[oopic] Re: Using ultra sonic sensor with the oopic

--- In oopic@yahoogroups.com, "wku_mobile" <wku_mobile@...> wrote:
>
> The sensors can't be connect to the 31 Digital I/O lines and
> communicate with PW or RX?

The OOPic has no decent facility for using PW and serial I/O at 9600
baud would be iffy. You are pretty close in that a message is only 5
chars and, if you looped on receiving chars you MIGHT be able to get
a good message. Serial with the OOPic is a bad idea. If you want to
try, use oSerialPort on the only hardware UART. Using oSerialL on
any (or multiple) IO line(s) is doomed to fail.

>
> If I was to go with the A2D lines could I add a extension module to
> get more then 7 (I was thinking it was only 4)?

You could add an external analog multiplexer and still use one of the
OOPic A/D inputs. Try to find one that will operate with a single
supply of 5V. This one MIGHT work:

http://www.vishay.com/docs/72552/dg406b.pdf

> Is there any example code on how to program using A2D?

Read the OOPic documentation for the oA2D (or oA2D8 or oA2D10) object.

Richard

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