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The world's first JavaScript microcontroller. Develop intelligent devices quickly and easily.
The world's first JavaScript microcontroller. Develop intelligent devices quickly and easily.
1,692 backers pledged £100,710 to help bring this project to life.

New Prototype

Posted by Gordon Williams (Creator)

We just got our latest prototype back from Seeed. It looks a lot better, and this time we actually remembered to add something for scale - a British 2 pence coin (26mm dia.):

There are one or two changes over the one you'll have seen in the KickStarter page:

  • Bigger and clearer markings for pin names
  • A standard JST PHR-2 battery connector. Not only is this stronger, but you'll have a great selection of batteries (they're used a lot in cordless phones), and you won't have to worry about connecting the battery the wrong way around (which would be bad).
  • SMD crystal and lower-profile capacitor (these are far more rugged than the previous ones we used)
  • Separate LEDs (still RGB) - this may seem strange, but it means the board uses more standard parts (see below) and it's also far more obvious to beginners what each of the 3 LEDs are and how they mix to form one colour.
  • Pretty much all components are from Seeed's Open Parts Library - which means that when the schematics are released, you'll be able to easily make your own PCBs without having to try and source parts from several different manufacturers.

The stretch goals are coming, but probably tomorrow - we've got to do a bit of research to see if what we want to offer you is even possible!


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    1. Gordon Williams 3-time creator on

      Thanks - I'll have ago at changing the connector in the next revision then!

      Tim: Thanks for letting me know about colourblindness - I have some friends with it, but never even considered the multicolour LED issue!

    2. Tim Rowe on

      While I personally have lost of MiniUSB devices, MiniUSB is being phased out in favour of MicroUSB. For that reason alone I think a move to it as a standard would be more sensible, so as to not continue supporting an 'old' standard.

      I'm really happy to read the decision on not using a multi-colour LED. As a colourblind person, I can't begin to express how frustrating it is when I'm expected to determine whether the same LED is Green, Red, Orange etc - a distinct physical position is far easier to determine.

    3. Ian Milne on

      I'd love to see a micro usb port instead of mini. I have handfuls of micro usb cables laying around from devices and I can only think of one mini usb cable I have here. A couple other things I'd like to see are mounting holes and some headers to make prototyping easier (even if I have to solder them in when I recieve the board). I have my arduino and breadboard mounted inside a waterproof case and it makes it really convenient for throwing it in my backpack to transport around without me worrying about it getting damaged.

    4. Gordon Williams 3-time creator on

      Hi Horace - A huge amount of the dev boards out there use mini-usb including the Arduino Nano, so that's why we went with it. I'd be interested to see if anyone else feels strongly about it - we're looking at one more PCB revision so it's a possibility we could change.

    5. Horace Nelson on

      This sounds awesome, but is that a mini-USB port? Odd choice.

    6. John McLear on

      Looks great, congrats :)