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PICList Thread
'Internet acces and control with PICs'
1998\09\29@200424 by Gabriel Gonzalez

Just thought somebody may be interested:

"BusinessWire, Tuesday, September 29, 1998 at 08:34

   CHANDLER, Ariz.--(BUSINESS WIRE)--Sept. 29, 1998--Microchip
Technology Inc. (NASDAQ:MCHP) and emWare Inc. Tuesday announced a
partnership providing Internet access, control and management of
systems using Microchip's PIC16CXXX and PIC17CXXX microcontrollers.
   The agreement establishes a port of emWare's EMIT(R) (Embedded
Micro Internetworking Technology(TM)) software to the PICmicro(TM)
family of 8-bit RISC microcontrollers. EMIT is the only distributed
device networking software that delivers Internetworking capabilities
to virtually any product, including those with 8- and 16-bit
microcontrollers, without requiring an RTOS or TCP/IP stack at the
   "Microchip's PICmicro devices are ideally suited for applications
such as office automation, industrial, medical, communications,
consumer, and automotive markets that are anxious to include device
networking with Internet access," said Satish Kholay, product
marketing manager, Microchip Technology Inc. "The inclusion of
emWare's EMIT software with our PICmicro technology gives designers an
easy-to-use GUI interface and adds the strength of device networking
including the Internet to the existing benefits of the PICmicro
   The PICmicro MCU architecture combines high performance, low cost
and small package size to offer the best price/performance ratio in
the industry. Microchip pioneered the use of a RISC microcontroller
architecture to obtain high speed and instruction efficiency with a
wide range of high speed communication peripherals. Microchip's
PICmicro family continues to command a dominant 8-bit MCU marketshare,
as evidenced by the Company's recent advancement to the number two
position in worldwide 8-bit microcontroller shipments.
(Dataquest, June 1998)
   "EMIT brings flexible, complete device networking solutions to
intelligent devices using PICmicro technology while maintaining the
cost-effectiveness and high performance that attracts manufacturers to
the PICmicro architecture," said Christopher Sontag, chief technology
officer and co-founder of emWare Inc. "The focus of EMIT on providing
Internetworking to devices of any size, particularly those with 8- and
16-bit microcontrollers, makes it the ideal networking solution for
devices using the PICmicro microcontrollers."
   At the core of EMIT software's distributed networking
architecture is a micro Web server--the industry's smallest--that uses
as little as 1Kb of memory at the device. Standard Internet
technologies, such as Java, HTTP and a Web browser interface are used
to access, control and monitor devices through emGateway, the
communication link between IP networks and lightweight networks, using
the serial communication devices such as I2C(TM), RS485, CAN, RF.
   The user interface is a standard Web browser in many
applications, using industry standard browser technology to reduce
client side development. The user interface can operate on a remote
Web browser, a directly connected laptop, or even a handheld PDA.
Where a user interface is not necessary, it can connect directly to an
application or database. EMIT's open, distributed network solution
provides a complete software toolkit for networking embedded devices."

1998\09\30@100151 by chuck

There is something I don't understand about this EMIT software. Once
you have it in your micro, how does it communicate with the internet?
Does it have the communication software to communicate with a modem?
Does it stay on-line constantly?
Can anybody explain?
Emware's website doesn't explain this.

---Gabriel Gonzalez <spam_OUTtgoTakeThisOuTspamCHIH1.TELMEX.NET.MX> wrote:
{Quote hidden}

Chuck Hellebuyck
Electronic Products
Check out our Large Character Serial LCD Modules!
See our new Serial Keypad Modules!

Get your free address at

'Internet acces and control with PICs'
1998\10\01@004311 by paulb
Brian Boles wrote:

> For applications like remote control of your house, the ISP's need to
> have a server model that can connect on command to another thin server
> in a remote location.  I.E.  You login to the internet, you ask for
>, and the ISP system makes a phone call to myhouse and
> connects my EMIT enabled system.  Otherwise you have to have the
> webcam type connection where the remote server is continually
> connected and uploading to the ISP.

 We are still *struggling* with the concept of a telephone line, and
for that matter, an ISP.  A related concept is making a "telephone call"
and "paying by the call".  Until these disappear, to be subsumed by a
communications utility as must indeed happen (but when?), it will be

 The future of the "telephone line" is (and I«m sure this is nothing
really novel to this list) a digital line multiplexed at a packet level
at the exchange.  Routine low-priority traffic *must* be included in the
subscription, but a modest toll will be payable for medium- and high-
priority traffic (latency and bitrate) which might well include
telephone calls.  For the latter, there will still be alternatives with
compression trade-offs like present Internet Phone.

 A house will be laced with multiplexers (hubs) and twisted pairs,
extras sold at R-S just as they now are.  Such an accessory could be an
interface box with isolation (though the main house hub would provide
that) and suitable spill-out connectors (e.g. watering system, light
switches, I-R interface etc.).  "Phantom" 50V power like a conventional
telephone would be a useful aspect.

 Hmmm.  It«ll come, but how painful will its gestation be?
       Paul B.

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