Re: Recommended I2C boards for TStik with TILT400.Pro

Hi Joel,

I use a TStik mounted on to a custom designed socket board assembly.  I
would suggest you use a Philips PCF8574 8-bit I/O expander I.C. for what you
want as this is ideal for digital I/O.  If you need more than 8 I/O pins you
can either use more devices or use the PCF8575 16-bit version.  When used as
outputs, both these devices will sink about 25mA per output but will only
source a small amount of current so you may have to add driver transistors
depending on what/how you are driving the loads.  Reading inputs is quite
straight forward although you must make sure you can sink the weak pull-up
inside the device.
We use a lot of other I2C devices as well which all work very well with the
TStik.  Make sure you use 1.12 of the TINI firmware along with Systronix's
API for configuring the configuration register (it defaults to CAN bus so
you have to use this to switch to I2C), otherwise things might not work
properly.

Best Regards,

Andy Page,
Unipower Europe Limited.

> Message: 2
> From: "Joel Rowley" <[email protected]>
> To: "'TINI'" <TINI-6tN4nzCoH/[email protected]>
> Date: Tue, 1 Jun 2004 22:47:22 -0400
> charset="us-ascii"
> Subject: [TINI]Recommended I2C boards for TStik with TILT400.Pro
>
> Hey List,
>
> I am looking at I2C communication with my TINI to control my HVAC system.
I
> was wondering if anyone out there is using I2C communication with their
TINI
> (preferably with a TStik and TILT400.Pro setup, but not required).  I
would
> like to know which kind of I2C devices would work best for turning on and
> off relays as well as reading the status of things.  I am having a hard
time
> finding boards/devices that will do this.
>
> Thanks in advance!
> Joel Rowley
>
>
> --__--__--
>

_______________________________________________
TINI mailing list
TINI-6tN4nzCoH/[email protected]
To UNSUBSCRIBE, edit your profile, or see list archives:
http://lists.dalsemi.com/mailman/listinfo/tini