[chbot] Robot Friendly Bluetooth board, and Arduino Nano V3 compatible

[Richard Jones]

Regarding the DealExtreme Bluetooth module I came across this datasheet that
has the same chipset and pinout with similar layout just a couple of SMD
components in different places:
http://www.cutedigi.com/pub/Bluetooth/BC4_Blue2.0_Datasheet.pdf

On Tue, Aug 9, 2011 at 11:09 AM, David Churcher <davechcr at dchurcher.com>wrote:

> On 8/08/2011 9:15 a.m., Richard Jones wrote:
> > I'm considering ordering this bluetooth board from Deal Extreme. I'm
> > hoping that it will provide short distance ttl serial comms to my
> > micromouse robot. Handy for testing acceleration and deceleration
> > without the encumbrance of cables.
> >
> >
> http://www.dealextreme.com/p/wireless-bluetooth-rs232-ttl-transceiver-module-80711
>
>   I have a couple of these boards with different firmware, from
> Seeedstudio and Dfrobot. They work well enough, and have connected to
> every PC and Android device that I've tried. Occasionally they get
> disconnected and you have to cycle power on the board to be able to
> reconnect, but it doesn't happen very often. The pin spacing on the
> board is smaller than 0.1" so you have to solder wires to it or use a
> PCB. You can get them in a "Bee" carrier board from Seeedstudio, which
> is a bit easier to play with.
>
>  Re the Nano, If you're looking for a really tiny and light Arduino the
> Seeeduino Film ($US19,
> http://www.seeedstudio.com/depot/seeeduino-film-p-689.html) is pretty
> neat. Folded up it is only twenty-something millimetres square. You can
> even snip off the parts you're not using. It is a little more expensive
> than the Nano, but comes with a tiny LiPo battery and charger circuit.
> You do need a 3.3V USB-to-serial board to program it. It's only
> ATMega168 at 8MHz, the film is obviously a bit fragile, and I have
> managed to blow up the LED output pin somehow (I think by getting the
> DTR and ground wires crossed), but the rest of the board still works OK.
>
> Regards,
> David
>
>
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