Hi Gus

On Sat, Mar 5, 2011 at 5:04 PM, YES NOPE9 <yes@nope9.com> wrote:
> Has anyone worked with this chip ? =A0I believe it is a Bluetooth to
> SPI interface chip. =A0It may support asynchronous serial .... I am not s=
ure about that since I did not see a SPP profile listed.
> $3 qty 1

The Nordic device is a 'Single Mode' Bluetooth Low Energy chip. It is
designed for small low power sensors.

Bluetooth Low Energy is different to traditional Bluetooth, Although
they use same radio they are subtly different that Low Energy Devices
are not backwards compatible. Also Low Energy also has it's own set of
strimmed down profiles to match the lower data rate sensor style
applications of Low Energy. (So no SPP)

Single mode means it will only do BT Low Energy and Low Energy Profiles.

Dual Mode Devices (BT 4.0) will do both Legacy and Low Energy. However
phones with Dual mode BT chips are not likely to hit the shops until
end of Q3 - Q4.

> Which of these protocols is a Bluetooth smart phone likely to support ?

So none at the moment :(

> I am looking for simple , cheap low speed bi-directional data transfer wi=
th a smart phone.

Depends on the Phone. I'd say SPP is your best bet as most Phone OS
(except iPhone I think) will give you enough of an interface to BT to
get SPP. However that means module on the other side, this usually is
one with a CSR BC4 and external flash which pushes the price up.....

Sorry I can't be of more positive help with your end goal, Low energy
may do what you want but not yet.

Best regards,
Gordon

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