see my project:
http://fstab.nl/beaglebone
Nico
Jerry Scharf wrote:
Paul,
I was looking at that as well. Does anyone know what other
hardware/software/configuration would be needed to hang one or more of
these off an I2C interface of a beaglebone black? I am already going
to build a board to do other interface things off the BBB, so adding
this is really simple and the chips are cheap.
thanks,
jerry
On 11/21/2014 02:31 PM, Paul Alfille wrote:
The DS2482 (i2c bus master) suggests that it can run at 3.3V level.
http://datasheets.maximintegrated.com/en/ds/DS2482-100.pdf
Paul
On Fri, Nov 21, 2014 at 4:53 PM, Jan Kandziora <j...@gmx.de
<mailto:j...@gmx.de>> wrote:
Am 21.11.2014 um 19:56 schrieb Jerry Scharf:
> Hi,
>
> I am looking at using the MAX31850 chip for my test setup. It
is a 3.3V
> only device (will not take 5V on power.) Are there any bus masters
> and/or switches that support 3.3V for the power and data lines?
>
I'd say, don't use parasite power, run the bus on 5 volts and
just put a
kiloohms voltage divider right before the DQ pin of the slave. The
slaves are open-drain on their DQ output, so this should be
sufficient.
Kind regards
Jan
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