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RE: Electronics Question
- To: <ukha_d@xxxxxxx>
- Subject: RE: Electronics Question
- From: "Keith Doxey" <lists.diyha@xxxxxxx>
- Date: Sun, 24 Feb 2002 09:22:40 -0000
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
The
MAX232 I posted to the list yesterday includes voltage doublers and
converters
all in a single 16pin DIP.
In
fact I was building a test board last night with a MAX232 and PIC
16F628.
Keith
> Hi,
>
> I'd
like to take a data signal clocked at 1200 Baud, from a battery
>
powered deivce (power is 3x1.5V AAA) for connection to a
> serial
input
at
> either 5V or RS232 levels, any suggestions on the best way to
do
this.
>
> Note I only need to read the data.
I assume
the
question you are asking is how do I get the required
voltage to run
rs232 ?
If that is what you want then you could look at a
DC-DC converter, mamim
do
them from memory
http://dbserv.maxim-ic.com/PowerSupplies.cfm
Or
if you don't heed a higher voltage for any other parts of you design
you
could look at a rs232 driver with voltage conversion built in.
Again
Maxim
do loads of theses but I can't remember the part numbers, take a
look on
the same site under
interface.
John
For
more information: http://www.automatedhome.co.uk
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