setTimeout(function () {
    digitalWrite(LED1,0);
  }, 750);
 }
);

NRF.setServices({
  0x1809 : { // Temp
  0x2A6E: {  // Temperature
   readable: true,
   value : [E.getTemperature().toFixed(2)]
}},
  0x180F : { // Battery Service
  0x2A19: {  // Battery Level
    readable: true,
    value : [Puck.getBatteryPercentage().toFixed(0)]­
  }
 }
});

also a reconnect after is non responsive, but a second connection works

>save()
Disconnected
Connected
>
Disconnected
Connected
>
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
> 

@Gordon a dead end ?

Connected
>
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
>for (var i=(120-3)*4096;i<120*4096;i+=32) {
:  var s = i.toString(16);
:  for (var x=0;x<32;x+=4)
:    s+=" "+("00000000"+peek32(i+x).toString(16)).­substr(-8);
:  console.log(s);
:}
75000 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
75020 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
75040 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
75060 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
  ...
77f60 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
77f80 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
77fa0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
77fc0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
77fe0 ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff deadbeef
=undefined
>save()
Disconnected

@Gordon Im not sure what the difference is but once a save from the command line stops working the only way I can get it back it be blanking out the code window and setting save on load and saving. Once that save is done, running save() on the command line works !

Connected
>
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
>save()
Disconnected
Connected
>
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
>
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v91 Copyright 2016 G.Williams
>Erasing Flash.....
Writing...
Compressed 32000 bytes to 8
Checking...
Done!
Loading 8 bytes from flash...
=undefined
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
>save()
=undefined
Erasing Flash.....
Writing....
Compressed 32000 bytes to 1174
Checking...
Done!
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
>
 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v91 Copyright 2016 G.Williams
>Erasing Flash.....
Writing...
Compressed 32000 bytes to 8
Checking...
Done!
Loading 8 bytes from flash...
=undefined
>load()
=undefined
Loading 8 bytes from flash...
>dump()
pinMode(D29, "input_pulldown", true);
=undefined
> 

1

SENT	

Having similar issues, I've been setting NRF Services and trying to save the code getting disconnects. I've manged to do a reset ( insert battery, hold button, wait for self test to finish ) then ran your code above and tried a save() ... disconnected. I think only the last part of the log is the interesting part "BT> SEND ERROR: NotSupportedError: GATT operation failed for unknown reason."

BT> Sending "s"
BT> Sent
BT> RX:"s"
BT> Sending "a"
BT> Sent
BT> RX:"a"
BT> Sending "c"
BT> Sent
BT> RX:"c"
BT> Sending "v"
BT> Sent
BT> Sending "e"
BT> RX:"v"
BT> Sent
BT> RX:"e"
BT> Sending "\b"
BT> Sent
BT> RX:"\b \b"
BT> Sending "\b"
BT> Sent
BT> RX:"\b \b"
BT> Sending "\b"
BT> Sent
BT> RX:"\b \b"
BT> Sending "v"
BT> Sent
BT> RX:"v"
BT> Sending "e"
BT> Sent
BT> RX:"e"
BT> Sending "("
BT> Sent
BT> RX:"("
BT> Sending ")"
BT> Sent
BT> RX:")"
BT> Sending "\r"
BT> SEND ERROR: NotSupportedError: GATT operation failed for unknown reason.
Disconnect callback...
WARNING: [notify_warn] Disconnected
>>> Disconnected

Out of the box they have a small scripting language, but limited as I said. I created a proximtiy/alert project and then gave up.

Having javascript and BLE in such a small module would be great, my temp sensor in every room project might finally get started.

Both !

I'd be interested in one breakout board to do my development on and a number of bare modules to use with custom PCBs.

I've used RN4020 modules before but they always felt limited.

I'm planning on offering MDBT42 modules (the ones used in Puck.js)
pre-programmed with Espruino, and potentially offering them on a
break-out board.

Yes please @Gordon.

ordered ! :-) https://www.tindie.com/products/gfwillia­ms/espruino-puckjs/

haha i must be a mind reader, cheers for the reply. I'll keep checking for a link.

have you had a look a stripe.com ? You could knock up a product page and use their API to take payment.

Hey Gordon,

Have you got date/month the puck will be available to us non backers ? Getting pretty jealous of the fun people are having in the forums.

If anyone one has a extra puck in the cupboard I'd happily help with rehoming it ;-)