serial transmitter
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Posts: 46,084
Sending & receiving serial data between two Stamps is quite simple
with the RWS/TWS RF modules, but actually programming the Stamp
by RF would involve much more than simple wireless communications
between two Stamps.
Here's an example of controlling a robot via·wireless RF·to
show how simple this is. http://www.rentron.com/ruf-bot.htm
The Stamp requires several connections to the PC serial port to establish
a programming link.· These are RX,TX,DTR and the loop-back connection
between DSR & RTS.
Programming the Stamp via a wireless interface would require another
microcontroller that would emulate the Stamp programming software
on the receiving end, as well as another for the transmission circuit.
There's quite a bit going on between the Stamp and PC programming
connection, and a wireless device for actually programming the Stamp
would be quite a task.
Regards,
Bruce Reynolds
webmaster@rentron.com
http://www.rentron.com
Affordable·Solutions For Stamp RF Remote Control
Original Message
From: John & Lisa
To: basicstamps@egroups.com
Sent: Wednesday, October 18, 2000 4:24 PM
Subject: [noparse][[/noparse]basicstamps] serial transmitter
Is it possible to send the RS232 serial signal that's used for programming the BS II by RF.
I have the TWS-434 and the RWS-434 from Renton and have been trying to find a way to
send new or updated commands to my BoEBoT without trying to catch it, to plug it into
the serial port. I'm sure there must be a way, we have a printer at work that communicates
both ways with the computer, but only works well at about 10 feet. I would like to try and
programme my BoT using a similar technique.
any help would be very much welcome.
thanks in advance
John
with the RWS/TWS RF modules, but actually programming the Stamp
by RF would involve much more than simple wireless communications
between two Stamps.
Here's an example of controlling a robot via·wireless RF·to
show how simple this is. http://www.rentron.com/ruf-bot.htm
The Stamp requires several connections to the PC serial port to establish
a programming link.· These are RX,TX,DTR and the loop-back connection
between DSR & RTS.
Programming the Stamp via a wireless interface would require another
microcontroller that would emulate the Stamp programming software
on the receiving end, as well as another for the transmission circuit.
There's quite a bit going on between the Stamp and PC programming
connection, and a wireless device for actually programming the Stamp
would be quite a task.
Regards,
Bruce Reynolds
webmaster@rentron.com
http://www.rentron.com
Affordable·Solutions For Stamp RF Remote Control
Original Message
From: John & Lisa
To: basicstamps@egroups.com
Sent: Wednesday, October 18, 2000 4:24 PM
Subject: [noparse][[/noparse]basicstamps] serial transmitter
Is it possible to send the RS232 serial signal that's used for programming the BS II by RF.
I have the TWS-434 and the RWS-434 from Renton and have been trying to find a way to
send new or updated commands to my BoEBoT without trying to catch it, to plug it into
the serial port. I'm sure there must be a way, we have a printer at work that communicates
both ways with the computer, but only works well at about 10 feet. I would like to try and
programme my BoT using a similar technique.
any help would be very much welcome.
thanks in advance
John
Comments
I have the TWS-434 and the RWS-434 from Renton and have been trying to find a way to
send new or updated commands to my BoEBoT without trying to catch it, to plug it into
the serial port. I'm sure there must be a way, we have a printer at work that communicates
both ways with the computer, but only works well at about 10 feet. I would like to try and
programme my BoT using a similar technique.
any help would be very much welcome.
thanks in advance
John
load, I would think that you could use Tracy Allen's excellent "stach"
module in conjunction with your rf link.
see http://www.emesystems.com/stachedat.htm
The stach can hold up to 15 stampII programs. You initiate program
downloads by pressing a single pushbutton. It seems you could bypass the
pushbutton with a relay which the stamp would control.
Then you could rf the number of the program you want to download to the
target stamp, and it would then control the relay to initiate the download.
Just a thought
Steve
project. It's not what I'm looking for at the moment though. My idea really
involves my BoT roving around the house when it bumps into something I
wanted it to send it's location back to the computer so I could create and
accurate map of the room. And also swap the Txer and Rxer around so that I
could send data from the computers serial port directly to the stamps serial
interface to change the onboard programme.
Thanks anyway.
John
Original Message
From: <sargent@s...>
To: <basicstamps@egroups.com>
Sent: Thursday, October 19, 2000 12:05 AM
Subject: Re: [noparse][[/noparse]basicstamps] serial transmitter
> If you will know ahead of time the alternate programs that you may wish to
> load, I would think that you could use Tracy Allen's excellent "stach"
> module in conjunction with your rf link.
>
> see http://www.emesystems.com/stachedat.htm
>
> The stach can hold up to 15 stampII programs. You initiate program
> downloads by pressing a single pushbutton. It seems you could bypass the
> pushbutton with a relay which the stamp would control.
>
> Then you could rf the number of the program you want to download to the
> target stamp, and it would then control the relay to initiate the
download.
>
> Just a thought
>
> Steve
>
>
>
>
>Thanks for you idea, sounds really good, and I may use this as a future
>project. It's not what I'm looking for at the moment though. My idea really
>involves my BoT roving around the house when it bumps into something I
>wanted it to send it's location back to the computer so I could create and
>accurate map of the room.
You might consider a scheme where the current data is retained in onboard
memory (i.e. separate Local_Map EPROM(s) ), and these are offloaded on
excursions back to Home_Base (for re-charging, re-programming or
what-have-you). These Local_Maps can be in any simple (bit, byte or
character) format you wish, since the manipulation is pre-defined (noted
below) to occur on the PC. The Local_Maps are merged into larger grids
(Excursion_Grid_Maps, Room_Grid_Maps, Yard_Grid_Maps, etc) with subsetting
and supersetting (like words on a page, pages in a chapter, chapters in a
book, book on a shelf, shelves in a library, etc). In the end you have a
Robot Atlas of it's travels, both for historical, and future expeditionary
purposes.
> And also swap the Txer and Rxer around so that I
>could send data from the computers serial port directly to the stamps serial
>interface to change the onboard programme.
You may find that is not necessary, if you use the BS-2SX or BS-2SE and use
Tracy Allen's Stache facility, as others have mentioned. Although the
intent may have been for data logging, it has MANY other uses.
Re-programming on the fly, has many downsides, and the extra errors
introduced (even if it could be done via RF) would NOT be worth the
headaches (my opinion only). Just as a simple for instance, the Stamp would
have no way to respond to a parity, CRC or ECC check. Thus. although the RF
link may be sound, other elements in that link may NOT be so. Vibration,
heat, static, and all sorts of other things can cause varios problems over
time.
>Thanks anyway.
>John
Just some additional thoughts
Regards,
Bruce Bates
>
Original Message
>From: <sargent@s...>
>To: <basicstamps@egroups.com>
>Sent: Thursday, October 19, 2000 12:05 AM
>Subject: Re: [noparse][[/noparse]basicstamps] serial transmitter
>
>
> > If you will know ahead of time the alternate programs that you may wish to
> > load, I would think that you could use Tracy Allen's excellent "stach"
> > module in conjunction with your rf link.
> >
> > see http://www.emesystems.com/stachedat.htm
> >
> > The stach can hold up to 15 stampII programs. You initiate program
> > downloads by pressing a single pushbutton. It seems you could bypass the
> > pushbutton with a relay which the stamp would control.
> >
> > Then you could rf the number of the program you want to download to the
> > target stamp, and it would then control the relay to initiate the
>download.
> >
> > Just a thought
> >
> > Steve
> >
> >
> >
> >
away from it just now.
I'm going to try and stick to me original idea for the moment.
Thanks anyway
john
Original Message
From: "Bruce Bates" <bvbates@u...>
To: <basicstamps@egroups.com>
Sent: Thursday, October 19, 2000 1:18 PM
Subject: Re: [noparse][[/noparse]basicstamps] serial transmitter
> At 10/19/2000 +0100 10:25 AM, you wrote:
> >Thanks for you idea, sounds really good, and I may use this as a future
> >project. It's not what I'm looking for at the moment though. My idea
really
> >involves my BoT roving around the house when it bumps into something I
> >wanted it to send it's location back to the computer so I could create
and
> >accurate map of the room.
>
> You might consider a scheme where the current data is retained in onboard
> memory (i.e. separate Local_Map EPROM(s) ), and these are offloaded on
> excursions back to Home_Base (for re-charging, re-programming or
> what-have-you). These Local_Maps can be in any simple (bit, byte or
> character) format you wish, since the manipulation is pre-defined (noted
> below) to occur on the PC. The Local_Maps are merged into larger grids
> (Excursion_Grid_Maps, Room_Grid_Maps, Yard_Grid_Maps, etc) with subsetting
> and supersetting (like words on a page, pages in a chapter, chapters in a
> book, book on a shelf, shelves in a library, etc). In the end you have a
> Robot Atlas of it's travels, both for historical, and future expeditionary
> purposes.
>
> > And also swap the Txer and Rxer around so that I
> >could send data from the computers serial port directly to the stamps
serial
> >interface to change the onboard programme.
>
> You may find that is not necessary, if you use the BS-2SX or BS-2SE and
use
> Tracy Allen's Stache facility, as others have mentioned. Although the
> intent may have been for data logging, it has MANY other uses.
>
> Re-programming on the fly, has many downsides, and the extra errors
> introduced (even if it could be done via RF) would NOT be worth the
> headaches (my opinion only). Just as a simple for instance, the Stamp
would
> have no way to respond to a parity, CRC or ECC check. Thus. although the
RF
> link may be sound, other elements in that link may NOT be so. Vibration,
> heat, static, and all sorts of other things can cause varios problems over
> time.
>
> >Thanks anyway.
> >John
>
> Just some additional thoughts
>
> Regards,
>
> Bruce Bates
>
>
> >
Original Message
> >From: <sargent@s...>
> >To: <basicstamps@egroups.com>
> >Sent: Thursday, October 19, 2000 12:05 AM
> >Subject: Re: [noparse][[/noparse]basicstamps] serial transmitter
> >
> >
> > > If you will know ahead of time the alternate programs that you may
wish to
> > > load, I would think that you could use Tracy Allen's excellent "stach"
> > > module in conjunction with your rf link.
> > >
> > > see http://www.emesystems.com/stachedat.htm
> > >
> > > The stach can hold up to 15 stampII programs. You initiate program
> > > downloads by pressing a single pushbutton. It seems you could bypass
the
> > > pushbutton with a relay which the stamp would control.
> > >
> > > Then you could rf the number of the program you want to download to
the
> > > target stamp, and it would then control the relay to initiate the
> >download.
> > >
> > > Just a thought
> > >
> > > Steve
> > >
> > >
> > >
> > >
>
>
>
>
>